January 2018 - tz - lists.iana.org

proposed time zone package changes (Samoa, Factory, et al.)
by Arthur David Olson 28 Aug '19

28 Aug '19

Below find proposed time zone package changes; the executive summary: * Makefile Change LOCALTIME default from "Factory" to "GMT"; do not compile "factory" file (but keep it in the distribution). * Theory Remove reference to "Factory" zone. * australasia Change end of DST in Samoa in 2011 from 2011-04-03 0:00 to 2011-04-03 1:00 (thanks to Raymond Hughes for a reference). * localtime.c Initialize ttinfo structures filled by tzparse (thanks to Ravindra for reporting a valgrind warning). * zic.c Fix generation of POSIX strings for zones with rules using "weekday<=n" forms of dates (thanks to Lei Liu for finding the problem). Also, limit output for non-POSIX-specificable zones defined to follow the same rules every year. (Note that no zones of either of the above types appear in the distribution; these changes cater to add-on zones). If no problems are found, 2010n will appear on 2010-10-25. --ado diff -r -c old/Makefile new/Makefile *** old/Makefile Mon Sep 27 09:24:25 2010 --- new/Makefile Tue Oct 12 12:36:50 2010 *************** *** 1,5 **** # <pre> ! # @(#)Makefile 8.8 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)Makefile 8.9 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 12,18 **** # make zonenames # to get a list of the values you can use for LOCALTIME. ! LOCALTIME= Factory # If you want something other than Eastern United States time as a template # for handling POSIX-style time zone environment variables, --- 12,18 ---- # make zonenames # to get a list of the values you can use for LOCALTIME. ! LOCALTIME= GMT # If you want something other than Eastern United States time as a template # for handling POSIX-style time zone environment variables, *************** *** 262,269 **** DOCS= README Theory $(MANS) date.1 Makefile PRIMARY_YDATA= africa antarctica asia australasia \ europe northamerica southamerica ! YDATA= $(PRIMARY_YDATA) pacificnew etcetera factory backward ! NDATA= systemv SDATA= solar87 solar88 solar89 TDATA= $(YDATA) $(NDATA) $(SDATA) TABDATA= iso3166.tab zone.tab --- 262,269 ---- DOCS= README Theory $(MANS) date.1 Makefile PRIMARY_YDATA= africa antarctica asia australasia \ europe northamerica southamerica ! YDATA= $(PRIMARY_YDATA) pacificnew etcetera backward ! NDATA= systemv factory SDATA= solar87 solar88 solar89 TDATA= $(YDATA) $(NDATA) $(SDATA) TABDATA= iso3166.tab zone.tab diff -r -c old/Theory new/Theory *** old/Theory Mon Sep 27 09:24:25 2010 --- new/Theory Tue Oct 12 12:36:50 2010 *************** *** 1,4 **** ! @(#)Theory 8.4 This file is in the public domain, so clarified as of 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! @(#)Theory 8.5 This file is in the public domain, so clarified as of 2009-05-17 by Arthur David Olson. *************** *** 287,294 **** See the file `backward' for most of these older names (e.g. `US/Eastern' instead of `America/New_York'). The other old-fashioned names still supported are ! `WET', `CET', `MET', `EET' (see the file `europe'), ! and `Factory' (see the file `factory'). ----- Time zone abbreviations ----- --- 287,293 ---- See the file `backward' for most of these older names (e.g. `US/Eastern' instead of `America/New_York'). The other old-fashioned names still supported are ! `WET', `CET', `MET', and `EET' (see the file `europe'). ----- Time zone abbreviations ----- diff -r -c old/australasia new/australasia *** old/australasia Mon Sep 27 09:24:27 2010 --- new/australasia Tue Oct 12 13:14:56 2010 *************** *** 1,5 **** # <pre> ! # @(#)australasia 8.18 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)australasia 8.19 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 487,497 **** # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%2020… # </a> Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 ! -11:00 1:00 WSDT 2011 Apr 3 -11:00 - WST # Solomon Is --- 487,507 ---- # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%2020… # </a> + # From Raymond Hughes (2010-10-07): + # Please see + # <a href="http://www.mcil.gov.ws"> + # http://www.mcil.gov.ws + # </a>, + # the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday + # September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight + # to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks + # backwards from 1:00am to 12:00am" + Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 ! -11:00 1:00 WSDT 2011 Apr 3 1:00 -11:00 - WST # Solomon Is diff -r -c old/localtime.c new/localtime.c *** old/localtime.c Mon Sep 27 09:24:26 2010 --- new/localtime.c Tue Oct 12 12:36:51 2010 *************** *** 5,11 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 8.14"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 5,11 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 8.15"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 914,919 **** --- 914,920 ---- register unsigned char * typep; register char * cp; register int load_result; + static struct ttinfo zttinfo; INITIALIZE(dstname); stdname = name; *************** *** 986,991 **** --- 987,993 ---- /* ** Two transitions per year, from EPOCH_YEAR forward. */ + sp->ttis[0] = sp->ttis[1] = zttinfo; sp->ttis[0].tt_gmtoff = -dstoffset; sp->ttis[0].tt_isdst = 1; sp->ttis[0].tt_abbrind = stdlen + 1; *************** *** 1099,1106 **** } /* ** Finally, fill in ttis. - ** ttisstd and ttisgmt need not be handled. */ sp->ttis[0].tt_gmtoff = -stdoffset; sp->ttis[0].tt_isdst = FALSE; sp->ttis[0].tt_abbrind = 0; --- 1101,1108 ---- } /* ** Finally, fill in ttis. */ + sp->ttis[0] = sp->ttis[1] = zttinfo; sp->ttis[0].tt_gmtoff = -stdoffset; sp->ttis[0].tt_isdst = FALSE; sp->ttis[0].tt_abbrind = 0; *************** *** 1113,1118 **** --- 1115,1121 ---- dstlen = 0; sp->typecnt = 1; /* only standard time */ sp->timecnt = 0; + sp->ttis[0] = zttinfo; sp->ttis[0].tt_gmtoff = -stdoffset; sp->ttis[0].tt_isdst = 0; sp->ttis[0].tt_abbrind = 0; diff -r -c old/zic.c new/zic.c *** old/zic.c Mon Sep 27 09:24:26 2010 --- new/zic.c Tue Oct 12 13:37:29 2010 *************** *** 3,9 **** ** 2006-07-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zic.c 8.22"; #include "private.h" #include "locale.h" --- 3,9 ---- ** 2006-07-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zic.c 8.24"; #include "private.h" #include "locale.h" *************** *** 1881,1896 **** register int week; if (rp->r_dycode == DC_DOWGEQ) { ! week = 1 + rp->r_dayofmonth / DAYSPERWEEK; ! if ((week - 1) * DAYSPERWEEK + 1 != rp->r_dayofmonth) return -1; } else if (rp->r_dycode == DC_DOWLEQ) { if (rp->r_dayofmonth == len_months[1][rp->r_month]) week = 5; else { ! week = 1 + rp->r_dayofmonth / DAYSPERWEEK; ! if (week * DAYSPERWEEK - 1 != rp->r_dayofmonth) return -1; } } else return -1; /* "cannot happen" */ (void) sprintf(result, "M%d.%d.%d", --- 1881,1896 ---- register int week; if (rp->r_dycode == DC_DOWGEQ) { ! if ((rp->r_dayofmonth % DAYSPERWEEK) != 1) return -1; + week = 1 + rp->r_dayofmonth / DAYSPERWEEK; } else if (rp->r_dycode == DC_DOWLEQ) { if (rp->r_dayofmonth == len_months[1][rp->r_month]) week = 5; else { ! if ((rp->r_dayofmonth % DAYSPERWEEK) != 0) return -1; + week = rp->r_dayofmonth / DAYSPERWEEK; } } else return -1; /* "cannot happen" */ (void) sprintf(result, "M%d.%d.%d", *************** *** 2018,2023 **** --- 2018,2024 ---- register char * envvar; register int max_abbr_len; register int max_envvar_len; + register int prodstic; /* all rules are min to max */ max_abbr_len = 2 + max_format_len + max_abbrvar_len; max_envvar_len = 2 * max_abbr_len + 5 * 9; *************** *** 2032,2037 **** --- 2033,2039 ---- timecnt = 0; typecnt = 0; charcnt = 0; + prodstic = zonecount == 1; /* ** Thanks to Earl Chew ** for noting the need to unconditionally initialize startttisstd. *************** *** 2053,2058 **** --- 2055,2062 ---- updateminmax(rp->r_loyear); if (rp->r_hiwasnum) updateminmax(rp->r_hiyear); + if (rp->r_lowasnum || rp->r_hiwasnum) + prodstic = FALSE; } } /* *************** *** 2075,2080 **** --- 2079,2094 ---- if (max_year <= INT_MAX - YEARSPERREPEAT) max_year += YEARSPERREPEAT; else max_year = INT_MAX; + /* + ** Regardless of any of the above, + ** for a "proDSTic" zone which specifies that its rules + ** always have and always will be in effect, + ** we only need one cycle to define the zone. + */ + if (prodstic) { + min_year = 1900; + max_year = min_year + YEARSPERREPEAT; + } } /* ** For the benefit of older systems,

5 6

Brazilian state of Goiás may abolish DST
by World Time Zone 27 Apr '19

27 Apr '19

According to some news Brazilian state of Goiás may abolish DST: "The Energy and Mines Commission of the House of Representatives approved a Legislative Decree that suspends daylight saving time in Goiás." http://www.infomoney.com.br/minhas-financas/consumo/noticia/7061178/comissa… Also, ".... this year the federal government even considered not implementing daylight saving time, but left the decision to 2018." Alexander Krivenyshev https://www.WorldTimeZone.com

5 5

[PATCH] Support building zic.exe and zdump.exe natively on Windows with Visual Studio nmake.
by Manuela Friedrich 28 Oct '18

28 Oct '18

Provide getopt() implementation for Windows as per ftp://ftp.es.ele.tue.nl/pub/users/jos/poster/getopt.c In localtime.c use native localtime(), gmtime(), ctime() and mktime(). Also use int or __int64 respectively for ssize_t type and check for Windows drive letters in tzloadbody(). In private.h and zdump.c define strotimax depending on Visual Studio version. It needs to be strtol for up to VS 2010 and stroll for higher versions. In zdump.c need prototype for gmtime_r() to suffice return type requirements. Also use __time64_t variables on Windows instead of time_t. In main() variable declarations had to be moved to the top to avoid compile errors. In zic.c dolink() need to have an extra mkdirs() call for Windows as we don't have link support here and the previous mkdirs() calls wouldn't have been called therefore. Also itsdir() needs separate Windows part to check for directory flag as the namesslashdot Linux alternative alway returns directory on Windows. Add nmake specific Makefile.nmake based on existing Makefile. It uses different object, library and executable extensions, sets CC and CFLAGS for 64 and 32bit Windows build. Target root has been added to build zdump and zic. Version and version.h rules were changed to batch. --- Makefile.nmake | 934 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ getopt.c | 110 +++++++ localtime.c | 23 ++ private.h | 4 + zdump.c | 47 ++- zic.c | 14 + 6 files changed, 1128 insertions(+), 4 deletions(-) create mode 100644 Makefile.nmake create mode 100644 getopt.c diff --git a/Makefile.nmake b/Makefile.nmake new file mode 100644 index 0000000..730523e --- /dev/null +++ b/Makefile.nmake @@ -0,0 +1,934 @@ +# This file is in the public domain, so clarified as of +# 2009-05-17 by Arthur David Olson. + +# This file supports building zic.exe and zdump.exe with Visual Studio nmake + +# Package name for the code distribution. +PACKAGE= tzcode + +# Version number for the distribution, overridden in the 'tarballs' rule below. +VERSION= unknown + +# Email address for bug reports. +BUGEMAIL= tz(a)iana.org + +# Change the line below for your time zone (after finding the zone you want in +# the time zone files, or adding it to a time zone file). +# Alternately, if you discover you've got the wrong time zone, you can just +# zic -l rightzone +# to correct things. +# Use the command +# make zonenames +# to get a list of the values you can use for LOCALTIME. + +LOCALTIME= GMT + +# If you want something other than Eastern United States time as a template +# for handling POSIX-style time zone environment variables, +# change the line below (after finding the zone you want in the +# time zone files, or adding it to a time zone file). +# (When a POSIX-style environment variable is handled, the rules in the +# template file are used to determine "spring forward" and "fall back" days and +# times; the environment variable itself specifies UT offsets of standard and +# summer time.) +# Alternately, if you discover you've got the wrong time zone, you can just +# zic -p rightzone +# to correct things. +# Use the command +# make zonenames +# to get a list of the values you can use for POSIXRULES. +# If you want POSIX compatibility, use "America/New_York". + +POSIXRULES= America/New_York + +# Also see TZDEFRULESTRING below, which takes effect only +# if the time zone files cannot be accessed. + + +# Installation locations. +# +# The defaults are suitable for Debian, except that if REDO is +# posix_right or right_posix then files that Debian puts under +# /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead +# put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps, +# respectively. Problems with the Debian approach are discussed in +# the commentary for the right_posix rule (below). + +# Destination directory, which can be used for staging. +# 'make DESTDIR=/stage install' installs under /stage (e.g., to +# /stage/etc/localtime instead of to /etc/localtime). Files under +# /stage are not intended to work as-is, but can be copied by hand to +# the root directory later. If DESTDIR is empty, 'make install' does +# not stage, but installs directly into production locations. +DESTDIR = + +# Everything is installed into subdirectories of TOPDIR, and used there. +# TOPDIR should be empty (meaning the root directory), +# or a directory name that does not end in "/". +# TOPDIR should be empty or an absolute name unless you're just testing. +TOPDIR = + +# The default local time zone is taken from the file TZDEFAULT. +TZDEFAULT = $(TOPDIR)/etc/localtime + +# The subdirectory containing installed program and data files, and +# likewise for installed files that can be shared among architectures. +# These should be relative file names. +USRDIR = usr +USRSHAREDIR = $(USRDIR)/share + +# "Compiled" time zone information is placed in the "TZDIR" directory +# (and subdirectories). +# TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty. +TZDIR_BASENAME= zoneinfo +TZDIR = $(TOPDIR)\\$(USRSHAREDIR)\\$(TZDIR_BASENAME) + +# The "tzselect" and (if you do "make INSTALL") "date" commands go in: +BINDIR = $(TOPDIR)/$(USRDIR)/bin + +# The "zdump" command goes in: +ZDUMPDIR = $(BINDIR) + +# The "zic" command goes in: +ZICDIR = $(TOPDIR)/$(USRDIR)/sbin + +# Manual pages go in subdirectories of. . . +MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man + +# Library functions are put in an archive in LIBDIR. +LIBDIR = $(TOPDIR)/$(USRDIR)/lib + + +# Types to try, as an alternative to time_t. int64_t should be first. +TIME_T_ALTERNATIVES = int64_t int32_t uint32_t uint64_t + +# If you want only POSIX time, with time values interpreted as +# seconds since the epoch (not counting leap seconds), use +# REDO= posix_only +# below. If you want only "right" time, with values interpreted +# as seconds since the epoch (counting leap seconds), use +# REDO= right_only +# below. If you want both sets of data available, with leap seconds not +# counted normally, use +# REDO= posix_right +# below. If you want both sets of data available, with leap seconds counted +# normally, use +# REDO= right_posix +# below. POSIX mandates that leap seconds not be counted; for compatibility +# with it, use "posix_only" or "posix_right". Use POSIX time on systems with +# leap smearing; this can work better than unsmeared "right" time with +# applications that are not leap second aware, and is closer to unsmeared +# "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error). + +REDO= posix_right + +# To install data in text form that has all the information of the binary data, +# (optionally incorporating leap second information), use +# TZDATA_TEXT= tzdata.zi leapseconds +# To install text data without leap second information (e.g., because +# REDO='posix_only'), use +# TZDATA_TEXT= tzdata.zi +# To avoid installing text data, use +# TZDATA_TEXT= + +TZDATA_TEXT= leapseconds tzdata.zi + +# For backward-compatibility links for old zone names, use +# BACKWARD= backward +# If you also want the link US/Pacific-New, even though it is confusing +# and is planned to be removed from the database eventually, use +# BACKWARD= backward pacificnew +# To omit these links, use +# BACKWARD= + +BACKWARD= backward + +# If you want out-of-scope and often-wrong data from the file 'backzone', use +# PACKRATDATA= backzone +# To omit this data, use +# PACKRATDATA= + +PACKRATDATA= + +# The name of a locale using the UTF-8 encoding, used during self-tests. +# The tests are skipped if the name does not appear to work on this system. + +UTF8_LOCALE= en_US.utf8 + +# Since "." may not be in PATH... + +YEARISTYPE= ./yearistype + +# Non-default libraries needed to link. +LDLIBS= + +# Add the following to the end of the "CFLAGS=" line as needed to override +# defaults specified in the source code. "-DFOO" is equivalent to "-DFOO=1". +# -DBIG_BANG=-9999999LL if the Big Bang occurred at time -9999999 (see zic.c) +# -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime +# formats that generate only the last two digits of year numbers +# -DEPOCH_LOCAL if the 'time' function returns local time not UT +# -DEPOCH_OFFSET=N if the 'time' function returns a value N greater +# than what POSIX specifies, assuming local time is UT. +# For example, N is 252460800 on AmigaOS. +# -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r +# -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ' +# -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows) +# -DHAVE_GENERIC=0 if _Generic does not work +# -DHAVE_GETTEXT if 'gettext' works (e.g., GNU/Linux, FreeBSD, Solaris) +# -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares +# ctime_r and asctime_r incompatibly with the POSIX standard +# (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined). +# -DHAVE_INTTYPES_H if you have a non-C99 compiler with <inttypes.h> +# -DHAVE_LINK=0 if your system lacks a link function +# -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function +# -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz +# localtime_rz can make zdump significantly faster, but is nonstandard. +# -DHAVE_POSIX_DECLS=0 if your system's include files do not declare +# functions like 'link' or variables like 'tzname' required by POSIX +# -DHAVE_SNPRINTF=0 if your system lacks the snprintf function +# -DHAVE_STDBOOL_H if you have a non-C99 compiler with <stdbool.h> +# -DHAVE_STDINT_H if you have a non-C99 compiler with <stdint.h> +# -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l +# -DHAVE_STRDUP=0 if your system lacks the strdup function +# -DHAVE_SYMLINK=0 if your system lacks the symlink function +# -DHAVE_SYS_STAT_H=0 if your compiler lacks a <sys/stat.h> +# -DHAVE_SYS_WAIT_H=0 if your compiler lacks a <sys/wait.h> +# -DHAVE_TZSET=0 if your system lacks a tzset function +# -DHAVE_UNISTD_H=0 if your compiler lacks a <unistd.h> +# -Dlocale_t=XXX if your system uses XXX instead of locale_t +# -Dssize_t=long on hosts like MS-Windows that lack ssize_t +# -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires; +# not needed by the main-program tz code, which is single-threaded. +# Append other compiler flags as needed, e.g., -pthread on GNU/Linux. +# -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t +# This is intended for internal use only; it mangles external names. +# -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz" +# -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory; +# the default is system-supplied, typically "/usr/lib/locale" +# -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified +# DST transitions if the time zone files cannot be accessed +# -DUNINIT_TRAP if reading uninitialized storage can cause problems +# other than simply getting garbage data +# -DUSE_LTZ=0 to build zdump with the system time zone library +# Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below. +# -DZIC_MAX_ABBR_LEN_WO_WARN=3 +# (or some other number) to set the maximum time zone abbreviation length +# that zic will accept without a warning (the default is 6) +# $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking +# Select instrumentation via "make GCC_INSTRUMENT='whatever'". +GCC_INSTRUMENT = \ + -fsanitize=undefined -fsanitize-address-use-after-scope \ + -fsanitize-undefined-trap-on-error -fstack-protector +GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \ + $(GCC_INSTRUMENT) \ + -Wall -Wextra \ + -Walloc-size-larger-than=100000 -Warray-bounds=2 \ + -Wbad-function-cast -Wcast-align -Wdate-time \ + -Wdeclaration-after-statement -Wdouble-promotion \ + -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \ + -Winit-self -Wjump-misses-init -Wlogical-op \ + -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ + -Wold-style-definition -Woverlength-strings -Wpointer-arith \ + -Wshadow -Wshift-overflow=2 -Wstrict-prototypes -Wstringop-overflow=5 \ + -Wsuggest-attribute=const -Wsuggest-attribute=format \ + -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \ + -Wtrampolines -Wundef -Wuninitialized -Wunused \ + -Wvariadic-macros -Wvla -Wwrite-strings \ + -Wno-address -Wno-format-nonliteral -Wno-sign-compare \ + -Wno-type-limits -Wno-unused-parameter +# +# If your system has a "GMT offset" field in its "struct tm"s +# (or if you decide to add such a field in your system's "time.h" file), +# add the name to a define such as +# -DTM_GMTOFF=tm_gmtoff +# to the end of the "CFLAGS=" line. If not defined, the code attempts to +# guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this. +# Similarly, if your system has a "zone abbreviation" field, define +# -DTM_ZONE=tm_zone +# and define NO_TM_ZONE to suppress any guessing. These two fields are not +# required by POSIX, but are widely available on GNU/Linux and BSD systems. +# +# The next batch of options control support for external variables +# exported by tzcode. In practice these variables are less useful +# than TM_GMTOFF and TM_ZONE. However, most of them are standardized. +# # +# # To omit or support the external variable "tzname", add one of: +# # -DHAVE_TZNAME=0 +# # -DHAVE_TZNAME=1 +# # to the "CFLAGS=" line. "tzname" is required by POSIX 1988 and later. +# # If not defined, the code attempts to guess HAVE_TZNAME from other macros. +# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause +# # crashes when combined with some platforms' standard libraries, +# # presumably due to memory allocation issues. +# # +# # To omit or support the external variables "timezone" and "daylight", add +# # -DUSG_COMPAT=0 +# # -DUSG_COMPAT=1 +# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by +# # Unix Systems Group code and are required by POSIX 2008 (with XSI) and later. +# # If not defined, the code attempts to guess USG_COMPAT from other macros. +# # +# # To support the external variable "altzone", add +# # -DALTZONE +# # to the end of the "CFLAGS=" line; although "altzone" appeared in +# # System V Release 3.1 it has not been standardized. +# +# If you want functions that were inspired by early versions of X3J11's work, +# add +# -DSTD_INSPIRED +# to the end of the "CFLAGS=" line. This arranges for the functions +# "tzsetwall", "offtime", "timelocal", "timegm", "timeoff", +# "posix2time", and "time2posix" to be added to the time conversion library. +# "tzsetwall" is like "tzset" except that it arranges for local wall clock +# time (rather than the time specified in the TZ environment variable) +# to be used. +# "offtime" is like "gmtime" except that it accepts a second (long) argument +# that gives an offset to add to the time_t when converting it. +# "timelocal" is equivalent to "mktime". +# "timegm" is like "timelocal" except that it turns a struct tm into +# a time_t using UT (rather than local time as "timelocal" does). +# "timeoff" is like "timegm" except that it accepts a second (long) argument +# that gives an offset to use when converting to a time_t. +# "posix2time" and "time2posix" are described in an included manual page. +# X3J11's work does not describe any of these functions. +# Sun has provided "tzsetwall", "timelocal", and "timegm" in SunOS 4.0. +# These functions may well disappear in future releases of the time +# conversion package. +# +# If you don't want functions that were inspired by NetBSD, add +# -DNETBSD_INSPIRED=0 +# to the end of the "CFLAGS=" line. Otherwise, the functions +# "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the +# time library, and if STD_INSPIRED is also defined the functions +# "posix2time_z" and "time2posix_z" are added as well. +# The functions ending in "_z" (or "_rz") are like their unsuffixed +# (or suffixed-by-"_r") counterparts, except with an extra first +# argument of opaque type timezone_t that specifies the time zone. +# "tzalloc" allocates a timezone_t value, and "tzfree" frees it. +# +# If you want to allocate state structures in localtime, add +# -DALL_STATE +# to the end of the "CFLAGS=" line. Storage is obtained by calling malloc. +# +# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put +# out by the National Institute of Standards and Technology +# which claims to test C and Posix conformance. If you want to pass PCTS, add +# -DPCTS +# to the end of the "CFLAGS=" line. +# +# If you want strict compliance with XPG4 as of 1994-04-09, add +# -DXPG4_1994_04_09 +# to the end of the "CFLAGS=" line. This causes "strftime" to always return +# 53 as a week number (rather than 52 or 53) for January days before +# January's first Monday when a "%V" format is used and January 1 +# falls on a Friday, Saturday, or Sunday. + +!IF "$(CPU)" == "AMD64" +CFLAGS=/Zi -DHAVE_SYS_WAIT_H=0 -DHAVE_UNISTD_H=0 -DHAVE_INTTYPES_H=0 -DHAVE_POSIX_DECLS=0 -DHAVE_LINK=0 -DHAVE_SYMLINK=0 -DTYPECHECK=1 -DHAVE_DECL_ASCTIME_R=0 +!ELSE +CFLAGS=/Zi -DHAVE_SYS_WAIT_H=0 -DHAVE_UNISTD_H=0 -DHAVE_INTTYPES_H=0 -DHAVE_POSIX_DECLS=0 -DHAVE_LINK=0 -DHAVE_SYMLINK=0 -DSTD_INSPIRED -DTYPECHECK=1 -DHAVE_DECL_ASCTIME_R=0 +!ENDIF + +# Linker flags. Default to $(LFLAGS) for backwards compatibility +# to release 2012h and earlier. + +LDFLAGS= $(LFLAGS) + +# For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in +# submake command lines. The default is no leap seconds. + +LEAPSECONDS= + +# The zic command and its arguments. + +zic= ./zic.exe +ZIC= $(zic) $(ZFLAGS) + +ZFLAGS= + +# How to use zic to install tz binary files. + +ZIC_INSTALL= $(ZIC) -d '$(DESTDIR)$(TZDIR)' $(LEAPSECONDS) + +# The name of a Posix-compliant 'awk' on your system. +AWK= awk + +# The full path name of a Posix-compliant shell, preferably one that supports +# the Korn shell's 'select' statement as an extension. +# These days, Bash is the most popular. +# It should be OK to set this to /bin/sh, on platforms where /bin/sh +# lacks 'select' or doesn't completely conform to Posix, but /bin/bash +# is typically nicer if it works. +KSHELL= /bin/bash + +# The path where SGML DTDs are kept and the catalog file(s) to use when +# validating. The default should work on both Debian and Red Hat. +SGML_TOPDIR= /usr +SGML_DTDDIR= $(SGML_TOPDIR)/share/xml/w3c-sgml-lib/schema/dtd +SGML_SEARCH_PATH= $(SGML_DTDDIR)/REC-html401-19991224 +SGML_CATALOG_FILES= \ + $(SGML_TOPDIR)/share/doc/w3-recs/html/www.w3.org/TR/1999/REC-html401-19991224/HTML4.cat:$(SGML_TOPDIR)/share/sgml/html/4.01/HTML4.cat + +# The name, arguments and environment of a program to validate your web pages. +# See <http://openjade.sourceforge.net/doc/> for a validator, and +# <https://validator.w3.org/source/> for a validation library. +# Set VALIDATE=':' if you do not have such a program. +VALIDATE = nsgmls +VALIDATE_FLAGS = -s -B -wall -wno-unused-param +VALIDATE_ENV = \ + SGML_CATALOG_FILES='$(SGML_CATALOG_FILES)' \ + SGML_SEARCH_PATH='$(SGML_SEARCH_PATH)' \ + SP_CHARSET_FIXED=YES \ + SP_ENCODING=UTF-8 + +# This expensive test requires USE_LTZ. +# To suppress it, define this macro to be empty. +CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives + +# SAFE_CHAR is a regular expression that matches a safe character. +# Some parts of this distribution are limited to safe characters; +# others can use any UTF-8 character. +# For now, the safe characters are a safe subset of ASCII. +# The caller must set the shell variable 'sharp' to the character '#', +# since Makefile macros cannot contain '#'. +# TAB_CHAR is a single tab character, in single quotes. +TAB_CHAR= ' ' +SAFE_CHARSET1= $(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@' +SAFE_CHARSET2= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`' +SAFE_CHARSET3= 'abcdefghijklmnopqrstuvwxyz{|}~' +SAFE_CHARSET= $(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3) +SAFE_CHAR= '[]'$(SAFE_CHARSET)'-]' + +# OK_CHAR matches any character allowed in the distributed files. +# This is the same as SAFE_CHAR, except that multibyte letters are +# also allowed so that commentary can contain people's names and quote +# non-English sources. For non-letters the sources are limited to +# ASCII renderings for the convenience of maintainers whose text editors +# mishandle UTF-8 by default (e.g., XEmacs 21.4.22). +OK_CHAR= '[][:alpha:]'$(SAFE_CHARSET)'-]' + +# SAFE_LINE matches a line of safe characters. +# SAFE_SHARP_LINE is similar, except any OK character can follow '#'; +# this is so that comments can contain non-ASCII characters. +# OK_LINE matches a line of OK characters. +SAFE_LINE= '^'$(SAFE_CHAR)'*$$' +SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$' +OK_LINE= '^'$(OK_CHAR)'*$$' + +# Flags to give 'tar' when making a distribution. +# Try to use flags appropriate for GNU tar. +GNUTARFLAGS= --numeric-owner --owner=0 --group=0 --mode=go+u,go-w --sort=name +TARFLAGS= `if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; \ + then echo $(GNUTARFLAGS); \ + else :; \ + fi` + +# Flags to give 'gzip' when making a distribution. +GZIPFLAGS= -9n + +############################################################################### + +#MAKE= make + +cc= cl +CC= $(cc) -DTZDIR=\"$(TZDIR)\" + +AR= lib + +# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib. +RANLIB= : + +TZCOBJS= zic.obj getopt.obj +TZDOBJS= zdump.obj localtime.obj asctime.obj getopt.obj strftime.obj +DATEOBJS= date.obj localtime.obj strftime.obj asctime.obj +LIBSRCS= localtime.c asctime.c difftime.c +LIBOBJS= localtime.obj asctime.obj difftime.obj +HEADERS= tzfile.h private.h +NONLIBSRCS= zic.c zdump.c +NEWUCBSRCS= date.c strftime.c +SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \ + tzselect.ksh workman.sh +MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \ + tzfile.5 tzselect.8 zic.8 zdump.8 +MANTXTS= newctime.3.txt newstrftime.3.txt newtzset.3.txt \ + time2posix.3.txt \ + tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \ + date.1.txt +COMMON= calendars CONTRIBUTING LICENSE Makefile \ + NEWS README theory.html version +WEB_PAGES= tz-art.html tz-how-to.html tz-link.html +DOCS= $(MANS) date.1 $(MANTXTS) $(WEB_PAGES) +PRIMARY_YDATA= africa antarctica asia australasia \ + europe northamerica southamerica +YDATA= $(PRIMARY_YDATA) etcetera +NDATA= systemv factory +TDATA_TO_CHECK= $(YDATA) $(NDATA) backward pacificnew +TDATA= $(YDATA) $(NDATA) $(BACKWARD) +ZONETABLES= zone1970.tab zone.tab +TABDATA= iso3166.tab $(TZDATA_TEXT) $(ZONETABLES) +LEAP_DEPS= leapseconds.awk leap-seconds.list +TZDATA_ZI_DEPS= zishrink.awk version $(TDATA) $(PACKRATDATA) +DATA= $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \ + leapseconds yearistype.sh $(ZONETABLES) +AWK_SCRIPTS= checklinks.awk checktab.awk leapseconds.awk zishrink.awk +MISC= $(AWK_SCRIPTS) zoneinfo2tdf.pl +TZS_YEAR= 2050 +TZS= to$(TZS_YEAR).tzs +TZS_NEW= to$(TZS_YEAR)new.tzs +TZS_DEPS= $(PRIMARY_YDATA) asctime.c localtime.c \ + private.h tzfile.h zdump.c zic.c +ENCHILADA= $(COMMON) $(DOCS) $(SOURCES) $(DATA) $(MISC) $(TZS) tzdata.zi + +# Consult these files when deciding whether to rebuild the 'version' file. +# This list is not the same as the output of 'git ls-files', since +# .gitignore is not distributed. +VERSION_DEPS= \ + calendars CONTRIBUTING LICENSE Makefile NEWS README \ + africa antarctica asctime.c asia australasia \ + backward backzone \ + checklinks.awk checktab.awk \ + date.1 date.c difftime.c \ + etcetera europe factory iso3166.tab \ + leap-seconds.list leapseconds.awk localtime.c \ + newctime.3 newstrftime.3 newtzset.3 northamerica \ + pacificnew private.h \ + southamerica strftime.c systemv theory.html \ + time2posix.3 tz-art.html tz-how-to.html tz-link.html \ + tzfile.5 tzfile.h tzselect.8 tzselect.ksh \ + workman.sh yearistype.sh \ + zdump.8 zdump.c zic.8 zic.c \ + zone.tab zone1970.tab zoneinfo2tdf.pl + +# And for the benefit of csh users on systems that assume the user +# shell should be used to handle commands in Makefiles. . . + +SHELL= /bin/sh + +root: zic.exe zdump.exe + +ALL: root date $(ENCHILADA) + +install: root $(DATA) $(REDO) $(MANS) + mkdir $(DESTDIR)$(ETCDIR) $(DESTDIR)$(TZDIR) \ + $(DESTDIR)$(LIBDIR) \ + $(DESTDIR)$(MANDIR)/man3 $(DESTDIR)$(MANDIR)/man5 \ + $(DESTDIR)$(MANDIR)/man8 + $(ZIC_INSTALL) -l $(LOCALTIME) -p $(POSIXRULES) \ + -t '$(DESTDIR)$(TZDEFAULT)' + cp -f $(TABDATA) $(DESTDIR)$(TZDIR)/. + cp tzselect $(DESTDIR)$(BINDIR)/. + cp zdump.exe $(DESTDIR)$(ZDUMPDIR)/. + cp zic.exe $(DESTDIR)$(ZICDIR)/. + cp libtz.lib $(DESTDIR)$(LIBDIR)/. + $(RANLIB) $(DESTDIR)$(LIBDIR)/libtz.lib + cp -f newctime.3 newtzset.3 $(DESTDIR)$(MANDIR)/man3/. + cp -f tzfile.5 $(DESTDIR)$(MANDIR)/man5/. + cp -f tzselect.8 zdump.8 zic.8 $(DESTDIR)$(MANDIR)/man8/. + +INSTALL: ALL install date.1 + mkdir -p $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man1 + cp date $(DESTDIR)$(BINDIR)/. + cp -f date.1 $(DESTDIR)$(MANDIR)/man1/. + +# for version get first token of git describe (e.g. 2018a from 2018a-5-g4a132ae) or $(VERSION) +# if version file is already present, i.e. downloaded from ftp, skip recreating it +version: $(VERSION_DEPS) +!IF [git describe > nul 2>&1] == 0 + if not exist version for /f "delims=-" %%a in ('git describe') do echo %%a > $@ +!ELSE + if not exist version echo $(VERSION) > $@ +!ENDIF + +# This file can be tailored by setting BACKWARD, PACKRATDATA, etc. +tzdata.zi: $(TZDATA_ZI_DEPS) + version=`sed 1q version` && \ + LC_ALL=C $(AWK) -v version="$$version" -f zishrink.awk \ + $(TDATA) $(PACKRATDATA) >$@.out + mv $@.out $@ + +version.h: version + echo static char const PKGVERSION[]="($(PACKAGE)) "; >$@ + for /F %%H in ('type version') do echo static char const TZVERSION[]="%%H"; >> $@ + echo static char const REPORT_BUGS_TO[]="$(BUGEMAIL)"; >>$@ + +zdump.exe: $(TZDOBJS) + $(CC) $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS) /link /out:$@ + +zic.exe: $(TZCOBJS) + $(CC) $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS) /link /out:$@ + +yearistype: yearistype.sh + cp yearistype.sh yearistype + chmod +x yearistype + +leapseconds: $(LEAP_DEPS) + $(AWK) -f leapseconds.awk leap-seconds.list >$@.out + mv $@.out $@ + +# Arguments to pass to submakes of install_data. +# They can be overridden by later submake arguments. +INSTALLARGS = \ + BACKWARD='$(BACKWARD)' \ + DESTDIR='$(DESTDIR)' \ + LEAPSECONDS='$(LEAPSECONDS)' \ + PACKRATDATA='$(PACKRATDATA)' \ + TZDEFAULT='$(TZDEFAULT)' \ + TZDIR='$(TZDIR)' \ + YEARISTYPE='$(YEARISTYPE)' \ + ZIC='$(ZIC)' + +# 'make install_data' installs one set of tz binary files. +install_data: zic.exe leapseconds yearistype tzdata.zi + $(ZIC_INSTALL) tzdata.zi + +posix_only: + $(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data + +right_only: + $(MAKE) $(INSTALLARGS) LEAPSECONDS='-L leapseconds' \ + install_data + +# In earlier versions of this makefile, the other two directories were +# subdirectories of $(TZDIR). However, this led to configuration errors. +# For example, with posix_right under the earlier scheme, +# TZ='right/Australia/Adelaide' got you localtime with leap seconds, +# but gmtime without leap seconds, which led to problems with applications +# like sendmail that subtract gmtime from localtime. +# Therefore, the other two directories are now siblings of $(TZDIR). +# You must replace all of $(TZDIR) to switch from not using leap seconds +# to using them, or vice versa. +right_posix: right_only + rm -fr '$(DESTDIR)$(TZDIR)-leaps' + ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \ + $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only + $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only + +posix_right: posix_only + rm -fr '$(DESTDIR)$(TZDIR)-posix' + ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \ + $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only + $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only + +# This obsolescent rule is present for backwards compatibility with +# tz releases 2014g through 2015g. It should go away eventually. +posix_packrat: + $(MAKE) $(INSTALLARGS) PACKRATDATA=backzone posix_only + +zones: $(REDO) + +$(TZS_NEW): tzdata.zi zdump zic + mkdir -p tzs.dir + $(zic) -d tzs.dir tzdata.zi + $(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \ + tzdata.zi | LC_ALL=C sort >$@.out + wd=`pwd` && \ + zones=`$(AWK) -v wd="$$wd" \ + '/^Z/{print wd "/tzs.dir/" $$2}' tzdata.zi \ + | LC_ALL=C sort` && \ + ./zdump -i -c $(TZS_YEAR) $$zones >>$@.out + sed 's,^TZ=".*tzs\.dir/,TZ=",' $@.out >$@.sed.out + rm -fr tzs.dir $@.out + mv $@.sed.out $@ + +# If $(TZS) does not already exist (e.g., old-format tarballs), create it. +# If it exists but 'make check_tzs' fails, a maintainer should inspect the +# failed output and fix the inconsistency, perhaps by running 'make force_tzs'. +$(TZS): + $(MAKE) force_tzs + +force_tzs: $(TZS_NEW) + cp $(TZS_NEW) $(TZS) + +libtz.lib: $(LIBOBJS) + del $@ + $(AR) $@ $(LIBOBJS) + $(RANLIB) $@ + +date: $(DATEOBJS) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS) + +tzselect: tzselect.ksh version + VERSION=`cat version` && sed \ + -e 's|#!/bin/bash|#!$(KSHELL)|g' \ + -e 's|AWK=[^}]*|AWK=$(AWK)|g' \ + -e 's|$PKGVERSION$=.*|\1='\''($(PACKAGE)) '\''|' \ + -e 's|$REPORT_BUGS_TO$=.*|\1=$(BUGEMAIL)|' \ + -e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \ + -e 's|$TZVERSION$=.*|\1='"$$VERSION"'|' \ + <$@.ksh >$@.out + chmod +x $@.out + mv $@.out $@ + +check: check_character_set check_white_space check_links \ + check_name_lengths check_sorted \ + check_tables check_web check_zishrink check_tzs + +check_character_set: $(ENCHILADA) + test ! '$(UTF8_LOCALE)' || \ + ! printf 'A\304\200B\n' | \ + LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 || { \ + LC_ALL='$(UTF8_LOCALE)' && export LC_ALL && \ + sharp='#' && \ + ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \ + $(MISC) $(SOURCES) $(WEB_PAGES) \ + CONTRIBUTING LICENSE Makefile README \ + version tzdata.zi && \ + ! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \ + leapseconds yearistype.sh zone.tab && \ + ! grep -Env $(OK_LINE) $(ENCHILADA); \ + } + +check_white_space: $(ENCHILADA) + patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \ + ! grep -En "$$pat" $(ENCHILADA) + ! grep -n '[[:space:]]$$' \ + $$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list) + +PRECEDES_FILE_NAME = ^(Zone|Link[[:space:]]+[^[:space:]]+)[[:space:]]+ +FILE_NAME_COMPONENT_TOO_LONG = \ + $(PRECEDES_FILE_NAME)[^[:space:]]*[^/[:space:]]{15} + +check_name_lengths: $(TDATA_TO_CHECK) backzone + ! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \ + $(TDATA_TO_CHECK) backzone + +CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; } + +check_sorted: backward backzone iso3166.tab zone.tab zone1970.tab + $(AWK) '/^Link/ {print $$3}' backward | LC_ALL=C sort -cu + $(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu + $(AWK) '/^[^#]/ {print $$1}' iso3166.tab | LC_ALL=C sort -cu + $(AWK) '/^[^#]/ {print $$1}' zone.tab | LC_ALL=C sort -c + $(AWK) '/^[^#]/ {print substr($$0, 1, 2)}' zone1970.tab | \ + LC_ALL=C sort -c + $(AWK) '/^[^#]/ $(CHECK_CC_LIST)' zone1970.tab | \ + LC_ALL=C sort -cu + +check_links: checklinks.awk $(TDATA_TO_CHECK) + $(AWK) -f checklinks.awk $(TDATA_TO_CHECK) + $(AWK) -f checklinks.awk tzdata.zi + +check_tables: checktab.awk $(PRIMARY_YDATA) $(ZONETABLES) + for tab in $(ZONETABLES); do \ + $(AWK) -f checktab.awk -v zone_table=$$tab $(PRIMARY_YDATA) \ + || exit; \ + done + +check_tzs: $(TZS) $(TZS_NEW) + diff -u $(TZS) $(TZS_NEW) + +# This checks only the HTML 4.01 strict page. +# To check the the other pages, use <https://validator.w3.org/>. +check_web: tz-how-to.html + $(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) tz-how-to.html + +# Check that tzdata.zi generates the same binary data that its sources do. +check_zishrink: tzdata.zi zic leapseconds $(PACKRATDATA) $(TDATA) + for type in posix right; do \ + mkdir -p time_t.dir/$$type time_t.dir/$$type-shrunk && \ + case $$type in \ + right) leap='-L leapseconds';; \ + *) leap=;; \ + esac && \ + $(ZIC) $$leap -d time_t.dir/$$type $(TDATA) && \ + $(AWK) '/^Rule/' $(TDATA) | \ + $(ZIC) $$leap -d time_t.dir/$$type - $(PACKRATDATA) && \ + $(ZIC) $$leap -d time_t.dir/$$type-shrunk tzdata.zi && \ + diff -r time_t.dir/$$type time_t.dir/$$type-shrunk || exit; \ + done + rm -fr time_t.dir + +clean_misc: + del core *.obj *.out \ + date tzselect version.h zdump.exe zic.exe yearistype libtz.lib +clean: clean_misc + del *.dir tzdata.zi $(TZS_NEW) + +maintainer-clean: clean + @echo 'This command is intended for maintainers to use; it' + @echo 'deletes files that may need special tools to rebuild.' + rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.* + +names: + @echo $(ENCHILADA) + +public: check check_public $(CHECK_TIME_T_ALTERNATIVES) \ + tarballs signatures + +date.1.txt: date.1 +newctime.3.txt: newctime.3 +newstrftime.3.txt: newstrftime.3 +newtzset.3.txt: newtzset.3 +time2posix.3.txt: time2posix.3 +tzfile.5.txt: tzfile.5 +tzselect.8.txt: tzselect.8 +zdump.8.txt: zdump.8 +zic.8.txt: zic.8 + +$(MANTXTS): workman.sh + LC_ALL=C sh workman.sh `expr $@ : '$.*$\.txt$$'` >$@.out + mv $@.out $@ + +# Set the time stamps to those of the git repository, if available, +# and if the files have not changed since then. +# This uses GNU 'touch' syntax 'touch -d@N FILE', +# where N is the number of seconds since 1970. +# If git or GNU 'touch' is absent, don't bother to sync with git timestamps. +# Also, set the timestamp of each prebuilt file like 'leapseconds' +# to be the maximum of the files it depends on. +set-timestamps.out: $(ENCHILADA) + rm -f $@ + if (type git) >/dev/null 2>&1 && \ + files=`git ls-files $(ENCHILADA)` && \ + touch -md @1 test.out; then \ + rm -f test.out && \ + for file in $$files; do \ + if git diff --quiet $$file; then \ + time=`git log -1 --format='tformat:%ct' $$file` && \ + touch -cmd @$$time $$file; \ + else \ + echo >&2 "$$file: warning: does not match repository"; \ + fi || exit; \ + done; \ + fi + touch -cmr `ls -t $(LEAP_DEPS) | sed 1q` leapseconds + for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \ + touch -cmr `ls -t $$file workman.sh | sed 1q` $$file.txt || \ + exit; \ + done + touch -cmr `ls -t $(TZDATA_ZI_DEPS) | sed 1q` tzdata.zi + touch -cmr `ls -t $(TZS_DEPS) | sed 1q` $(TZS) + touch -cmr `ls -t $(VERSION_DEPS) | sed 1q` version + touch $@ + +# The zics below ensure that each data file can stand on its own. +# We also do an all-files run to catch links to links. + +check_public: + $(MAKE) maintainer-clean + $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' ALL + mkdir -p public.dir + for i in $(TDATA_TO_CHECK) tzdata.zi; do \ + $(zic) -v -d public.dir $$i 2>&1 || exit; \ + done + $(zic) -v -d public.dir $(TDATA_TO_CHECK) + rm -fr public.dir + +# Check that the code works under various alternative +# implementations of time_t. +check_time_t_alternatives: + if diff -q Makefile Makefile 2>/dev/null; then \ + quiet_option='-q'; \ + else \ + quiet_option=''; \ + fi && \ + wd=`pwd` && \ + zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab` && \ + for type in $(TIME_T_ALTERNATIVES); do \ + mkdir -p time_t.dir/$$type && \ + $(MAKE) clean_misc && \ + $(MAKE) TOPDIR="$$wd/time_t.dir/$$type" \ + CFLAGS='$(CFLAGS) -Dtime_tz='"'$$type'" \ + REDO='$(REDO)' \ + install && \ + diff $$quiet_option -r \ + time_t.dir/int64_t/etc \ + time_t.dir/$$type/etc && \ + diff $$quiet_option -r \ + time_t.dir/int64_t/usr/share \ + time_t.dir/$$type/usr/share && \ + case $$type in \ + int32_t) range=-2147483648,2147483647;; \ + uint32_t) range=0,4294967296;; \ + int64_t) continue;; \ + *u*) range=0,10000000000;; \ + *) range=-10000000000,10000000000;; \ + esac && \ + echo checking $$type zones ... && \ + time_t.dir/int64_t/usr/bin/zdump -V -t $$range $$zones \ + >time_t.dir/int64_t.out && \ + time_t.dir/$$type/usr/bin/zdump -V -t $$range $$zones \ + >time_t.dir/$$type.out && \ + diff -u time_t.dir/int64_t.out time_t.dir/$$type.out \ + || exit; \ + done + rm -fr time_t.dir + +tarballs traditional_tarballs signatures traditional_signatures: version + VERSION=`cat version` && \ + $(MAKE) VERSION="$$VERSION" $@_version + +tarballs_version: traditional_tarballs_version tzdb-$(VERSION).tar.lz +traditional_tarballs_version: \ + tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz +signatures_version: traditional_signatures_version tzdb-$(VERSION).tar.lz.asc +traditional_signatures_version: \ + tzcode$(VERSION).tar.gz.asc tzdata$(VERSION).tar.gz.asc \ + +tzcode$(VERSION).tar.gz: set-timestamps.out + LC_ALL=C && export LC_ALL && \ + tar $(TARFLAGS) -cf - \ + $(COMMON) $(DOCS) $(SOURCES) | \ + gzip $(GZIPFLAGS) >$@.out + mv $@.out $@ + +tzdata$(VERSION).tar.gz: set-timestamps.out + LC_ALL=C && export LC_ALL && \ + tar $(TARFLAGS) -cf - $(COMMON) $(DATA) $(MISC) | \ + gzip $(GZIPFLAGS) >$@.out + mv $@.out $@ + +tzdb-$(VERSION).tar.lz: set-timestamps.out + rm -fr tzdb-$(VERSION) + mkdir tzdb-$(VERSION) + ln $(ENCHILADA) tzdb-$(VERSION) + touch -cmr `ls -t tzdb-$(VERSION)/* | sed 1q` tzdb-$(VERSION) + LC_ALL=C && export LC_ALL && \ + tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out + mv $@.out $@ + +tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz + gpg --armor --detach-sign $? + +tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz + gpg --armor --detach-sign $? + +tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz + gpg --armor --detach-sign $? + +typecheck: + $(MAKE) clean + for i in "long long" unsigned; \ + do \ + $(MAKE) CFLAGS="-DTYPECHECK -D__time_t_defined -D_TIME_T \"-Dtime_t=$$i\"" ; \ + ./zdump -v Europe/Rome ; \ + $(MAKE) clean ; \ + done + +zonenames: tzdata.zi + @$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi + +asctime.obj: private.h tzfile.h +date.obj: private.h +difftime.obj: private.h +localtime.obj: private.h tzfile.h +strftime.obj: private.h tzfile.h +zdump.obj: version.h +zic.obj: private.h tzfile.h version.h +getopt.obj: +msvcrt.lib: + +.KEEP_STATE: + +.PHONY: ALL INSTALL root +.PHONY: check check_character_set check_links +.PHONY: check_public check_sorted check_tables +.PHONY: check_time_t_alternatives check_tzs check_web check_white_space +.PHONY: check_zishrink +.PHONY: clean clean_misc force_tzs +.PHONY: install install_data maintainer-clean names +.PHONY: posix_only posix_packrat posix_right +.PHONY: public right_only right_posix signatures signatures_version +.PHONY: tarballs tarballs_version typecheck +.PHONY: zonenames zones diff --git a/getopt.c b/getopt.c new file mode 100644 index 0000000..9608eae --- /dev/null +++ b/getopt.c @@ -0,0 +1,110 @@ +/* transcript/src/getopt.c + * + * public domain getopt from mod.sources + * RCSID: $Header: getopt.c,v 2.1 85/11/24 11:49:10 shore Rel $ + */ + +/* +** This is a public domain version of getopt(3). +** Bugs, fixes to: +** Keith Bostic +** ARPA: keith@seismo +** UUCP: seismo!keith +** Added NO_STDIO, opterr handling, Rich $alz (mirror!rs). +*/ + +#include <stdio.h> +#include <string.h> + +/* +** Error macro. Maybe we want stdio, maybe we don't. +** The (undocumented?) variable opterr tells us whether or not +** to print errors. +*/ + +#ifdef NO_STDIO + +#define tell(s) \ + if (opterr) \ + { \ + char ebuf[2]; \ + (void)write(2, nargv, (unsigned int)strlen(nargv)); \ + (void)write(2, s, (unsigned int)strlen(s)); \ + ebuf[0] = optopt; \ + ebuf[1] = '\n'; \ + (void)write(2, ebuf, 2); \ + } + +#else + +#define tell(s) \ + if (opterr) \ + (void)fputs(*nargv, stderr), \ + (void)fputs(s,stderr), \ + (void)fputc(optopt, stderr), \ + (void)fputc('\n', stderr) + +#endif + + +/* Global variables. */ +static char EMSG[] = ""; +int opterr = 1; /* undocumented error-suppressor*/ +int optind = 1; /* index into argv vector */ +int optopt; /* char checked for validity */ +char *optarg; /* arg associated with option */ + + + +getopt(nargc, nargv, ostr) + int nargc; + char **nargv; + char *ostr; +{ + static char *place = EMSG; /* option letter processing */ + register char *oli; /* option letter list index */ + + if (!*place) /* update scanning pointer */ + { + if (optind >= nargc || *(place = nargv[optind]) != '-' || !*++place) + return(EOF); + if (*place == '-') /* found "--" */ + { + optind++; + return(EOF); + } + } + /* option letter okay? */ + if ((optopt = *place++) == ':' || (oli = strchr(ostr, optopt)) == NULL) + { + if (!*place) + optind++; + tell(": illegal option -- "); + goto Bad; + } + if (*++oli != ':') /* don't need argument */ + { + optarg = NULL; + if (!*place) + optind++; + } + else /* need an argument */ + { + if (*place) + optarg = place; /* no white space */ + else + if (nargc <= ++optind) + { + place = EMSG; + tell(": option requires an argument -- "); + goto Bad; + } + else + optarg = nargv[optind]; /* white space */ + place = EMSG; + optind++; + } + return(optopt); /* dump back option letter */ +Bad: + return('?'); +} \ No newline at end of file diff --git a/localtime.c b/localtime.c index 9b8266a..06243dd 100644 --- a/localtime.c +++ b/localtime.c @@ -58,6 +58,14 @@ static void unlock(void) { } #define OPEN_MODE O_RDONLY #endif /* !defined O_BINARY */ +#ifdef _WIN32 +#ifdef _WIN64 +typedef unsigned __int64 ssize_t; +#else +typedef unsigned int ssize_t; +#endif +#endif + #ifndef WILDABBR /* ** Someone might make incorrect use of a time zone abbreviation: @@ -401,6 +409,13 @@ tzloadbody(char const *name, struct state *sp, bool doextend, if (name[0] == ':') ++name; doaccess = name[0] == '/'; +#ifdef _WIN32 + /* + ** DOS drive specifier? + */ + if (isalpha(name[0]) && name[1]==':' && name[2] == '\\') + doaccess = true; +#endif if (!doaccess) { size_t namelen = strlen(name); if (sizeof lsp->fullname - sizeof tzdirslash <= namelen) @@ -1529,11 +1544,13 @@ localtime_tzset(time_t const *timep, struct tm *tmp, bool setname) return tmp; } +#ifndef _WIN32 struct tm * localtime(const time_t *timep) { return localtime_tzset(timep, &tm, true); } +#endif struct tm * localtime_r(const time_t *timep, struct tm *tmp) @@ -1575,11 +1592,13 @@ gmtime_r(const time_t *timep, struct tm *tmp) return gmtsub(gmtptr, timep, 0, tmp); } +#ifndef _WIN32 struct tm * gmtime(const time_t *timep) { return gmtime_r(timep, &tm); } +#endif #ifdef STD_INSPIRED @@ -1724,6 +1743,7 @@ timesub(const time_t *timep, int_fast32_t offset, return NULL; } +#ifndef _WIN32 char * ctime(const time_t *timep) { @@ -1736,6 +1756,7 @@ ctime(const time_t *timep) struct tm *tmp = localtime(timep); return tmp ? asctime(tmp) : NULL; } +#endif char * ctime_r(const time_t *timep, char *buf) @@ -2155,6 +2176,7 @@ mktime_z(struct state *sp, struct tm *tmp) #endif +#ifndef _WIN32 time_t mktime(struct tm *tmp) { @@ -2169,6 +2191,7 @@ mktime(struct tm *tmp) unlock(); return t; } +#endif #ifdef STD_INSPIRED diff --git a/private.h b/private.h index 2e8415e..d460ca3 100644 --- a/private.h +++ b/private.h @@ -266,7 +266,11 @@ typedef int int_fast32_t; #ifndef INTMAX_MAX # ifdef LLONG_MAX typedef long long intmax_t; +# if _MSC_VER <= 1600 +# define strtoimax strtol +# else # define strtoimax strtoll +# endif # define INTMAX_MAX LLONG_MAX # define INTMAX_MIN LLONG_MIN # else diff --git a/zdump.c b/zdump.c index 60a027e..fc90662 100644 --- a/zdump.c +++ b/zdump.c @@ -4,6 +4,9 @@ */ #include "version.h" +#ifdef _WIN32 +#include <stdlib.h> +#endif /* ** This code has been made independent of the rest of the time @@ -22,6 +25,12 @@ #include "private.h" #include <stdio.h> +#if _MSC_VER <= 1600 +# define strtoimax strtol +#else +# define strtoimax strtoll +#endif + #ifndef HAVE_SNPRINTF # define HAVE_SNPRINTF (199901 <= __STDC_VERSION__) #endif @@ -181,6 +190,9 @@ gmtime_r(time_t *tp, struct tm *tmp) return r; } +#endif +#ifdef _WIN32 +struct tm * gmtime_r(time_t *tp, struct tm *tmp); #endif /* Platforms with TM_ZONE don't need tzname, so they can use the @@ -198,7 +210,11 @@ gmtime_r(time_t *tp, struct tm *tmp) # undef localtime_r # define localtime_r zdump_localtime_r static struct tm * +#ifdef _WIN32 +localtime_r(__time64_t *tp, struct tm *tmp) +#else localtime_r(time_t *tp, struct tm *tmp) +#endif { struct tm *r = localtime(tp); if (r) { @@ -212,7 +228,11 @@ localtime_r(time_t *tp, struct tm *tmp) # undef localtime_rz # define localtime_rz zdump_localtime_rz static struct tm * +#ifdef _WIN32 +localtime_rz(timezone_t rz, __time64_t *tp, struct tm *tmp) +#else localtime_rz(timezone_t rz, time_t *tp, struct tm *tmp) +#endif { return localtime_r(tp, tmp); } @@ -421,10 +441,22 @@ main(int argc, char *argv[]) register bool Vflag; register char * cutarg; register char * cuttimes; +#ifdef _WIN32 + register __time64_t cutlotime; + register __time64_t cuthitime; + __time64_t now; + __time64_t t; + __time64_t newt; +#else register time_t cutlotime; register time_t cuthitime; time_t now; + time_t t; + time_t newt; +#endif + struct tm * newtmp; bool iflag = false; + bool newtm_ok; cutlotime = absolute_min_time; cuthitime = absolute_max_time; @@ -531,7 +563,6 @@ main(int argc, char *argv[]) for (i = optind; i < argc; ++i) { timezone_t tz = tzalloc(argv[i]); char const *ab; - time_t t; struct tm tm, newtm; bool tm_ok; if (!tz) { @@ -562,12 +593,12 @@ main(int argc, char *argv[]) } } while (t < cuthitime) { - time_t newt = ((t < absolute_max_time - SECSPERDAY / 2 + newt = ((t < absolute_max_time - SECSPERDAY / 2 && t + SECSPERDAY / 2 < cuthitime) ? t + SECSPERDAY / 2 : cuthitime); - struct tm *newtmp = localtime_rz(tz, &newt, &newtm); - bool newtm_ok = newtmp != NULL; + newtmp = localtime_rz(tz, &newt, &newtm); + newtm_ok = newtmp != NULL; if (tm_ok != newtm_ok || (tm_ok && (delta(&newtm, &tm) != newt - t || newtm.tm_isdst != tm.tm_isdst @@ -605,11 +636,19 @@ main(int argc, char *argv[]) return EXIT_SUCCESS; } +#ifdef _WIN32 +static __time64_t +#else static time_t +#endif yeartot(intmax_t y) { register intmax_t myy, seconds, years; +#ifdef _WIN32 + register __time64_t t; +#else register time_t t; +#endif myy = EPOCH_YEAR; t = 0; diff --git a/zic.c b/zic.c index 304410f..11120ee 100644 --- a/zic.c +++ b/zic.c @@ -897,6 +897,11 @@ dolink(char const *fromfield, char const *tofield, bool staysymlink) mkdirs(tofield, true); symlink_errno = symlink(contents, tofield) == 0 ? 0 : errno; } +#ifdef _WIN32 + /* there is no link support on Windows */ + if (symlink_errno == ENOTSUP && !todirs_made) + mkdirs(tofield, true); +#endif free(linkalloc); if (symlink_errno == 0) { if (link_errno != ENOTSUP) @@ -986,6 +991,14 @@ itsdir(char const *name) if (res == 0) return S_ISDIR(st.st_mode) != 0; #endif +#ifdef _WIN32 + if (res == 0 ) { + if ((st.st_mode & 0170000) == 0040000) + return 1; + else + return 0; + } +#else if (res == 0 || errno == EOVERFLOW) { size_t n = strlen(name); char *nameslashdot = emalloc(n + 3); @@ -996,6 +1009,7 @@ itsdir(char const *name) free(nameslashdot); return dir; } +#endif return false; } -- 2.15.1.windows.2

4 16

Re: [tz] [IANA #985615] Sudan Time Zone change
by ahmed.atyya＠ntc.gov.sd 25 Jun '18

25 Jun '18

Dear Sir/ Madam we would like to inform you that the Republic of Sudan is going to change the time zone from (GMT + 3:00) to (GMT+ 2:00) starting from Wednesday 1 November 2017. this is for your information and action if required. Best Regards Dear Mr. Paul We would like to inform you as TZ coordinator that the Republic of Sudan is planning to change its time zone from GMT+ 3:00 to GMT +2:00 ( The original time zone ) starting from 1 November 2017 Please if you can update time zone data base Or you you can tell us what action is needed from Sudan government Best Regards Ahmed Atyya Head of Numbering Section National Telecomm. Corporation – Sudan Phone: +249123499988 Email: ahmed.atyya@ ----- Original Message ----- From: Sabrina Tanamal via RT <iana-questions(a)iana.org> To: ahmed atyya <ahmed.atyya(a)ntc.gov.sd> Sent: Tue, 17 Oct 2017 01:33:06 +0300 (EAT) Subject: [IANA #985615] Sudan Time Zone change Dear Ahmed, Thank you for contacting us. We host the Time Zone Database, but updates are made by the Time Zone Coordinator in consultation with the Time Zone mailing list, in accordance with RFC 6557. Questions about the contents of the database should be sent to the mailing list. For mailing list archives and subscription information, please see http://www.iana.org/time-zones Best regards, Sabrina Tanamal IANA Services Specialist On Mon Oct 16 09:55:06 2017, ahmed.atyya(a)ntc.gov.sd wrote: > Dear Sir/ Madam > > > > > > we would like to inform you that the Republic of Sudan is going to > change the time zone from (GMT + 3:00) to (GMT+ 2:00) starting from > Wednesday 1 November 2017. > > > this is for your information and action if required. > > > > > > Best Regards > > > > > > Ahmed Atyya > > > Head of Numbering Section > > National Telecomm. Corporation – Sudan > > Phone: +249123499988 > > Email: ahmed.atyya(a)ntc.gov.sd

6 19

wrong Europe/Dublin dst offset rule
by Vicky 30 May '18

30 May '18

Hi, while parsing the data i found the issue in rule Europe/Dublin Negative DST.. Previous version or not in any other file there is no negative dst. DST either start and end . # The following is like GB-Eire and EU, except with standard time in # summer and negative daylight saving time in winter. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Eire 1971 only - Oct 31 2:00u -1:00 GMT Rule Eire 1972 1980 - Mar Sun>=16 2:00u 0 IST Rule Eire 1972 1980 - Oct Sun>=23 2:00u -1:00 GMT Rule Eire 1981 max - Mar lastSun 1:00u 0 IST Rule Eire 1981 1989 - Oct Sun>=23 1:00u -1:00 GMT Rule Eire 1990 1995 - Oct Sun>=22 1:00u -1:00 GMT Rule Eire 1996 max - Oct lastSun 1:00u -1:00 GMT Please explain why -ve dst offset compared with other files. Regards, Vaibhav

5 6

[PROPOSED] Support zi parsers that mishandle negative DST offsets
by Paul Eggert 23 Apr '18

23 Apr '18

This is intended to provide a way to support both clients that require data to have only positive DST offsets, and clients that do not have this restriction. * Makefile (XDST, SDST): New macros. (TZDATA_ZI_DEPS): Add zidst.awk. (DSTDATA_ZI_DEPS): New macro. (all): Depend on fulldata.zi and pdstdata.zi. (fulldata.zi pdstdata.zi): New rule. (tzdata.zi): Use $(XDST)data.zi instead of reading original source. (check_zishrink): Check zidst.awk, too. (clean): Remove all *.zi files, not just tzdata.zi. * NEWS, europe: Mention this. * zidst.awk: New file. --- Makefile | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++----------- NEWS | 30 ++++++++++++++++++++++++++++++ europe | 39 ++++++++++++++++++++++----------------- zidst.awk | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 154 insertions(+), 28 deletions(-) create mode 100644 zidst.awk diff --git a/Makefile b/Makefile index 8c84cd9..92ddb80 100644 --- a/Makefile +++ b/Makefile @@ -10,6 +10,26 @@ VERSION= unknown # Email address for bug reports. BUGEMAIL= tz(a)iana.org +# To install the full data, which can contain daylight saving time +# offsets that are negative (relative to standard time), use +# XDST= full +# To install data containing only positive daylight saving time +# offsets, but otherwise as close to the full data as practical, use +# XDST= pdst +XDST= pdst +# Parsers requiring DST offsets to be positive should use the file +# pdstdata.zi, which contains almost all the data of 'africa' etc., +# except with positive DST offsets. This works around a problem that +# was discovered in January 2018 with negative DST in tests for ICU +# and OpenJDK. See: +# https://mm.icann.org/pipermail/tz/2018-January/025825.html +# https://mm.icann.org/pipermail/tz/2018-January/025822.html +# Currently the 'africa' etc. files use pdst form if comments are +# ignored, to ease transition for parsers that do not support +# negative DST offsets. This is intended to change to full form at +# some point, so that full-featured zi parsers that use the 'africa' +# files will get the full data without changing anything. + # Change the line below for your time zone (after finding the zone you want in # the time zone files, or adding it to a time zone file). # Alternately, if you discover you've got the wrong time zone, you can just @@ -463,7 +483,8 @@ TDATA= $(YDATA) $(NDATA) $(BACKWARD) ZONETABLES= zone1970.tab zone.tab TABDATA= iso3166.tab $(TZDATA_TEXT) $(ZONETABLES) LEAP_DEPS= leapseconds.awk leap-seconds.list -TZDATA_ZI_DEPS= zishrink.awk version $(TDATA) $(PACKRATDATA) +TZDATA_ZI_DEPS= zidst.awk zishrink.awk version $(TDATA) $(PACKRATDATA) +DSTDATA_ZI_DEPS= zidst.awk $(TDATA) $(PACKRATDATA) DATA= $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \ leapseconds yearistype.sh $(ZONETABLES) AWK_SCRIPTS= checklinks.awk checktab.awk leapseconds.awk zishrink.awk @@ -500,7 +521,8 @@ VERSION_DEPS= \ SHELL= /bin/sh -all: tzselect yearistype zic zdump libtz.a $(TABDATA) +all: tzselect yearistype zic zdump libtz.a $(TABDATA) \ + fulldata.zi pdstdata.zi ALL: all date $(ENCHILADA) @@ -535,11 +557,15 @@ version: $(VERSION_DEPS) printf '%s\n' "$$V" >$@.out mv $@.out $@ -# This file can be tailored by setting BACKWARD, PACKRATDATA, etc. -tzdata.zi: $(TZDATA_ZI_DEPS) +# These files can be tailored by setting BACKWARD, PACKRATDATA, etc. +fulldata.zi pdstdata.zi: $(DSTDATA_ZI_DEPS) + $(AWK) -v outfile='$@' -f zidst.awk $(TDATA) $(PACKRATDATA) \ + >$@.out + mv $@.out $@ +tzdata.zi: $(XDST)data.zi version version=`sed 1q version` && \ LC_ALL=C $(AWK) -v version="$$version" -f zishrink.awk \ - $(TDATA) $(PACKRATDATA) >$@.out + $(XDST)data.zi >$@.out mv $@.out $@ version.h: version @@ -721,17 +747,32 @@ check_tzs: $(TZS) $(TZS_NEW) check_web: tz-how-to.html $(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) tz-how-to.html -# Check that tzdata.zi generates the same binary data that its sources do. -check_zishrink: tzdata.zi zic leapseconds $(PACKRATDATA) $(TDATA) +# The format of the source files, either full or pdst. +# Currently they are in pdst format, but this is expected to change. +SDST = pdst + +# Check that zishrink.awk does not alter the data, and that zidst.awk +# preserves $(SDST) data. +check_zishrink: zic leapseconds $(PACKRATDATA) $(TDATA) \ + $(XDST)data.zi tzdata.zi for type in posix right; do \ - mkdir -p time_t.dir/$$type time_t.dir/$$type-shrunk && \ + mkdir -p time_t.dir/$$type time_t.dir/$$type-$(SDST) \ + time_t.dir/$$type-shrunk && \ case $$type in \ right) leap='-L leapseconds';; \ *) leap=;; \ esac && \ - $(ZIC) $$leap -d time_t.dir/$$type $(TDATA) && \ - $(AWK) '/^Rule/' $(TDATA) | \ + $(ZIC) $$leap -d time_t.dir/$$type $(XDST)data.zi && \ + $(AWK) '/^Rule/' $(XDST)data.zi | \ $(ZIC) $$leap -d time_t.dir/$$type - $(PACKRATDATA) && \ + case $(XDST) in \ + $(SDST)) \ + $(ZIC) $$leap -d time_t.dir/$$type-$(SDST) $(TDATA) && \ + $(AWK) '/^Rule/' $(TDATA) | \ + $(ZIC) $$leap -d time_t.dir/$$type-$(SDST) \ + $(XDST)data.zi && \ + diff -r time_t.dir/$$type time_t.dir/$$type-$(SDST);; \ + esac && \ $(ZIC) $$leap -d time_t.dir/$$type-shrunk tzdata.zi && \ diff -r time_t.dir/$$type time_t.dir/$$type-shrunk || exit; \ done @@ -741,7 +782,7 @@ clean_misc: rm -f core *.o *.out \ date tzselect version.h zdump zic yearistype libtz.a clean: clean_misc - rm -fr *.dir tzdata.zi tzdb-*/ $(TZS_NEW) + rm -fr *.dir *.zi tzdb-*/ $(TZS_NEW) maintainer-clean: clean @echo 'This command is intended for maintainers to use; it' diff --git a/NEWS b/NEWS index 4f763c0..c455f3c 100644 --- a/NEWS +++ b/NEWS @@ -2,6 +2,36 @@ News for the tz database Unreleased, experimental changes + Briefly: + Support zi parsers that mishandle negative DST offsets + + Changes to build procedure + + The new XDST macro in the Makefile lets the installer choose + XDST=full, which allows arbitrary DST offsets in the data, or + XDST=pdst, which allows only positive DST offsets. Choosing + XDST=full is arguably more correct for Ireland, which observes + Irish Standard Time (IST, UTC+01) in summer and GMT (UTC) in + winter. Choosing XDST=pdst is better for zoneinfo parsers that do + not work well with negative DST offsets, notably OpenJDK+CLDR. + On platforms using tzcode or similar APIs, XDST should not affect + any behavior other than that depending on the tm_isdst flag. + + For now this change does not affect client-visible behavior by + default, as the Makefile defaults to XDST=pdst and uncommented + parts of the data source files contain only pdst-format data. + After a bit of time for testing, XDST=full and full-format source + files are planned to become the default, so that parsers that + support negative DST offsets can get full data without changing + their build procedures. Parsers requiring positive DST offsets + should use the new file pdstdata.zi instead of tzdata.zi or the + source files 'africa' etc.: pdstdata.zi is pdst-compatible, it is + automatically built from the data source files, and it will + continue to be pdst-compatible regardless of XDST. To get + full-format data now, use the new file fulldata.zi, which will + continue to be full-format regardless of XDST. To get the format + selected by XDST, use tzdata.zi. + Changes to code The code is a bit more portable to MS-Windows. (Thanks to Manuela diff --git a/europe b/europe index 6c1ccbe..5aeda33 100644 --- a/europe +++ b/europe @@ -508,11 +508,27 @@ Link Europe/London Europe/Jersey Link Europe/London Europe/Guernsey Link Europe/London Europe/Isle_of_Man -# From Paul Eggert (2018-01-19): +# From Paul Eggert (2018-01-30): +# In January 2018 we discovered that the negative DST offsets in the +# Eire rules cause problems with tests for ICU: +# https://mm.icann.org/pipermail/tz/2018-January/025825.html +# and with tests for OpenJDK: +# https://mm.icann.org/pipermail/tz/2018-January/025822.html +# To work around this problem, zidst.awk translates the following data +# lines into two forms. First, fulldata.zi contains the full data, +# which includes negative DST offsets. Second, pdstdata.zi uses a +# traditional approximation for Irish time stamps after 1971-10-31 +# 02:00 UTC; although this approximation has tm_isdst flags that are +# the reverse of the full data, its UTC offsets are correct and this +# suffices for ICU and OpenJDK. Although this source file currently +# has pdstdata.zi lines active and fulldata.zi lines commented out, +# this is intended to change in the near future and downstream code +# should not rely on it. +# # The following is like GB-Eire and EU, except with standard time in # summer and negative daylight saving time in winter. -# Although currently commented out, this will need to become uncommented -# once the ICU/OpenJDK workaround is removed; see below. +# This rule set is active in fulldata.zi and is commented out in +# pdstdata.zi. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S #Rule Eire 1971 only - Oct 31 2:00u -1:00 GMT #Rule Eire 1972 1980 - Mar Sun>=16 2:00u 0 IST @@ -533,24 +549,13 @@ Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2 0:00 1:00 IST 1947 Nov 2 2:00s 0:00 - GMT 1948 Apr 18 2:00s 0:00 GB-Eire GMT/IST 1968 Oct 27 -# From Paul Eggert (2018-01-18): -# The next line should look like this: +# The next line is active in fulldata.zi and commented out in pdstdata.zi. # 1:00 Eire IST/GMT -# However, in January 2018 we discovered that the Eire rules cause -# problems with tests for ICU: -# https://mm.icann.org/pipermail/tz/2018-January/025825.html -# and with tests for OpenJDK: -# https://mm.icann.org/pipermail/tz/2018-January/025822.html -# To work around this problem, use a traditional approximation for -# time stamps after 1971-10-31 02:00 UTC, to give ICU and OpenJDK -# developers breathing room to fix bugs. This approximation has -# correct UTC offsets, but results in tm_isdst flags are the reverse -# of what they should be. This workaround is temporary and should be -# removed reasonably soon. +# These three lines are active in pdstdata.zi and commented out in +# fulldata.zi. 1:00 - IST 1971 Oct 31 2:00u 0:00 GB-Eire GMT/IST 1996 0:00 EU GMT/IST -# End of workaround for ICU and OpenJDK bugs. ############################################################################### diff --git a/zidst.awk b/zidst.awk new file mode 100644 index 0000000..7885e9a --- /dev/null +++ b/zidst.awk @@ -0,0 +1,50 @@ +# Convert tzdata source into full or positive-DST form + +# Contributed by Paul Eggert. This file is in the public domain. + +# This is not a general-purpose converter; it is designed for current tzdata. +# +# When converting to full form, the output can use negative DST offsets. +# +# When converting to positive-DST form, the output uses only positive +# DST offsets. The idea is for the output data to simulate the +# behavior of the input data as best it can within the constraints of +# positive DST offsets. +# +# In the input, lines requiring the full format are commented #[full] +# and the positive DST near-equivalents are commented #[pdst]. + +BEGIN { + dst_type["full"] = 1 + dst_type["pdst"] = 1 + + # The command line should set OUTFILE to the name of the output file, + # which should start with either "full" or "pdst". + todst = substr(outfile, 1, 4) + if (!dst_type[todst]) exit 1 +} + +/^Zone/ { zone = $2 } + +{ + in_comment = /^#/ + + # Test whether this line should differ between the full and the pdst versions. + Rule_Eire = /^#?Rule[\t ]+Eire[\t ]/ + Zone_Dublin_post_1968 \ + = (zone == "Europe/Dublin" && /^#?[\t ]+[01]:00[\t ]/ \ + && (!$(in_comment + 4) || 1968 < $(in_comment + 4))) + + # If so, uncomment the desired version and comment out the undesired one. + if (Rule_Eire || Zone_Dublin_post_1968) { + if ((Rule_Eire \ + || (Zone_Dublin_post_1968 && $(in_comment + 3) == "IST/GMT")) \ + == (todst == "full")) { + sub(/^#/, "") + } else if (/^[^#]/) { + sub(/^/, "#") + } + } +} + +{ print } -- 2.14.3

7 14

timezone history of Uruguay
by Jeremie Bonjour 20 Feb '18

20 Feb '18

I submitted this information because it is not correct on the iana. org website. Greetings! Source: http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.… Army Force of Uruguay http://www.armada.mil.uy .:Armada Nacional - Marina de Uruguay:.<http://www.armada.mil.uy/> www.armada.mil.uy Embarcación demorada La Armada Nacional, a través del Centro Coordinador de Búsqueda y Rescate en el Mar (MRCC), está realizando la búsqueda de un pesquero ... Almanac 2018, page 38 [cid:4e5339c0-4b51-4184-b33a-ad63059bec3a] Saludos. Jeremie Bonjour (+598) 093 81 21 71

4 9

Re: [tz] Will you add America/Boston?
by None 31 Jan '18

31 Jan '18

Why exactly do you want an America/Boston? The timezone for Boston is America/ New_York. -- John Harris, Jr. <johnmh(a)splentity.com> CTO, Splentity Software

2 1

Will you add America/Boston?
by David Hedlund 30 Jan '18

30 Jan '18

Boston is unfortunately not listed in the Time Zone Database. Are you going to add it?

4 3

[PROPOSED] Remove unused letters from Rule lines
by Paul Eggert 30 Jan '18

30 Jan '18

* checktab.awk: Check for common instances of a Rule line containing LETTER/S that are never used. All instances removed. This does not change zic output; it merely omits data no longer relevant to entries that now use numeric time zone abbreviations. --- africa | 8 +-- asia | 148 ++++++++++++++++++++-------------------- australasia | 86 ++++++++++++------------ checktab.awk | 9 +++ europe | 14 ++-- southamerica | 216 +++++++++++++++++++++++++++++------------------------------ 6 files changed, 245 insertions(+), 236 deletions(-) diff --git a/africa b/africa index 56640cd..0f8b16c 100644 --- a/africa +++ b/africa @@ -396,8 +396,8 @@ Zone Africa/Cairo 2:05:09 - LMT 1900 Oct # lack of better info, use Shanks except treat the minus sign as a # typo, and assume DST started in 1920 not 1936. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Ghana 1920 1942 - Sep 1 0:00 0:20 GHST -Rule Ghana 1920 1942 - Dec 31 0:00 0 GMT +Rule Ghana 1920 1942 - Sep 1 0:00 0:20 - +Rule Ghana 1920 1942 - Dec 31 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Accra -0:00:52 - LMT 1918 0:00 Ghana GMT/+0020 @@ -609,9 +609,9 @@ Zone Africa/Tripoli 0:52:44 - LMT 1920 # at 2am (or 02:00) local time..." # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Mauritius 1982 only - Oct 10 0:00 1:00 S +Rule Mauritius 1982 only - Oct 10 0:00 1:00 - Rule Mauritius 1983 only - Mar 21 0:00 0 - -Rule Mauritius 2008 only - Oct lastSun 2:00 1:00 S +Rule Mauritius 2008 only - Oct lastSun 2:00 1:00 - Rule Mauritius 2009 only - Mar lastSun 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis diff --git a/asia b/asia index 3f6e95c..63d2fb0 100644 --- a/asia +++ b/asia @@ -69,13 +69,13 @@ Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 - Rule EUAsia 1996 max - Oct lastSun 1:00u 0 - -Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S +Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 - Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 - Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 - -Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S +Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 - Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 - Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 - -Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 S +Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 - Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 - # Afghanistan @@ -110,7 +110,7 @@ Zone Asia/Kabul 4:36:48 - LMT 1890 # (brief) # http://www.worldtimezone.com/dst_news/dst_news_armenia03.html # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 S +Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 - Rule Armenia 2011 only - Oct lastSun 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 @@ -136,7 +136,7 @@ Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 # http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 S +Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 - Rule Azer 1997 2015 - Oct lastSun 5:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:19:24 - LMT 1924 May 2 @@ -223,7 +223,7 @@ Zone Asia/Baku 3:19:24 - LMT 1924 May 2 # http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Dhaka 2009 only - Jun 19 23:00 1:00 S +Rule Dhaka 2009 only - Jun 19 23:00 1:00 - Rule Dhaka 2009 only - Dec 31 24:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1106,61 +1106,61 @@ Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov # thirtieth day of Shahrivar. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Iran 1978 1980 - Mar 21 0:00 1:00 D -Rule Iran 1978 only - Oct 21 0:00 0 S -Rule Iran 1979 only - Sep 19 0:00 0 S -Rule Iran 1980 only - Sep 23 0:00 0 S -Rule Iran 1991 only - May 3 0:00 1:00 D -Rule Iran 1992 1995 - Mar 22 0:00 1:00 D -Rule Iran 1991 1995 - Sep 22 0:00 0 S -Rule Iran 1996 only - Mar 21 0:00 1:00 D -Rule Iran 1996 only - Sep 21 0:00 0 S -Rule Iran 1997 1999 - Mar 22 0:00 1:00 D -Rule Iran 1997 1999 - Sep 22 0:00 0 S -Rule Iran 2000 only - Mar 21 0:00 1:00 D -Rule Iran 2000 only - Sep 21 0:00 0 S -Rule Iran 2001 2003 - Mar 22 0:00 1:00 D -Rule Iran 2001 2003 - Sep 22 0:00 0 S -Rule Iran 2004 only - Mar 21 0:00 1:00 D -Rule Iran 2004 only - Sep 21 0:00 0 S -Rule Iran 2005 only - Mar 22 0:00 1:00 D -Rule Iran 2005 only - Sep 22 0:00 0 S -Rule Iran 2008 only - Mar 21 0:00 1:00 D -Rule Iran 2008 only - Sep 21 0:00 0 S -Rule Iran 2009 2011 - Mar 22 0:00 1:00 D -Rule Iran 2009 2011 - Sep 22 0:00 0 S -Rule Iran 2012 only - Mar 21 0:00 1:00 D -Rule Iran 2012 only - Sep 21 0:00 0 S -Rule Iran 2013 2015 - Mar 22 0:00 1:00 D -Rule Iran 2013 2015 - Sep 22 0:00 0 S -Rule Iran 2016 only - Mar 21 0:00 1:00 D -Rule Iran 2016 only - Sep 21 0:00 0 S -Rule Iran 2017 2019 - Mar 22 0:00 1:00 D -Rule Iran 2017 2019 - Sep 22 0:00 0 S -Rule Iran 2020 only - Mar 21 0:00 1:00 D -Rule Iran 2020 only - Sep 21 0:00 0 S -Rule Iran 2021 2023 - Mar 22 0:00 1:00 D -Rule Iran 2021 2023 - Sep 22 0:00 0 S -Rule Iran 2024 only - Mar 21 0:00 1:00 D -Rule Iran 2024 only - Sep 21 0:00 0 S -Rule Iran 2025 2027 - Mar 22 0:00 1:00 D -Rule Iran 2025 2027 - Sep 22 0:00 0 S -Rule Iran 2028 2029 - Mar 21 0:00 1:00 D -Rule Iran 2028 2029 - Sep 21 0:00 0 S -Rule Iran 2030 2031 - Mar 22 0:00 1:00 D -Rule Iran 2030 2031 - Sep 22 0:00 0 S -Rule Iran 2032 2033 - Mar 21 0:00 1:00 D -Rule Iran 2032 2033 - Sep 21 0:00 0 S -Rule Iran 2034 2035 - Mar 22 0:00 1:00 D -Rule Iran 2034 2035 - Sep 22 0:00 0 S +Rule Iran 1978 1980 - Mar 21 0:00 1:00 - +Rule Iran 1978 only - Oct 21 0:00 0 - +Rule Iran 1979 only - Sep 19 0:00 0 - +Rule Iran 1980 only - Sep 23 0:00 0 - +Rule Iran 1991 only - May 3 0:00 1:00 - +Rule Iran 1992 1995 - Mar 22 0:00 1:00 - +Rule Iran 1991 1995 - Sep 22 0:00 0 - +Rule Iran 1996 only - Mar 21 0:00 1:00 - +Rule Iran 1996 only - Sep 21 0:00 0 - +Rule Iran 1997 1999 - Mar 22 0:00 1:00 - +Rule Iran 1997 1999 - Sep 22 0:00 0 - +Rule Iran 2000 only - Mar 21 0:00 1:00 - +Rule Iran 2000 only - Sep 21 0:00 0 - +Rule Iran 2001 2003 - Mar 22 0:00 1:00 - +Rule Iran 2001 2003 - Sep 22 0:00 0 - +Rule Iran 2004 only - Mar 21 0:00 1:00 - +Rule Iran 2004 only - Sep 21 0:00 0 - +Rule Iran 2005 only - Mar 22 0:00 1:00 - +Rule Iran 2005 only - Sep 22 0:00 0 - +Rule Iran 2008 only - Mar 21 0:00 1:00 - +Rule Iran 2008 only - Sep 21 0:00 0 - +Rule Iran 2009 2011 - Mar 22 0:00 1:00 - +Rule Iran 2009 2011 - Sep 22 0:00 0 - +Rule Iran 2012 only - Mar 21 0:00 1:00 - +Rule Iran 2012 only - Sep 21 0:00 0 - +Rule Iran 2013 2015 - Mar 22 0:00 1:00 - +Rule Iran 2013 2015 - Sep 22 0:00 0 - +Rule Iran 2016 only - Mar 21 0:00 1:00 - +Rule Iran 2016 only - Sep 21 0:00 0 - +Rule Iran 2017 2019 - Mar 22 0:00 1:00 - +Rule Iran 2017 2019 - Sep 22 0:00 0 - +Rule Iran 2020 only - Mar 21 0:00 1:00 - +Rule Iran 2020 only - Sep 21 0:00 0 - +Rule Iran 2021 2023 - Mar 22 0:00 1:00 - +Rule Iran 2021 2023 - Sep 22 0:00 0 - +Rule Iran 2024 only - Mar 21 0:00 1:00 - +Rule Iran 2024 only - Sep 21 0:00 0 - +Rule Iran 2025 2027 - Mar 22 0:00 1:00 - +Rule Iran 2025 2027 - Sep 22 0:00 0 - +Rule Iran 2028 2029 - Mar 21 0:00 1:00 - +Rule Iran 2028 2029 - Sep 21 0:00 0 - +Rule Iran 2030 2031 - Mar 22 0:00 1:00 - +Rule Iran 2030 2031 - Sep 22 0:00 0 - +Rule Iran 2032 2033 - Mar 21 0:00 1:00 - +Rule Iran 2032 2033 - Sep 21 0:00 0 - +Rule Iran 2034 2035 - Mar 22 0:00 1:00 - +Rule Iran 2034 2035 - Sep 22 0:00 0 - # # The following rules are approximations starting in the year 2038. # These are the best post-2037 approximations available, given the # restrictions of a single rule using a Gregorian-based data format. # At some point this table will need to be extended, though quite # possibly Iran will change the rules first. -Rule Iran 2036 max - Mar 21 0:00 1:00 D -Rule Iran 2036 max - Sep 21 0:00 0 S +Rule Iran 2036 max - Mar 21 0:00 1:00 - +Rule Iran 2036 max - Sep 21 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tehran 3:25:44 - LMT 1916 @@ -1196,17 +1196,17 @@ Zone Asia/Tehran 3:25:44 - LMT 1916 # https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Iraq 1982 only - May 1 0:00 1:00 D -Rule Iraq 1982 1984 - Oct 1 0:00 0 S -Rule Iraq 1983 only - Mar 31 0:00 1:00 D -Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D -Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S -Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D +Rule Iraq 1982 only - May 1 0:00 1:00 - +Rule Iraq 1982 1984 - Oct 1 0:00 0 - +Rule Iraq 1983 only - Mar 31 0:00 1:00 - +Rule Iraq 1984 1985 - Apr 1 0:00 1:00 - +Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 - +Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 - # IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the ':01' is a typo. # Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this. # -Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D -Rule Iraq 1991 2007 - Oct 1 3:00s 0 S +Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 - +Rule Iraq 1991 2007 - Oct 1 3:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baghdad 2:57:40 - LMT 1890 2:57:36 - BMT 1918 # Baghdad Mean Time? @@ -1903,9 +1903,9 @@ Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk # From 2005-08-12 our GMT-offset is +6, w/o any daylight saving. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S +Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 - Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 - -Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S +Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 - Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 @@ -2037,7 +2037,7 @@ Zone Asia/Beirut 2:22:00 - LMT 1880 # Malaysia # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer +Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 - Rule NBorneo 1935 1941 - Dec 14 0:00 0 - # # peninsular Malaysia @@ -2182,7 +2182,7 @@ Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé # http://zasag.mn/news/view/8969 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S +Rule Mongol 1983 1984 - Apr 1 0:00 1:00 - Rule Mongol 1983 only - Oct 1 0:00 0 - # Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00, # but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM @@ -2199,13 +2199,13 @@ Rule Mongol 1983 only - Oct 1 0:00 0 - # Mongolian Government meeting has concluded today to cancel daylight # saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192 -Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S +Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 - Rule Mongol 1984 1998 - Sep lastSun 0:00 0 - # IATA SSIM (1999-09) says Mongolia no longer observes DST. -Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S +Rule Mongol 2001 only - Apr lastSat 2:00 1:00 - Rule Mongol 2001 2006 - Sep lastSat 2:00 0 - -Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S -Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 S +Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 - +Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 - Rule Mongol 2015 2016 - Sep lastSat 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -2737,11 +2737,11 @@ Zone Asia/Hebron 2:20:23 - LMT 1900 Oct # http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use… # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Phil 1936 only - Nov 1 0:00 1:00 S +Rule Phil 1936 only - Nov 1 0:00 1:00 - Rule Phil 1937 only - Feb 1 0:00 0 - -Rule Phil 1954 only - Apr 12 0:00 1:00 S +Rule Phil 1954 only - Apr 12 0:00 1:00 - Rule Phil 1954 only - Jul 1 0:00 0 - -Rule Phil 1978 only - Mar 22 0:00 1:00 S +Rule Phil 1978 only - Mar 22 0:00 1:00 - Rule Phil 1978 only - Sep 21 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 diff --git a/australasia b/australasia index bdf19a4..2de41d2 100644 --- a/australasia +++ b/australasia @@ -196,20 +196,20 @@ Zone Australia/Broken_Hill 9:25:48 - LMT 1895 Feb # Lord Howe Island # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule LH 1981 1984 - Oct lastSun 2:00 1:00 D -Rule LH 1982 1985 - Mar Sun>=1 2:00 0 S -Rule LH 1985 only - Oct lastSun 2:00 0:30 D -Rule LH 1986 1989 - Mar Sun>=15 2:00 0 S -Rule LH 1986 only - Oct 19 2:00 0:30 D -Rule LH 1987 1999 - Oct lastSun 2:00 0:30 D -Rule LH 1990 1995 - Mar Sun>=1 2:00 0 S -Rule LH 1996 2005 - Mar lastSun 2:00 0 S -Rule LH 2000 only - Aug lastSun 2:00 0:30 D -Rule LH 2001 2007 - Oct lastSun 2:00 0:30 D -Rule LH 2006 only - Apr Sun>=1 2:00 0 S -Rule LH 2007 only - Mar lastSun 2:00 0 S -Rule LH 2008 max - Apr Sun>=1 2:00 0 S -Rule LH 2008 max - Oct Sun>=1 2:00 0:30 D +Rule LH 1981 1984 - Oct lastSun 2:00 1:00 - +Rule LH 1982 1985 - Mar Sun>=1 2:00 0 - +Rule LH 1985 only - Oct lastSun 2:00 0:30 - +Rule LH 1986 1989 - Mar Sun>=15 2:00 0 - +Rule LH 1986 only - Oct 19 2:00 0:30 - +Rule LH 1987 1999 - Oct lastSun 2:00 0:30 - +Rule LH 1990 1995 - Mar Sun>=1 2:00 0 - +Rule LH 1996 2005 - Mar lastSun 2:00 0 - +Rule LH 2000 only - Aug lastSun 2:00 0:30 - +Rule LH 2001 2007 - Oct lastSun 2:00 0:30 - +Rule LH 2006 only - Apr Sun>=1 2:00 0 - +Rule LH 2007 only - Mar lastSun 2:00 0 - +Rule LH 2008 max - Apr Sun>=1 2:00 0 - +Rule LH 2008 max - Oct Sun>=1 2:00 0:30 - Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb 10:00 - AEST 1981 Mar 10:30 LH +1030/+1130 1985 Jul @@ -367,15 +367,15 @@ Zone Indian/Cocos 6:27:40 - LMT 1900 # practice than guessing no DST. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 S +Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 - Rule Fiji 1999 2000 - Feb lastSun 3:00 0 - -Rule Fiji 2009 only - Nov 29 2:00 1:00 S +Rule Fiji 2009 only - Nov 29 2:00 1:00 - Rule Fiji 2010 only - Mar lastSun 3:00 0 - -Rule Fiji 2010 2013 - Oct Sun>=21 2:00 1:00 S +Rule Fiji 2010 2013 - Oct Sun>=21 2:00 1:00 - Rule Fiji 2011 only - Mar Sun>=1 3:00 0 - Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 - Rule Fiji 2014 only - Jan Sun>=18 2:00 0 - -Rule Fiji 2014 max - Nov Sun>=1 2:00 1:00 S +Rule Fiji 2014 max - Nov Sun>=1 2:00 1:00 - Rule Fiji 2015 max - Jan Sun>=14 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva @@ -447,9 +447,9 @@ Zone Pacific/Nauru 11:07:40 - LMT 1921 Jan 15 # Uaobe # New Caledonia # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule NC 1977 1978 - Dec Sun>=1 0:00 1:00 S +Rule NC 1977 1978 - Dec Sun>=1 0:00 1:00 - Rule NC 1978 1979 - Feb 27 0:00 0 - -Rule NC 1996 only - Dec 1 2:00s 1:00 S +Rule NC 1996 only - Dec 1 2:00s 1:00 - # Shanks & Pottenger say the following was at 2:00; go with IATA. Rule NC 1997 only - Mar 2 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -474,23 +474,23 @@ Rule NZ 1946 only - Jan 1 0:00 0 S # transition. Duplicate the Rule lines for now, to give the 2018a change # time to percolate out. Rule NZ 1974 only - Nov Sun>=1 2:00s 1:00 D -Rule Chatham 1974 only - Nov Sun>=1 2:45s 1:00 D +Rule Chatham 1974 only - Nov Sun>=1 2:45s 1:00 - Rule NZ 1975 only - Feb lastSun 2:00s 0 S -Rule Chatham 1975 only - Feb lastSun 2:45s 0 S +Rule Chatham 1975 only - Feb lastSun 2:45s 0 - Rule NZ 1975 1988 - Oct lastSun 2:00s 1:00 D -Rule Chatham 1975 1988 - Oct lastSun 2:45s 1:00 D +Rule Chatham 1975 1988 - Oct lastSun 2:45s 1:00 - Rule NZ 1976 1989 - Mar Sun>=1 2:00s 0 S -Rule Chatham 1976 1989 - Mar Sun>=1 2:45s 0 S +Rule Chatham 1976 1989 - Mar Sun>=1 2:45s 0 - Rule NZ 1989 only - Oct Sun>=8 2:00s 1:00 D -Rule Chatham 1989 only - Oct Sun>=8 2:45s 1:00 D +Rule Chatham 1989 only - Oct Sun>=8 2:45s 1:00 - Rule NZ 1990 2006 - Oct Sun>=1 2:00s 1:00 D -Rule Chatham 1990 2006 - Oct Sun>=1 2:45s 1:00 D +Rule Chatham 1990 2006 - Oct Sun>=1 2:45s 1:00 - Rule NZ 1990 2007 - Mar Sun>=15 2:00s 0 S -Rule Chatham 1990 2007 - Mar Sun>=15 2:45s 0 S +Rule Chatham 1990 2007 - Mar Sun>=15 2:45s 0 - Rule NZ 2007 max - Sep lastSun 2:00s 1:00 D -Rule Chatham 2007 max - Sep lastSun 2:45s 1:00 D +Rule Chatham 2007 max - Sep lastSun 2:45s 1:00 - Rule NZ 2008 max - Apr Sun>=1 2:00s 0 S -Rule Chatham 2008 max - Apr Sun>=1 2:45s 0 S +Rule Chatham 2008 max - Apr Sun>=1 2:45s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Auckland 11:39:04 - LMT 1868 Nov 2 11:30 NZ NZ%sT 1946 Jan 1 @@ -514,9 +514,9 @@ Link Pacific/Auckland Antarctica/McMurdo # Cook Is # From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Cook 1978 only - Nov 12 0:00 0:30 HS +Rule Cook 1978 only - Nov 12 0:00 0:30 - Rule Cook 1979 1991 - Mar Sun>=1 0:00 0 - -Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 HS +Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua -10:30 - -1030 1978 Nov 12 @@ -657,11 +657,11 @@ Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands # Assume the pattern instituted in 2012 will continue indefinitely. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule WS 2010 only - Sep lastSun 0:00 1 D -Rule WS 2011 only - Apr Sat>=1 4:00 0 S -Rule WS 2011 only - Sep lastSat 3:00 1 D -Rule WS 2012 max - Apr Sun>=1 4:00 0 S -Rule WS 2012 max - Sep lastSun 3:00 1 D +Rule WS 2010 only - Sep lastSun 0:00 1 - +Rule WS 2011 only - Apr Sat>=1 4:00 0 - +Rule WS 2011 only - Sep lastSat 3:00 1 - +Rule WS 2012 max - Apr Sun>=1 4:00 0 - +Rule WS 2012 max - Sep lastSun 3:00 1 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Apia 12:33:04 - LMT 1892 Jul 5 -11:26:56 - LMT 1911 @@ -701,11 +701,11 @@ Zone Pacific/Fakaofo -11:24:56 - LMT 1901 # Tonga # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Tonga 1999 only - Oct 7 2:00s 1:00 S +Rule Tonga 1999 only - Oct 7 2:00s 1:00 - Rule Tonga 2000 only - Mar 19 2:00s 0 - -Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 S +Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 - Rule Tonga 2001 2002 - Jan lastSun 2:00 0 - -Rule Tonga 2016 only - Nov Sun>=1 2:00 1:00 S +Rule Tonga 2016 only - Nov Sun>=1 2:00 1:00 - Rule Tonga 2017 only - Jan Sun>=15 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Tongatapu 12:19:20 - LMT 1901 @@ -782,12 +782,12 @@ Zone Pacific/Wake 11:06:28 - LMT 1901 # Vanuatu # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Vanuatu 1983 only - Sep 25 0:00 1:00 S +Rule Vanuatu 1983 only - Sep 25 0:00 1:00 - Rule Vanuatu 1984 1991 - Mar Sun>=23 0:00 0 - -Rule Vanuatu 1984 only - Oct 23 0:00 1:00 S -Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 S +Rule Vanuatu 1984 only - Oct 23 0:00 1:00 - +Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 - Rule Vanuatu 1992 1993 - Jan Sun>=23 0:00 0 - -Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 S +Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila 11:00 Vanuatu +11/+12 diff --git a/checktab.awk b/checktab.awk index 2397673..393ab19 100644 --- a/checktab.awk +++ b/checktab.awk @@ -126,6 +126,7 @@ $1 ~ /^#/ { next } if ($1 == "Zone") { tz = $2 ruleUsed[$4] = 1 + if ($5 ~ /%/) rulePercentUsed[$4] = 1 } else if ($1 == "Link" && zone_table == "zone.tab") { # Ignore Link commands if source and destination basenames # are identical, e.g. Europe/Istanbul versus Asia/Istanbul. @@ -136,8 +137,10 @@ $1 ~ /^#/ { next } if (src != dst) tz = $3 } else if ($1 == "Rule") { ruleDefined[$2] = 1 + if ($10 != "-") ruleLetters[$2] = 1 } else { ruleUsed[$2] = 1 + if ($3 ~ /%/) rulePercentUsed[$2] = 1 } if (tz && tz ~ /\//) { if (!tztab[tz]) { @@ -156,6 +159,12 @@ END { status = 1 } } + for (tz in ruleLetters) { + if (!rulePercentUsed[tz]) { + printf "%s: Rule contains letters never used\n", tz + status = 1 + } + } for (tz in tztab) { if (!zoneSeen[tz]) { printf "%s:%d: no Zone table for '%s'\n", \ diff --git a/europe b/europe index 5aeda33..76cbb5d 100644 --- a/europe +++ b/europe @@ -1539,21 +1539,21 @@ Zone Europe/Budapest 1:16:20 - LMT 1890 Oct # http://www.almanak.hi.is/klukkan.html # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Iceland 1917 1919 - Feb 19 23:00 1:00 S +Rule Iceland 1917 1919 - Feb 19 23:00 1:00 - Rule Iceland 1917 only - Oct 21 1:00 0 - Rule Iceland 1918 1919 - Nov 16 1:00 0 - -Rule Iceland 1921 only - Mar 19 23:00 1:00 S +Rule Iceland 1921 only - Mar 19 23:00 1:00 - Rule Iceland 1921 only - Jun 23 1:00 0 - -Rule Iceland 1939 only - Apr 29 23:00 1:00 S +Rule Iceland 1939 only - Apr 29 23:00 1:00 - Rule Iceland 1939 only - Oct 29 2:00 0 - -Rule Iceland 1940 only - Feb 25 2:00 1:00 S +Rule Iceland 1940 only - Feb 25 2:00 1:00 - Rule Iceland 1940 1941 - Nov Sun>=2 1:00s 0 - -Rule Iceland 1941 1942 - Mar Sun>=2 1:00s 1:00 S +Rule Iceland 1941 1942 - Mar Sun>=2 1:00s 1:00 - # 1943-1946 - first Sunday in March until first Sunday in winter -Rule Iceland 1943 1946 - Mar Sun>=1 1:00s 1:00 S +Rule Iceland 1943 1946 - Mar Sun>=1 1:00s 1:00 - Rule Iceland 1942 1948 - Oct Sun>=22 1:00s 0 - # 1947-1967 - first Sunday in April until first Sunday in winter -Rule Iceland 1947 1967 - Apr Sun>=1 1:00s 1:00 S +Rule Iceland 1947 1967 - Apr Sun>=1 1:00s 1:00 - # 1949 and 1967 Oct transitions delayed by 1 week Rule Iceland 1949 only - Oct 30 1:00s 0 - Rule Iceland 1950 1966 - Oct Sun>=22 1:00s 0 - diff --git a/southamerica b/southamerica index bcfde4b..e1c6590 100644 --- a/southamerica +++ b/southamerica @@ -47,28 +47,28 @@ # AR was chosen because they are the ISO letters that represent Argentina. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Arg 1930 only - Dec 1 0:00 1:00 S +Rule Arg 1930 only - Dec 1 0:00 1:00 - Rule Arg 1931 only - Apr 1 0:00 0 - -Rule Arg 1931 only - Oct 15 0:00 1:00 S +Rule Arg 1931 only - Oct 15 0:00 1:00 - Rule Arg 1932 1940 - Mar 1 0:00 0 - -Rule Arg 1932 1939 - Nov 1 0:00 1:00 S -Rule Arg 1940 only - Jul 1 0:00 1:00 S +Rule Arg 1932 1939 - Nov 1 0:00 1:00 - +Rule Arg 1940 only - Jul 1 0:00 1:00 - Rule Arg 1941 only - Jun 15 0:00 0 - -Rule Arg 1941 only - Oct 15 0:00 1:00 S +Rule Arg 1941 only - Oct 15 0:00 1:00 - Rule Arg 1943 only - Aug 1 0:00 0 - -Rule Arg 1943 only - Oct 15 0:00 1:00 S +Rule Arg 1943 only - Oct 15 0:00 1:00 - Rule Arg 1946 only - Mar 1 0:00 0 - -Rule Arg 1946 only - Oct 1 0:00 1:00 S +Rule Arg 1946 only - Oct 1 0:00 1:00 - Rule Arg 1963 only - Oct 1 0:00 0 - -Rule Arg 1963 only - Dec 15 0:00 1:00 S +Rule Arg 1963 only - Dec 15 0:00 1:00 - Rule Arg 1964 1966 - Mar 1 0:00 0 - -Rule Arg 1964 1966 - Oct 15 0:00 1:00 S +Rule Arg 1964 1966 - Oct 15 0:00 1:00 - Rule Arg 1967 only - Apr 2 0:00 0 - -Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S +Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 - -Rule Arg 1974 only - Jan 23 0:00 1:00 S +Rule Arg 1974 only - Jan 23 0:00 1:00 - Rule Arg 1974 only - May 1 0:00 0 - -Rule Arg 1988 only - Dec 1 0:00 1:00 S +Rule Arg 1988 only - Dec 1 0:00 1:00 - # # From Hernan G. Otero (1995-06-26): # These corrections were contributed by InterSoft Argentina S.A., @@ -76,7 +76,7 @@ Rule Arg 1988 only - Dec 1 0:00 1:00 S # Talleres de Hidrografía Naval Argentina # (Argentine Naval Hydrography Institute) Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - -Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S +Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - # # From Hernan G. Otero (1995-06-26): # From this moment on, the law that mandated the daylight saving @@ -87,7 +87,7 @@ Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S # On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, # which did not result in the switch of a time zone, as they stayed 9 hours # from the International Date Line. -Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S +Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - # From Paul Eggert (2007-12-28): # DST was set to expire on March 5, not March 3, but since it was converted # to standard time on March 3 it's more convenient for us to pretend that @@ -190,9 +190,9 @@ Rule Arg 2000 only - Mar 3 0:00 0 - # la modificación del huso horario, ya que 2009 nos encuentra con # crecimiento en la producción y distribución energética." -Rule Arg 2007 only - Dec 30 0:00 1:00 S +Rule Arg 2007 only - Dec 30 0:00 1:00 - Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 - -Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S +Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - # From Mariano Absatz (2004-05-21): # Today it was officially published that the Province of Mendoza is changing @@ -529,7 +529,7 @@ Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 # San Luis (SL) Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - -Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S +Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May @@ -771,14 +771,14 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Decree 20,466 <http://pcdsh01.on.br/HV20466.htm> (1931-10-01) # Decree 21,896 <http://pcdsh01.on.br/HV21896.htm> (1932-01-10) -Rule Brazil 1931 only - Oct 3 11:00 1:00 S +Rule Brazil 1931 only - Oct 3 11:00 1:00 - Rule Brazil 1932 1933 - Apr 1 0:00 0 - -Rule Brazil 1932 only - Oct 3 0:00 1:00 S +Rule Brazil 1932 only - Oct 3 0:00 1:00 - # Decree 23,195 <http://pcdsh01.on.br/HV23195.htm> (1933-10-10) # revoked DST. # Decree 27,496 <http://pcdsh01.on.br/HV27496.htm> (1949-11-24) # Decree 27,998 <http://pcdsh01.on.br/HV27998.htm> (1950-04-13) -Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S +Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - Rule Brazil 1950 only - Apr 16 1:00 0 - Rule Brazil 1951 1952 - Apr 1 0:00 0 - # Decree 32,308 <http://pcdsh01.on.br/HV32308.htm> (1953-02-24) @@ -790,51 +790,51 @@ Rule Brazil 1953 only - Mar 1 0:00 0 - # in SP, RJ, GB, MG, ES, due to the prolongation of the drought. # Decree 53,071 <http://pcdsh01.on.br/HV53071.htm> (1963-12-03) # extended the above decree to all of the national territory on 12-09. -Rule Brazil 1963 only - Dec 9 0:00 1:00 S +Rule Brazil 1963 only - Dec 9 0:00 1:00 - # Decree 53,604 <http://pcdsh01.on.br/HV53604.htm> (1964-02-25) # extended summer time by one day to 1964-03-01 00:00 (start of school). Rule Brazil 1964 only - Mar 1 0:00 0 - # Decree 55,639 <http://pcdsh01.on.br/HV55639.htm> (1965-01-27) -Rule Brazil 1965 only - Jan 31 0:00 1:00 S +Rule Brazil 1965 only - Jan 31 0:00 1:00 - Rule Brazil 1965 only - Mar 31 0:00 0 - # Decree 57,303 <http://pcdsh01.on.br/HV57303.htm> (1965-11-22) -Rule Brazil 1965 only - Dec 1 0:00 1:00 S +Rule Brazil 1965 only - Dec 1 0:00 1:00 - # Decree 57,843 <http://pcdsh01.on.br/HV57843.htm> (1966-02-18) Rule Brazil 1966 1968 - Mar 1 0:00 0 - -Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S +Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - # Decree 63,429 <http://pcdsh01.on.br/HV63429.htm> (1968-10-15) # revoked DST. # Decree 91,698 <http://pcdsh01.on.br/HV91698.htm> (1985-09-27) -Rule Brazil 1985 only - Nov 2 0:00 1:00 S +Rule Brazil 1985 only - Nov 2 0:00 1:00 - # Decree 92,310 (1986-01-21) # Decree 92,463 (1986-03-13) Rule Brazil 1986 only - Mar 15 0:00 0 - # Decree 93,316 (1986-10-01) -Rule Brazil 1986 only - Oct 25 0:00 1:00 S +Rule Brazil 1986 only - Oct 25 0:00 1:00 - Rule Brazil 1987 only - Feb 14 0:00 0 - # Decree 94,922 <http://pcdsh01.on.br/HV94922.htm> (1987-09-22) -Rule Brazil 1987 only - Oct 25 0:00 1:00 S +Rule Brazil 1987 only - Oct 25 0:00 1:00 - Rule Brazil 1988 only - Feb 7 0:00 0 - # Decree 96,676 <http://pcdsh01.on.br/HV96676.htm> (1988-09-12) # except for the states of AC, AM, PA, RR, RO, and AP (then a territory) -Rule Brazil 1988 only - Oct 16 0:00 1:00 S +Rule Brazil 1988 only - Oct 16 0:00 1:00 - Rule Brazil 1989 only - Jan 29 0:00 0 - # Decree 98,077 <http://pcdsh01.on.br/HV98077.htm> (1989-08-21) # with the same exceptions -Rule Brazil 1989 only - Oct 15 0:00 1:00 S +Rule Brazil 1989 only - Oct 15 0:00 1:00 - Rule Brazil 1990 only - Feb 11 0:00 0 - # Decree 99,530 <http://pcdsh01.on.br/HV99530.htm> (1990-09-17) # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. # Decree 99,629 (1990-10-19) adds BA, MT. -Rule Brazil 1990 only - Oct 21 0:00 1:00 S +Rule Brazil 1990 only - Oct 21 0:00 1:00 - Rule Brazil 1991 only - Feb 17 0:00 0 - # Unnumbered decree <http://pcdsh01.on.br/HV1991.htm> (1991-09-25) # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. -Rule Brazil 1991 only - Oct 20 0:00 1:00 S +Rule Brazil 1991 only - Oct 20 0:00 1:00 - Rule Brazil 1992 only - Feb 9 0:00 0 - # Unnumbered decree <http://pcdsh01.on.br/HV1992.htm> (1992-10-16) # adopted by same states. -Rule Brazil 1992 only - Oct 25 0:00 1:00 S +Rule Brazil 1992 only - Oct 25 0:00 1:00 - Rule Brazil 1993 only - Jan 31 0:00 0 - # Decree 942 <http://pcdsh01.on.br/HV942.htm> (1993-09-28) # adopted by same states, plus AM. @@ -844,12 +844,12 @@ Rule Brazil 1993 only - Jan 31 0:00 0 - # adopted by same states, plus MT and TO. # Decree 1,674 <http://pcdsh01.on.br/HV1674.htm> (1995-10-13) # adds AL, SE. -Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S +Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - Rule Brazil 1996 only - Feb 11 0:00 0 - # Decree 2,000 <http://pcdsh01.on.br/HV2000.htm> (1996-09-04) # adopted by same states, minus AL, SE. -Rule Brazil 1996 only - Oct 6 0:00 1:00 S +Rule Brazil 1996 only - Oct 6 0:00 1:00 - Rule Brazil 1997 only - Feb 16 0:00 0 - # From Daniel C. Sobral (1998-02-12): # In 1997, the DS began on October 6. The stated reason was that @@ -859,19 +859,19 @@ Rule Brazil 1997 only - Feb 16 0:00 0 - # to help dealing with the shortages of electric power. # # Decree 2,317 (1997-09-04), adopted by same states. -Rule Brazil 1997 only - Oct 6 0:00 1:00 S +Rule Brazil 1997 only - Oct 6 0:00 1:00 - # Decree 2,495 <http://pcdsh01.on.br/figuras/HV2495.JPG> # (1998-02-10) Rule Brazil 1998 only - Mar 1 0:00 0 - # Decree 2,780 <http://pcdsh01.on.br/figuras/Hv98.jpg> (1998-09-11) # adopted by the same states as before. -Rule Brazil 1998 only - Oct 11 0:00 1:00 S +Rule Brazil 1998 only - Oct 11 0:00 1:00 - Rule Brazil 1999 only - Feb 21 0:00 0 - # Decree 3,150 <http://pcdsh01.on.br/figuras/HV3150.gif> # (1999-08-23) adopted by same states. # Decree 3,188 <http://pcdsh01.on.br/DecHV99.gif> (1999-09-30) # adds SE, AL, PB, PE, RN, CE, PI, MA and RR. -Rule Brazil 1999 only - Oct 3 0:00 1:00 S +Rule Brazil 1999 only - Oct 3 0:00 1:00 - Rule Brazil 2000 only - Feb 27 0:00 0 - # Decree 3,592 <http://pcdsh01.on.br/DEC3592.htm> (2000-09-06) # adopted by the same states as before. @@ -881,34 +881,34 @@ Rule Brazil 2000 only - Feb 27 0:00 0 - # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. # Decree 3,916 <http://pcdsh01.on.br/figuras/HV3916.gif> # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. -Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S +Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. # 4,399 <http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm> -Rule Brazil 2002 only - Nov 3 0:00 1:00 S +Rule Brazil 2002 only - Nov 3 0:00 1:00 - # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. # 4,844 <http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm> -Rule Brazil 2003 only - Oct 19 0:00 1:00 S +Rule Brazil 2003 only - Oct 19 0:00 1:00 - # Decree 5,223 (2004-10-01) reestablishes DST in MT. # 5,223 <http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm> -Rule Brazil 2004 only - Nov 2 0:00 1:00 S +Rule Brazil 2004 only - Nov 2 0:00 1:00 - # Decree 5,539 <http://pcdsh01.on.br/DecHV5539.gif> (2005-09-19), # adopted by the same states as before. -Rule Brazil 2005 only - Oct 16 0:00 1:00 S +Rule Brazil 2005 only - Oct 16 0:00 1:00 - # Decree 5,920 <http://pcdsh01.on.br/DecHV5920.gif> (2006-10-03), # adopted by the same states as before. -Rule Brazil 2006 only - Nov 5 0:00 1:00 S +Rule Brazil 2006 only - Nov 5 0:00 1:00 - Rule Brazil 2007 only - Feb 25 0:00 0 - # Decree 6,212 <http://pcdsh01.on.br/DecHV6212.gif> (2007-09-26), # adopted by the same states as before. -Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S +Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - # From Frederico A. C. Neves (2008-09-10): # According to this decree # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm # [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the # 3rd Feb Sunday. There is an exception on the return date when this is # the Carnival Sunday then the return date will be the next Sunday... -Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 S +Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - # Decree 7,584 <http://pcdsh01.on.br/HVdecreto7584_20111013.jpg> (2011-10-13) # added Bahia. @@ -926,7 +926,7 @@ Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html # From Steffen Thorsen (2017-12-20): # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm -Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 S +Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - @@ -1233,28 +1233,28 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # For now, assume that they will not revert. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Chile 1927 1931 - Sep 1 0:00 1:00 S +Rule Chile 1927 1931 - Sep 1 0:00 1:00 - Rule Chile 1928 1932 - Apr 1 0:00 0 - -Rule Chile 1968 only - Nov 3 4:00u 1:00 S +Rule Chile 1968 only - Nov 3 4:00u 1:00 - Rule Chile 1969 only - Mar 30 3:00u 0 - -Rule Chile 1969 only - Nov 23 4:00u 1:00 S +Rule Chile 1969 only - Nov 23 4:00u 1:00 - Rule Chile 1970 only - Mar 29 3:00u 0 - Rule Chile 1971 only - Mar 14 3:00u 0 - -Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S +Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - -Rule Chile 1973 only - Sep 30 4:00u 1:00 S -Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S +Rule Chile 1973 only - Sep 30 4:00u 1:00 - +Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1987 only - Apr 12 3:00u 0 - Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - -Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S -Rule Chile 1990 only - Sep 16 4:00u 1:00 S +Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - +Rule Chile 1990 only - Sep 16 4:00u 1:00 - Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - -Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S +Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1997 only - Mar 30 3:00u 0 - Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - -Rule Chile 1998 only - Sep 27 4:00u 1:00 S +Rule Chile 1998 only - Sep 27 4:00u 1:00 - Rule Chile 1999 only - Apr 4 3:00u 0 - -Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S +Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - # N.B.: the end of March 29 in Chile is March 30 in Universal time, # which is used below in specifying the transition. @@ -1262,11 +1262,11 @@ Rule Chile 2008 only - Mar 30 3:00u 0 - Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - Rule Chile 2011 only - May Sun>=2 3:00u 0 - -Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S +Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - -Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S +Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - Rule Chile 2016 max - May Sun>=9 3:00u 0 - -Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S +Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1331,7 +1331,7 @@ Zone Antarctica/Palmer 0 - -00 1965 # "A variation of fifteen minutes in the public clocks of Bogota is not rare." # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule CO 1992 only - May 3 0:00 1:00 S +Rule CO 1992 only - May 3 0:00 1:00 - Rule CO 1993 only - Apr 4 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 @@ -1391,7 +1391,7 @@ Link America/Curacao America/Kralendijk # Caribbean Netherlands # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Ecuador 1992 only - Nov 28 0:00 1:00 S +Rule Ecuador 1992 only - Nov 28 0:00 1:00 - Rule Ecuador 1993 only - Feb 5 0:00 0 - # # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1485,18 +1485,18 @@ Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno # until advised differently (to apply for 2012 and beyond, after the 2011 # experiment was apparently successful.) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S +Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - -Rule Falk 1939 only - Oct 1 0:00 1:00 S -Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S +Rule Falk 1939 only - Oct 1 0:00 1:00 - +Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - Rule Falk 1943 only - Jan 1 0:00 0 - -Rule Falk 1983 only - Sep lastSun 0:00 1:00 S +Rule Falk 1983 only - Sep lastSun 0:00 1:00 - Rule Falk 1984 1985 - Apr lastSun 0:00 0 - -Rule Falk 1984 only - Sep 16 0:00 1:00 S -Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S +Rule Falk 1984 only - Sep 16 0:00 1:00 - +Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - -Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S +Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time @@ -1531,16 +1531,16 @@ Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown # adjust their clocks at 0 hour of the given dates. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Para 1975 1988 - Oct 1 0:00 1:00 S +Rule Para 1975 1988 - Oct 1 0:00 1:00 - Rule Para 1975 1978 - Mar 1 0:00 0 - Rule Para 1979 1991 - Apr 1 0:00 0 - -Rule Para 1989 only - Oct 22 0:00 1:00 S -Rule Para 1990 only - Oct 1 0:00 1:00 S -Rule Para 1991 only - Oct 6 0:00 1:00 S +Rule Para 1989 only - Oct 22 0:00 1:00 - +Rule Para 1990 only - Oct 1 0:00 1:00 - +Rule Para 1991 only - Oct 6 0:00 1:00 - Rule Para 1992 only - Mar 1 0:00 0 - -Rule Para 1992 only - Oct 5 0:00 1:00 S +Rule Para 1992 only - Oct 5 0:00 1:00 - Rule Para 1993 only - Mar 31 0:00 0 - -Rule Para 1993 1995 - Oct 1 0:00 1:00 S +Rule Para 1993 1995 - Oct 1 0:00 1:00 - Rule Para 1994 1995 - Feb lastSun 0:00 0 - Rule Para 1996 only - Mar 1 0:00 0 - # IATA SSIM (2000-02) says 1999-10-10; ignore this for now. @@ -1558,7 +1558,7 @@ Rule Para 1996 only - Mar 1 0:00 0 - # year, the time will change on the first Sunday of October; likewise, the # clock will be set back on the first Sunday of March. # -Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S +Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. Rule Para 1997 only - Feb lastSun 0:00 0 - # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but @@ -1569,7 +1569,7 @@ Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - # dst method to be from the first Sunday in September to the first Sunday in # April. Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - -Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S +Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - # # From Jesper Nørgaard Welen (2005-01-02): # There are several sources that claim that Paraguay made @@ -1578,7 +1578,7 @@ Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S # Decree 1,867 (2004-03-05) # From Carlos Raúl Perasso via Jesper Nørgaard Welen (2006-10-13) # http://www.presidencia.gov.py/decretos/D1867.pdf -Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S +Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # From Carlos Raúl Perasso (2010-02-18): # By decree number 3958 issued yesterday @@ -1591,7 +1591,7 @@ Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # and that on the first Sunday of the month of October, it is to be set # forward 60 minutes, in all the territory of the Paraguayan Republic. # ... -Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S +Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - # # From Steffen Thorsen (2013-03-07): @@ -1624,16 +1624,16 @@ Zone America/Asuncion -3:50:40 - LMT 1890 # Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Peru 1938 only - Jan 1 0:00 1:00 S +Rule Peru 1938 only - Jan 1 0:00 1:00 - Rule Peru 1938 only - Apr 1 0:00 0 - -Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S +Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - -Rule Peru 1986 1987 - Jan 1 0:00 1:00 S +Rule Peru 1986 1987 - Jan 1 0:00 1:00 - Rule Peru 1986 1987 - Apr 1 0:00 0 - -Rule Peru 1990 only - Jan 1 0:00 1:00 S +Rule Peru 1990 only - Jan 1 0:00 1:00 - Rule Peru 1990 only - Apr 1 0:00 0 - # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. -Rule Peru 1994 only - Jan 1 0:00 1:00 S +Rule Peru 1994 only - Jan 1 0:00 1:00 - Rule Peru 1994 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Lima -5:08:12 - LMT 1890 @@ -1682,55 +1682,55 @@ Link America/Port_of_Spain America/Tortola # Virgin Islands (UK) # From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Whitman gives 1923 Oct 1; go with Shanks & Pottenger. -Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS +Rule Uruguay 1923 only - Oct 2 0:00 0:30 - Rule Uruguay 1924 1926 - Apr 1 0:00 0 - -Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS -Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS +Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 - +Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 - # Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - -Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS +Rule Uruguay 1936 only - Nov 1 0:00 0:30 - Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - # Whitman gives 1937 Oct 3; go with Shanks & Pottenger. -Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS +Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 - # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, # and 1943 Apr 13 "to present time"; go with Shanks & Pottenger. -Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS +Rule Uruguay 1941 only - Aug 1 0:00 0:30 - Rule Uruguay 1942 only - Jan 1 0:00 0 - -Rule Uruguay 1942 only - Dec 14 0:00 1:00 S +Rule Uruguay 1942 only - Dec 14 0:00 1:00 - Rule Uruguay 1943 only - Mar 14 0:00 0 - -Rule Uruguay 1959 only - May 24 0:00 1:00 S +Rule Uruguay 1959 only - May 24 0:00 1:00 - Rule Uruguay 1959 only - Nov 15 0:00 0 - -Rule Uruguay 1960 only - Jan 17 0:00 1:00 S +Rule Uruguay 1960 only - Jan 17 0:00 1:00 - Rule Uruguay 1960 only - Mar 6 0:00 0 - -Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S +Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 - Rule Uruguay 1965 only - Sep 26 0:00 0 - Rule Uruguay 1966 1967 - Oct 31 0:00 0 - -Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS +Rule Uruguay 1968 1970 - May 27 0:00 0:30 - Rule Uruguay 1968 1970 - Dec 2 0:00 0 - -Rule Uruguay 1972 only - Apr 24 0:00 1:00 S +Rule Uruguay 1972 only - Apr 24 0:00 1:00 - Rule Uruguay 1972 only - Aug 15 0:00 0 - -Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS -Rule Uruguay 1974 only - Dec 22 0:00 1:00 S +Rule Uruguay 1974 only - Mar 10 0:00 0:30 - +Rule Uruguay 1974 only - Dec 22 0:00 1:00 - Rule Uruguay 1976 only - Oct 1 0:00 0 - -Rule Uruguay 1977 only - Dec 4 0:00 1:00 S +Rule Uruguay 1977 only - Dec 4 0:00 1:00 - Rule Uruguay 1978 only - Apr 1 0:00 0 - -Rule Uruguay 1979 only - Oct 1 0:00 1:00 S +Rule Uruguay 1979 only - Oct 1 0:00 1:00 - Rule Uruguay 1980 only - May 1 0:00 0 - -Rule Uruguay 1987 only - Dec 14 0:00 1:00 S +Rule Uruguay 1987 only - Dec 14 0:00 1:00 - Rule Uruguay 1988 only - Mar 14 0:00 0 - -Rule Uruguay 1988 only - Dec 11 0:00 1:00 S +Rule Uruguay 1988 only - Dec 11 0:00 1:00 - Rule Uruguay 1989 only - Mar 12 0:00 0 - -Rule Uruguay 1989 only - Oct 29 0:00 1:00 S +Rule Uruguay 1989 only - Oct 29 0:00 1:00 - # Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - -Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S -Rule Uruguay 1992 only - Oct 18 0:00 1:00 S +Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - +Rule Uruguay 1992 only - Oct 18 0:00 1:00 - Rule Uruguay 1993 only - Feb 28 0:00 0 - # From Eduardo Cota (2004-09-20): # The Uruguayan government has decreed a change in the local time.... # http://www.presidencia.gub.uy/decretos/2004091502.htm -Rule Uruguay 2004 only - Sep 19 0:00 1:00 S +Rule Uruguay 2004 only - Sep 19 0:00 1:00 - # From Steffen Thorsen (2005-03-11): # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to # save energy ... it was postponed two weeks.... @@ -1740,7 +1740,7 @@ Rule Uruguay 2005 only - Mar 27 2:00 0 - # http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005… # This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at # 02:00 local time, official time in Uruguay will be at GMT -2. -Rule Uruguay 2005 only - Oct 9 2:00 1:00 S +Rule Uruguay 2005 only - Oct 9 2:00 1:00 - Rule Uruguay 2006 only - Mar 12 2:00 0 - # From Jesper Nørgaard Welen (2006-09-06): # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006… @@ -1755,7 +1755,7 @@ Rule Uruguay 2006 only - Mar 12 2:00 0 - # From Pablo Camargo (2015-07-13): # http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf # [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04] -Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S +Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - Rule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 - # This Zone can be simplified once we assume zic %z. -- 2.14.3

1 0