September 2018 - tz - lists.iana.org

proposed time zone package changes (Samoa, Factory, et al.)
by Arthur David Olson Aug. 28, 2019

Aug. 28, 2019

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,

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Big tech warns of 'Japan's millennium bug' ahead of Akihito's abdication
by Martin Burnicki April 30, 2019

April 30, 2019

Don't know if this has already been known, or if it's really relevant for this list, but ... "Big tech warns of 'Japan's millennium bug' ahead of Akihito's abdication" https://www.theguardian.com/technology/2018/jul/25/big-tech-warns-japan-mil… Martin -- Martin Burnicki Senior Software Engineer MEINBERG Funkuhren GmbH & Co. KG Email: martin.burnicki(a)meinberg.de Phone: +49 5281 9309-414 Linkedin: https://www.linkedin.com/in/martinburnicki/ Lange Wand 9, 31812 Bad Pyrmont, Germany Amtsgericht Hannover 17HRA 100322 Geschäftsführer/Managing Directors: Günter Meinberg, Werner Meinberg, Andre Hartmann, Heiko Gerstung Websites: https://www.meinberg.de https://www.meinbergglobal.com Training: https://www.meinberg.academy

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Brazilian state of Goiás may abolish DST
by World Time Zone April 27, 2019

April 27, 2019

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

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[PATCH] Support building zic.exe and zdump.exe natively on Windows with Visual Studio nmake.
by Manuela Friedrich Oct. 28, 2018

Oct. 28, 2018

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

Chile changes dates for DST from 2019
by Juan Correa Oct. 18, 2018

Oct. 18, 2018

As of moments ago, the Ministry of Energy in Chile has announced the new schema for DST. >From 2019, Chile will end DST (jump from UTC -3 to UTC -4) on the first sunday of April (2019-04-07T03:00:00Z); and will start DST (from UTC -4 to UTC -3) the first sunday of September (2019-09-08T04:00:00Z) Also, the Ministry (Susana Jimenez) announced this decision will stick until 2021; and that Magallanes will keep its own time zone (but there will be meetings to talk about this) Announcement in video (in spanish): https://twitter.com/MinEnergia/status/1029000399129374720 -- Juan Correa Poblete PS Labs (http://www.pslabs.cl)

5 5

Ethiopia local time
by admin＠afocha.com Oct. 13, 2018

Oct. 13, 2018

Greetings, Although Ethiopia is officially in East Africa Time (UTC +3:00), the local time used in the country adopts a different system where 6:00 AM is interpreted as 12:00 and socially used as such. People will see a clock with the time at 1:30, and they will say this is 7:30. The local time is used by businesses in the country and by government offices. Everyone generally does this conversion in their heads, so at times, someone who is unfamiliar with this system can end up inadvertently scheduling meetings for the wrong time. This method of time tracking was developed and maintained with the premise of associating the clock's starting point of 12:00 with sunrise, which is roughly taking place around 6:00 AM every day. So East Africa Time - 6:00 is the working time used by the vast majority of Ethiopians. Here's an article discussing this time system: https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-bet… Is it possible to include Ethiopia's local time system into the time zone database? If so, what are the requirements for submitting a new time zone? Thanks for your consideration. Regards, Khalid Duri

17 48

Re: [tz] Europe/Volgograd change from UTC+3 to UTC+4 from 28oct2018
by Paul Eggert Oct. 11, 2018

Oct. 11, 2018

Alexander Fetisov wrote: > Volgograd region in southern Russia (Europe/Volgograd) change timezone from > UTC+3 to UTC+4 from 28oct2018. > > http://sozd.parliament.gov.ru/bill/452878-7 Thanks for the heads-up and the URL. Its supporting info says the transition occurs at 02:00 that day, the usual practice in that region. That web page says "Находится на рассмотрении" which Google Translate renders as "Is pending", and it later says "Срок представления поправок 10.10.2018" which Google Translate renders as "Term for the submission of amendments 10/10/2018", so it sounds like the bill is under consideration but is not yet law and might be amended. Am I correct? If so, we need to know if and when the proposed change becomes definite. If we're pretty sure the law will go in as-is, we might want to update tzdb before October 10 since this is not much notice for downstream users.

3 9

FW: State of Palestine Time zone - need to update
by maysa＠mtit.gov.ps Oct. 10, 2018

Oct. 10, 2018

Dear Sir, I'm contacting you in regard to the time zone data base the field related to the state of Palestine, it's known that Palestine is recognized as a state and it has the Following ISO and Alpha codes, English short name (upper/lower case) Alpha-2 code <https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Officially_assigned_code_e lements> Alpha-3 code <https://en.wikipedia.org/wiki/ISO_3166-1_alpha-3#Officially_assigned_code_e lements> Numeric code <https://en.wikipedia.org/wiki/ISO_3166-1_numeric#Officially_assigned_code_e lements> Link to ISO 3166-2 <https://en.wikipedia.org/wiki/ISO_3166-2> subdivision codes <https://en.wikipedia.org/wiki/State_of_Palestine> State of Palestine <https://en.wikipedia.org/wiki/State_of_Palestine> Palestine, State of <https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#PS> PS PSE 275 <https://en.wikipedia.org/wiki/ISO_3166-2:PS> ISO 3166-2:PS PS-JEM Jerusalem <https://en.wikipedia.org/wiki/Jerusalem_Governorate> Al Quds I checked the published data regarding the time zones related to Palestine and noticed that it's not accurate, And hence I would like to ask for an update to the time zone data base related to Palestine to be as follow: PS State of Palestine Asia/AlQuds UTC +3:00 Instead of the following data : PS Palestinian Territory <https://timezonedb.com/time-zones/Asia/Gaza> Asia/Gaza UTC +03:00 PS Palestinian Territory <https://timezonedb.com/time-zones/Asia/Hebron> Asia/Hebron UTC +03:00 Kindly advise if any supporting documents, information or procedures are needed from our side. BR Maysa Monayer Telecom Administration - Deputy General Director Ministry of Telecom and IT (State of Palestine) Mobile: +970-562500044

2 3

Re： Inquiry to NICT about Japanese Summer time in 1948-1952.
by aya sekido Oct. 2, 2018

Oct. 2, 2018

Dear Nick, Thank you for your interest. We will respond to your inquiry. It is said that corresponding summer time was performed by instruction of the GHQ: General Headquarters (office of the Supreme Commander of the Allied Powers). We do not have detailed data about summer time then. According to the law of those days, the last day of summer time was made into 25 hours. What came after 12:59 p.m. of the last day was 00:00 a.m. of the next day. If you have any further questions, please let us know. Sincerely, Japan Standard Time Group Space-Time standards Laboratory Applied Electromagnetic Research Institute National Institute of Information and Communications Technology From: Phake Nick <c933103(a)gmail.com> Sent: Sunday, September 09, 2018 12:53 AM To: horonet(a)ml.nict.go.jp Cc: tz(a)iana.org Subject: [horonet 13333] Inquiry to NICT about Japanese Summer time in 1948-1952. To receivers of this email: Recently, I have read an article, which mentioned the history of Japanese Summer Time Implementation in the past at www.bengo4.com/internet/n_8461/ <http://www.bengo4.com/internet/n_8461/> . In the article, it was mentioned that the summer time (DST) end at 25 hours at the last day of the implementation period. Does that mean the clock would go up to the 25th hours back then and reach 24:59 before it continues toward 00:00 on the next day in standard time? If not then how did the clock switched from Summer Time back to Standard Time back then? Please use the "reply to all" function when replying to the message so that other receivers of the message can also hear answer on the matter. Sincerely, P.N.

6 13

stale leap seconds file at IETF
by Hal Murray Sept. 29, 2018

Sept. 29, 2018

From: https://www.ietf.org/timezones/data/leap-seconds.list # Updated through IERS Bulletin C55 # File expires on: 28 December 2018 >From ftp://ftp.nist.gov/pub/time/leap-seconds.list # Updated through IERS Bulletin C56 # File expires on: 28 June 2019 What's the procedure for getting the IETF copy updated? Is the TZ community maintaining that file or is somebody at the IETF responsible for tracking NIST? -- These are my opinions. I hate spam.

2 1

When will physics make 32-bit signed leap-second counts obsolete?
by Paul Eggert Sept. 27, 2018

Sept. 27, 2018

A while ago I vaguely remember a prediction on this list of when the TZif file format will become obsolete because we have accumulated 2**31 total leap seconds if we continue to just add leap seconds as needed to keep UTC roughly in sync with TAI. To some extent this is just a playful prediction, as the format will undoubtedly become obsolete for other reasons long before then, but it's still fun to predict. Unfortunately I don't remember the details, and a quick Google search didn't find it. Does anyone else remember this? If not, I'll have to recalculate. The topic has just come up again on the tzdist-bis mailing list, which is why I'm thinking about it again. See <https://mailarchive.ietf.org/arch/msg/tzdist-bis/Q7OVmd60wydqcJahS3QRNHwtXHM>.

3 2

another solar-based time proposal (not)
by scs＠eskimo.com Sept. 27, 2018

Sept. 27, 2018

Many have probably seen this, but I'm surprised no one has mentioned Monday's xkcd: https://xkcd.com/2050/

3 2

Samoa DST
by Vishal Vineet Kumar Sept. 25, 2018

Sept. 25, 2018

Hi Paul/Team, Kindly advice if there is a java patch available for upcoming DST in Samoa on 30th September. https://www.mcil.gov.ws/wp-content/uploads/2018/09/public-notice-_Daylight-… Thanks, Vishal. ________________________________ Notice of Confidentiality: The information contained in this communication is intended solely for the use of the individual or entity to whom it is addressed and others authorized to receive it. It may contain confidential or legally privileged information. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by responding to this email and then delete it from your system.

3 2

Timezone change for Turkey as of October 28, 2018
by Omer Sever Sept. 22, 2018

Sept. 22, 2018

Hello Paul, Turkey will set the clocks one hour back effective from October 28, 2018 at 04:00 AM I have not seen this change in the latest version of the timezone database and I wanted to inform about this change. Please find the government decision about the change: http://www.resmigazete.gov.tr/eskiler/2017/10/20171028-5.pdf Regards, Omer Sever

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Europe/Volgograd change from UTC+3 to UTC+4 from 28oct2018
by Alexander Fetisov Sept. 20, 2018

Sept. 20, 2018

Hi! Volgograd region in southern Russia (Europe/Volgograd) change timezone from UTC+3 to UTC+4 from 28oct2018. http://sozd.parliament.gov.ru/bill/452878-7 -- WBR, Aleksander

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[DRAFT] EU-related changes likely – here’s a heads-up
by Paul Eggert Sept. 19, 2018

Sept. 19, 2018

This set of changes is so experimental that I have not installed it into the development repository. I am circulating it to give people a heads-up for the sort of tzdb changes that are likely to occur if the recent European Commission proposal becomes official. Comments are welcome; please send them to tz(a)iana.org. * NEWS: Mention this. * africa (Africa/Cairo, Africa/Tripoli, Africa/El_Aaiun) (Africa/Tunis): * asia (Asia/Amman, Asia/Beirut, Asia/Gaza, Asia/Hebron) (Asia/Damascus): * europe (Europe/Kaliningrad): Switch from "WET"/"CET"/"EET" to numeric offsets around 2019-03-31. This sort of thing is also done in the other entries noted below, which have other stuff going on too. * africa (Africa/Casablanca): * asia (Asia/Nicosia, Asia/Famagusta): * backzone (Europe/Ljubljana, Europe/Sarajevo, Europe/Skopje) (Europe/Vaduz, Europe/Zagreb): * europe (Europe/Tirane, Europe/Andorra, Europe/Vienna) (Europe/Brussels, Europe/Sofia, Europe/Prague, Europe/Copenhagen) (Atlantic/Faroe, America/Scoresbysund, America/Godthab) (Europe/Tallinn, Europe/Helsinki, Europe/Paris, Europe/Berlin) (Europe/Athens, Europe/Budapest, Europe/Rome, Europe/Riga) (Europe/Vilnius, Europe/Luxembourg, Europe/Malta, Europe/Monaco) (Europe/Amsterdam, Europe/Oslo, Europe/Lisbon, Atlantic/Azores) (Atlantic/Madeira, Europe/Bucharest, Europe/Belgrade, Europe/Madrid) (Africa/Ceuta, Atlantic/Canary, Europe/Stockholm, Europe/Zurich) (Europe/Kiev, Europe/Uzhgorod, Europe/Zaporozhye): Assume these locations will not exercise the draft directive’s option, and so will move their time zone one hour east. * asia (EUAsia, E-EurAsia): Stay in sync with EU and E-Eur rules in ‘europe’. * backzone (Europe/Belfast, Europe/Guernsey, Europe/Isle_of_Man): * europe (Europe/London, Europe/Gibraltar): Assume the UK, Crown dependencies and Gibraltar will roll along as before. * europe (UK): New rule. (Eire, EU, W-Eur, C-Eur): Stop DST in 2019. (Europe/Dublin): Switch to plain IST (a standard time) in 2019. (America/Danmarkshavn): Use numeric abbreviation for consistency with other locations in Greenland. * zic.8: Adjust example to match new data. * ziguard.awk (Zone_Dublin_post_1968): No longer a need for special treatment for last line of Dublin zone. --- NEWS | 55 +++++++++++++++++++ africa | 36 ++++++------ asia | 31 +++++++---- backzone | 27 ++++++--- europe | 154 ++++++++++++++++++++++++++++++++++------------------ zic.8 | 19 +++++-- ziguard.awk | 2 +- 7 files changed, 223 insertions(+), 101 deletions(-) diff --git a/NEWS b/NEWS index 99040dc..ba0772b 100644 --- a/NEWS +++ b/NEWS @@ -8,6 +8,61 @@ Unreleased, experimental changes Changes to future timestamps + The European Commission has proposed to end DST in March 2019. See: + https://ec.europa.eu/commission/priorities/state-union-speeches/state-union… + Under this proposal, EU member states will advance their clocks by + an hour at 2019-03-31 01:00 UTC as usual, and will have the option + to move their clocks back an hour at 2019-10-27 01:00 UTC; member + states must announce by 2019-03-31 whether they are taking the + option. After 2019-10-27 no seasonal changes will be permitted; + member states can make one-off changes but must give six months' + notice. (Thanks to Even Scharning for the URL and for Clive + D.W. Feather for summarizing the proposal.) For now, make the + following guesses about how this proposal will play out (and + please remember that these are just guesses, some of which will + surely be wrong): + + * The European Parliament and the Council will approve the proposal. + + * No member state will exercise the option of moving clocks back + on 2019-10-27. + + * Every member state but Ireland will therefore make its last + transition by advancing standard time by an hour (i.e., moving + east by one time zone) on 2019-03-31. + + * Ireland's usual transition from winter to standard time on + 2019-03-31 will be its last transition. + + * The following nearby countries that use EU or near-EU rules + will also stop using DST and move east one time zone: + Albania, Andorra, Bosnia & Herzegovina, Bulgaria, Croatia, the + Czech Republic, the Faroes, most of Greenland, Liechtenstein, + (Northern) Macedonia, Moldova, Monaco, Montenegro, Morocco, + Norway, Romania, San Marino, Serbia, Switzerland, Ukraine, + Vatican City, and Western Sahara. + + * Brexit will occur at 2019-03-29 23:00 UTC, and DST will continue + to be observed in the UK, the Crown dependencies and Gibraltar. + + * Akrotiri and Dhekelia (which do not have separate tzdb entries) + will continue to track Nicosia. + + * Use numeric offsets for abbreviations in the new zones, as it is + too early to know what English-language abbreviations (if any) + will be used. For example, if Spain stays at +02 all year, it's + not clear whether people will call its time "Eastern European + Time" (a geographic misnomer) or some other name. Although + eventually we should be consistent about time zone abbreviations + used for past and modern timestamps, for now let's leave the + abbreviations alone for timestamps before 2019-03-31. + + * However, the backward-compatibility zones WET, CET, MET, and EET + will keep their UTC offsets and traditional abbreviations, and + will observe DST as before in 2019 and will stay on standard + time thereafter, so that they can remain fallbacks for + traditionalists. + Fiji ends DST 2019-01-13 instead of the 2019-01-20 previously predicted. (Thanks to Raymond Kumar.) Adjust future predictions accordingly. diff --git a/africa b/africa index 555052b..9013b30 100644 --- a/africa +++ b/africa @@ -99,7 +99,8 @@ Zone Africa/Algiers 0:12:12 - LMT 1891 Mar 15 0:01 0:00 Algeria WE%sT 1977 Oct 21 1:00 Algeria CE%sT 1979 Oct 26 0:00 Algeria WE%sT 1981 May - 1:00 - CET + 1:00 - CET 2019 Mar 31 1:00u + 1:00 - +01 # Angola # Benin @@ -358,7 +359,8 @@ Rule Egypt 2014 only - Sep lastThu 24:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Cairo 2:05:09 - LMT 1900 Oct - 2:00 Egypt EE%sT + 2:00 Egypt EE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Equatorial Guinea # See Africa/Lagos. @@ -525,7 +527,8 @@ Zone Africa/Tripoli 0:52:44 - LMT 1920 1:00 Libya CE%sT 1997 Oct 4 2:00 - EET 2012 Nov 10 2:00 1:00 Libya CE%sT 2013 Oct 25 2:00 - 2:00 - EET + 2:00 - EET 2019 Mar 31 1:00u + 2:00 - +02 # Madagascar # See Africa/Nairobi. @@ -869,6 +872,9 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis # (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a)) # (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b))))) # (setq islamic-year (+ 1 islamic-year)))) +# From Paul Eggert (2019-09-15): +# Guess Morocco will stop observing DST in 2019, along with the EU, +# so omit the above program's output after 2018. # RULE NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -901,7 +907,7 @@ Rule Morocco 2012 only - Aug 20 2:00 1:00 S Rule Morocco 2012 only - Sep 30 3:00 0 - Rule Morocco 2013 only - Jul 7 3:00 0 - Rule Morocco 2013 only - Aug 10 2:00 1:00 S -Rule Morocco 2013 max - Oct lastSun 3:00 0 - +Rule Morocco 2013 2018 - Oct lastSun 3:00 0 - Rule Morocco 2014 2021 - Mar lastSun 2:00 1:00 S Rule Morocco 2014 only - Jun 28 3:00 0 - Rule Morocco 2014 only - Aug 2 2:00 1:00 S @@ -913,25 +919,13 @@ Rule Morocco 2017 only - May 21 3:00 0 - Rule Morocco 2017 only - Jul 2 2:00 1:00 S Rule Morocco 2018 only - May 13 3:00 0 - Rule Morocco 2018 only - Jun 17 2:00 1:00 S -Rule Morocco 2019 only - May 5 3:00 0 - -Rule Morocco 2019 only - Jun 9 2:00 1:00 S -Rule Morocco 2020 only - Apr 19 3:00 0 - -Rule Morocco 2020 only - May 24 2:00 1:00 S -Rule Morocco 2021 only - Apr 11 3:00 0 - -Rule Morocco 2021 only - May 16 2:00 1:00 S -Rule Morocco 2022 only - May 8 2:00 1:00 S -Rule Morocco 2023 only - Apr 23 2:00 1:00 S -Rule Morocco 2024 only - Apr 14 2:00 1:00 S -Rule Morocco 2025 only - Apr 6 2:00 1:00 S -Rule Morocco 2026 max - Mar lastSun 2:00 1:00 S -Rule Morocco 2036 only - Oct 19 3:00 0 - -Rule Morocco 2037 only - Oct 4 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26 0:00 Morocco WE%sT 1984 Mar 16 1:00 - CET 1986 - 0:00 Morocco WE%sT + 0:00 Morocco WE%sT 2019 Mar 31 1:00u + 1:00 - +01 # Western Sahara # @@ -946,7 +940,8 @@ Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26 Zone Africa/El_Aaiun -0:52:48 - LMT 1934 Jan # El Aaiún -1:00 - -01 1976 Apr 14 - 0:00 Morocco WE%sT + 0:00 Morocco WE%sT 2019 Mar 31 1:00u + 0:00 Morocco +00/+01 # Mozambique # @@ -1286,7 +1281,8 @@ Rule Tunisia 2006 2008 - Oct lastSun 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Tunis 0:40:44 - LMT 1881 May 12 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time - 1:00 Tunisia CE%sT + 1:00 Tunisia CE%sT 2019 Mar 31 1:00u + 1:00 - +01 # Uganda # See Africa/Nairobi. diff --git a/asia b/asia index 5e27d85..5a97b9e 100644 --- a/asia +++ b/asia @@ -71,12 +71,12 @@ # These rules are stolen from the 'europe' file. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S +Rule EUAsia 1981 2019 - 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 - +Rule EUAsia 1996 2019 - Oct lastSun 1:00u 0 - +Rule E-EurAsia 1981 2019 - 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 E-EurAsia 1996 2019 - Oct lastSun 0:00 0 - 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 - @@ -944,12 +944,14 @@ Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14 2:00 Cyprus EE%sT 1998 Sep - 2:00 EUAsia EE%sT + 2:00 EUAsia EE%sT 2019 Mar 31 1:00u + 3:00 - +03 Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14 2:00 Cyprus EE%sT 1998 Sep 2:00 EUAsia EE%sT 2016 Sep 8 - 3:00 - +03 2017 Oct 29 1:00u - 2:00 EUAsia EE%sT + 3:00 - +03 2017 Oct 29 1:00u + 2:00 EUAsia EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72. # However, for various reasons many users expect to find it under Europe. @@ -1750,7 +1752,8 @@ Rule Jordan 2014 max - Mar lastThu 24:00 1:00 S Rule Jordan 2014 max - Oct lastFri 0:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Amman 2:23:44 - LMT 1931 - 2:00 Jordan EE%sT + 2:00 Jordan EE%sT 2019 Mar 28 24:00 + 2:00 Jordan +02/+03 # Kazakhstan @@ -2190,7 +2193,8 @@ Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 - Rule Lebanon 1999 max - Oct lastSun 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Beirut 2:22:00 - LMT 1880 - 2:00 Lebanon EE%sT + 2:00 Lebanon EE%sT 2019 Mar 31 0:00 + 2:00 Lebanon +02/+03 # Malaysia # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -2866,14 +2870,16 @@ Zone Asia/Gaza 2:17:52 - LMT 1900 Oct 2:00 - EET 2010 Mar 27 0:01 2:00 Palestine EE%sT 2011 Aug 1 2:00 - EET 2012 - 2:00 Palestine EE%sT + 2:00 Palestine EE%sT 2019 Mar 23 1:00 + 2:00 Palestine +02/+03 Zone Asia/Hebron 2:20:23 - LMT 1900 Oct 2:00 Zion EET/EEST 1948 May 15 2:00 EgyptAsia EE%sT 1967 Jun 5 2:00 Zion I%sT 1996 2:00 Jordan EE%sT 1999 - 2:00 Palestine EE%sT + 2:00 Palestine EE%sT 2019 Mar 23 1:00 + 2:00 Palestine +02/+03 # Paracel Is # no information @@ -3224,7 +3230,8 @@ Rule Syria 2009 max - Oct lastFri 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq - 2:00 Syria EE%sT + 2:00 Syria EE%sT 2019 Mar 29 0:00 + 2:00 Syria +02/+03 # Tajikistan # From Shanks & Pottenger. diff --git a/backzone b/backzone index 97792b1..349aaae 100644 --- a/backzone +++ b/backzone @@ -560,7 +560,8 @@ Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2 0:00 GB-Eire %s 1968 Oct 27 1:00 - BST 1971 Oct 31 2:00u 0:00 GB-Eire %s 1996 - 0:00 EU GMT/BST + 0:00 EU GMT/BST 2019 Mar 29 23:00u # Brexit + 0:00 UK GMT/BST # Guernsey # Data from Joseph S. Myers @@ -573,7 +574,8 @@ Zone Europe/Guernsey -0:10:09 - LMT 1913 Jun 18 0:00 GB-Eire %s 1968 Oct 27 1:00 - BST 1971 Oct 31 2:00u 0:00 GB-Eire %s 1996 - 0:00 EU GMT/BST + 0:00 EU GMT/BST 2019 Mar 29 23:00u # Brexit + 0:00 UK GMT/BST # Isle of Man # @@ -594,7 +596,8 @@ Zone Europe/Isle_of_Man -0:17:55 - LMT 1883 Mar 30 0:00s 0:00 GB-Eire %s 1968 Oct 27 1:00 - BST 1971 Oct 31 2:00u 0:00 GB-Eire %s 1996 - 0:00 EU GMT/BST + 0:00 EU GMT/BST 2019 Mar 29 23:00u # Brexit + 0:00 UK GMT/BST # Jersey # Data from Joseph S. Myers @@ -607,7 +610,8 @@ Zone Europe/Jersey -0:08:26 - LMT 1898 Jun 11 16:00u 0:00 GB-Eire %s 1968 Oct 27 1:00 - BST 1971 Oct 31 2:00u 0:00 GB-Eire %s 1996 - 0:00 EU GMT/BST + 0:00 EU GMT/BST 2019 Mar 29 23:00u # Brexit + 0:00 UK GMT/BST # Slovenia Zone Europe/Ljubljana 0:58:04 - LMT 1884 @@ -615,7 +619,8 @@ Zone Europe/Ljubljana 0:58:04 - LMT 1884 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s 1:00 - CET 1982 Nov 27 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Bosnia and Herzegovina Zone Europe/Sarajevo 1:13:40 - LMT 1884 @@ -623,7 +628,8 @@ Zone Europe/Sarajevo 1:13:40 - LMT 1884 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s 1:00 - CET 1982 Nov 27 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Macedonia Zone Europe/Skopje 1:25:44 - LMT 1884 @@ -631,7 +637,8 @@ Zone Europe/Skopje 1:25:44 - LMT 1884 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s 1:00 - CET 1982 Nov 27 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Moldova / Transnistria Zone Europe/Tiraspol 1:58:32 - LMT 1880 @@ -647,7 +654,8 @@ Zone Europe/Tiraspol 1:58:32 - LMT 1880 # Liechtenstein Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun 1:00 - CET 1981 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Croatia Zone Europe/Zagreb 1:03:52 - LMT 1884 @@ -655,7 +663,8 @@ Zone Europe/Zagreb 1:03:52 - LMT 1884 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s 1:00 - CET 1982 Nov 27 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Madagascar Zone Indian/Antananarivo 3:10:04 - LMT 1911 Jul diff --git a/europe b/europe index e5017c2..1d8f201 100644 --- a/europe +++ b/europe @@ -500,12 +500,16 @@ Rule GB-Eire 1990 1995 - Oct Sun>=22 1:00u 0 GMT # # Use Europe/London for Jersey, Guernsey, and the Isle of Man. +Rule UK 2019 max - Mar lastSun 1:00u 1:00 - +Rule UK 2019 max - Oct lastSun 1:00u 0 - + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/London -0:01:15 - LMT 1847 Dec 1 0:00s 0:00 GB-Eire %s 1968 Oct 27 1:00 - BST 1971 Oct 31 2:00u 0:00 GB-Eire %s 1996 - 0:00 EU GMT/BST + 0:00 EU GMT/BST 2019 Mar 29 23:00u # Brexit + 0:00 UK GMT/BST Link Europe/London Europe/Jersey Link Europe/London Europe/Guernsey Link Europe/London Europe/Isle_of_Man @@ -533,10 +537,10 @@ Link Europe/London Europe/Isle_of_Man Rule Eire 1971 only - Oct 31 2:00u -1:00 - Rule Eire 1972 1980 - Mar Sun>=16 2:00u 0 - Rule Eire 1972 1980 - Oct Sun>=23 2:00u -1:00 - -Rule Eire 1981 max - Mar lastSun 1:00u 0 - +Rule Eire 1981 2019 - Mar lastSun 1:00u 0 - Rule Eire 1981 1989 - Oct Sun>=23 1:00u -1:00 - Rule Eire 1990 1995 - Oct Sun>=22 1:00u -1:00 - -Rule Eire 1996 max - Oct lastSun 1:00u -1:00 - +Rule Eire 1996 2019 - Oct lastSun 1:00u -1:00 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2 @@ -550,11 +554,12 @@ Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2 0:00 - GMT 1948 Apr 18 2:00s 0:00 GB-Eire GMT/IST 1968 Oct 27 # The next line is for when negative SAVE values are used. - 1:00 Eire IST/GMT + 1:00 Eire IST/GMT 2019 Mar 31 1:00u # These three lines are for when SAVE values are always nonnegative. # 1:00 - IST 1971 Oct 31 2:00u # 0:00 GB-Eire GMT/IST 1996 -# 0:00 EU GMT/IST +# 0:00 EU GMT/IST 2019 Mar 31 1:00u + 1:00 - IST ############################################################################### @@ -570,20 +575,23 @@ Rule EU 1977 1980 - Apr Sun>=1 1:00u 1:00 S Rule EU 1977 only - Sep lastSun 1:00u 0 - Rule EU 1978 only - Oct 1 1:00u 0 - Rule EU 1979 1995 - Sep lastSun 1:00u 0 - -Rule EU 1981 max - Mar lastSun 1:00u 1:00 S -Rule EU 1996 max - Oct lastSun 1:00u 0 - -# The most recent directive covers the years starting in 2002. See: +Rule EU 1981 2019 - Mar lastSun 1:00u 1:00 S +Rule EU 1996 2019 - Oct lastSun 1:00u 0 - +# The last summer time directive covers 2002-2019. See: # Directive 2000/84/EC of the European Parliament and of the Council # of 19 January 2001 on summer-time arrangements. # http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32000L0084:EN:N… +# The above ruleset assumes that the 2018-09-12 European Commission proposal to +# abolish DST will take effect unmodified; see +# https://ec.europa.eu/commission/sites/beta-political/files/soteu2018-discon… # W-Eur differs from EU only in that W-Eur uses standard time. Rule W-Eur 1977 1980 - Apr Sun>=1 1:00s 1:00 S Rule W-Eur 1977 only - Sep lastSun 1:00s 0 - Rule W-Eur 1978 only - Oct 1 1:00s 0 - Rule W-Eur 1979 1995 - Sep lastSun 1:00s 0 - -Rule W-Eur 1981 max - Mar lastSun 1:00s 1:00 S -Rule W-Eur 1996 max - Oct lastSun 1:00s 0 - +Rule W-Eur 1981 2019 - Mar lastSun 1:00s 1:00 S +Rule W-Eur 1996 2019 - Oct lastSun 1:00s 0 - # Older C-Eur rules are for convenience in the tables. # From 1977 on, C-Eur differs from EU only in that C-Eur uses standard time. @@ -641,8 +649,8 @@ Rule C-Eur 1977 1980 - Apr Sun>=1 2:00s 1:00 S Rule C-Eur 1977 only - Sep lastSun 2:00s 0 - Rule C-Eur 1978 only - Oct 1 2:00s 0 - Rule C-Eur 1979 1995 - Sep lastSun 2:00s 0 - -Rule C-Eur 1981 max - Mar lastSun 2:00s 1:00 S -Rule C-Eur 1996 max - Oct lastSun 2:00s 0 - +Rule C-Eur 1981 2019 - Mar lastSun 2:00s 1:00 S +Rule C-Eur 1996 2019 - Oct lastSun 2:00s 0 - # E-Eur differs from EU only in that E-Eur switches at midnight local time. Rule E-Eur 1977 1980 - Apr Sun>=1 0:00 1:00 S @@ -801,14 +809,16 @@ Rule Albania 1984 only - Apr 1 0:00 1:00 S Zone Europe/Tirane 1:19:20 - LMT 1914 1:00 - CET 1940 Jun 16 1:00 Albania CE%sT 1984 Jul - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Andorra # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Andorra 0:06:04 - LMT 1901 0:00 - WET 1946 Sep 30 1:00 - CET 1985 Mar 31 2:00 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Austria @@ -838,7 +848,8 @@ Zone Europe/Vienna 1:05:21 - LMT 1893 Apr 1:00 1:00 CEST 1945 Apr 12 2:00s 1:00 - CET 1946 1:00 Austria CE%sT 1981 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Belarus # @@ -935,7 +946,8 @@ Zone Europe/Brussels 0:17:30 - LMT 1880 0:00 Belgium WE%sT 1940 May 20 2:00s 1:00 C-Eur CE%sT 1944 Sep 3 1:00 Belgium CE%sT 1977 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Bosnia and Herzegovina # See Europe/Belgrade. @@ -963,7 +975,8 @@ Zone Europe/Sofia 1:33:16 - LMT 1880 2:00 Bulg EE%sT 1982 Sep 26 3:00 2:00 C-Eur EE%sT 1991 2:00 E-Eur EE%sT 1997 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Croatia # See Europe/Belgrade. @@ -997,7 +1010,8 @@ Zone Europe/Prague 0:57:44 - LMT 1850 # 0:00 - GMT 1947 Feb 23 2:00 # End of rearguard section. 1:00 Czech CE%sT 1979 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Use Europe/Prague also for Slovakia. # Denmark, Faroe Islands, and Greenland @@ -1054,10 +1068,12 @@ Zone Europe/Copenhagen 0:50:20 - LMT 1890 1:00 Denmark CE%sT 1942 Nov 2 2:00s 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1:00 Denmark CE%sT 1980 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 Zone Atlantic/Faroe -0:27:04 - LMT 1908 Jan 11 # Tórshavn 0:00 - WET 1981 - 0:00 EU WE%sT + 0:00 EU WE%sT 2019 Mar 31 1:00u + 1:00 - +01 # # From Paul Eggert (2004-10-31): # During World War II, Germany maintained secret manned weather stations in @@ -1149,14 +1165,16 @@ Rule Thule 2007 max - Nov Sun>=1 2:00 0 S Zone America/Danmarkshavn -1:14:40 - LMT 1916 Jul 28 -3:00 - -03 1980 Apr 6 2:00 -3:00 EU -03/-02 1996 - 0:00 - GMT + 0:00 - +00 Zone America/Scoresbysund -1:27:52 - LMT 1916 Jul 28 # Ittoqqortoormiit -2:00 - -02 1980 Apr 6 2:00 -2:00 C-Eur -02/-01 1981 Mar 29 - -1:00 EU -01/+00 + -1:00 EU -01/+00 2019 Mar 31 1:00u + 0:00 - +00 Zone America/Godthab -3:26:56 - LMT 1916 Jul 28 # Nuuk -3:00 - -03 1980 Apr 6 2:00 - -3:00 EU -03/-02 + -3:00 EU -03/-02 2019 Mar 31 1:00u + -2:00 - -02 Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base -4:00 Thule A%sT @@ -1224,7 +1242,8 @@ Zone Europe/Tallinn 1:39:00 - LMT 1880 2:00 C-Eur EE%sT 1998 Sep 22 2:00 EU EE%sT 1999 Oct 31 4:00 2:00 - EET 2002 Feb 21 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Finland @@ -1278,7 +1297,8 @@ Rule Finland 1981 1982 - Sep lastSun 3:00 0 - Zone Europe/Helsinki 1:39:49 - LMT 1878 May 31 1:39:49 - HMT 1921 May # Helsinki Mean Time 2:00 Finland EE%sT 1983 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Åland Is Link Europe/Helsinki Europe/Mariehamn @@ -1374,7 +1394,8 @@ Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01 1:00 C-Eur CE%sT 1944 Aug 25 0:00 France WE%sT 1945 Sep 16 3:00 1:00 France CE%sT 1977 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Germany @@ -1417,7 +1438,8 @@ Zone Europe/Berlin 0:53:28 - LMT 1893 Apr 1:00 C-Eur CE%sT 1945 May 24 2:00 1:00 SovietZone CE%sT 1946 1:00 Germany CE%sT 1980 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # From Tobias Conradi (2011-09-12): # Büsingen <http://www.buesingen.de>, surrounded by the Swiss canton @@ -1444,7 +1466,8 @@ Link Europe/Zurich Europe/Busingen Zone Europe/Gibraltar -0:21:24 - LMT 1880 Aug 2 0:00s 0:00 GB-Eire %s 1957 Apr 14 2:00 1:00 - CET 1982 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 1:00 UK +01/+02 # Greece # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -1479,7 +1502,8 @@ Zone Europe/Athens 1:34:52 - LMT 1895 Sep 14 2:00 Greece EE%sT 1981 # Shanks & Pottenger say it switched to C-Eur in 1981; # go with EU rules instead, since Greece joined Jan 1. - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Hungary # From Paul Eggert (2014-07-15): @@ -1514,7 +1538,8 @@ Zone Europe/Budapest 1:16:20 - LMT 1890 Oct 1:00 Hungary CE%sT 1941 Apr 8 1:00 C-Eur CE%sT 1945 1:00 Hungary CE%sT 1980 Sep 28 2:00s - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Iceland # @@ -1662,7 +1687,8 @@ Zone Europe/Rome 0:49:56 - LMT 1866 Sep 22 1:00 Italy CE%sT 1943 Sep 10 1:00 C-Eur CE%sT 1944 Jun 4 1:00 Italy CE%sT 1980 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 Link Europe/Rome Europe/Vatican Link Europe/Rome Europe/San_Marino @@ -1747,7 +1773,8 @@ Zone Europe/Riga 1:36:34 - LMT 1880 2:00 Latvia EE%sT 1997 Jan 21 2:00 EU EE%sT 2000 Feb 29 2:00 - EET 2001 Jan 2 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Liechtenstein @@ -1817,7 +1844,8 @@ Zone Europe/Vilnius 1:41:16 - LMT 1880 2:00 - EET 1998 Mar 29 1:00u 1:00 EU CE%sT 1999 Oct 31 1:00u 2:00 - EET 2003 Jan 1 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Luxembourg # Whitman disagrees with most of these dates in minor ways; @@ -1853,7 +1881,8 @@ Zone Europe/Luxembourg 0:24:36 - LMT 1904 Jun 0:00 Belgium WE%sT 1940 May 14 3:00 1:00 C-Eur WE%sT 1944 Sep 18 3:00 1:00 Belgium CE%sT 1977 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Macedonia # See Europe/Belgrade. @@ -1875,7 +1904,8 @@ Rule Malta 1980 only - Mar 31 2:00 1:00 S Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta 1:00 Italy CE%sT 1973 Mar 31 1:00 Malta CE%sT 1981 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Moldova @@ -1961,7 +1991,8 @@ Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time 0:00 France WE%sT 1945 Sep 16 3:00 1:00 France CE%sT 1977 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Montenegro # See Europe/Belgrade. @@ -2038,7 +2069,8 @@ Zone Europe/Amsterdam 0:19:32 - LMT 1835 0:20 Neth +0020/+0120 1940 May 16 0:00 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1:00 Neth CE%sT 1977 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Norway # http://met.no/met/met_lex/q_u/sommertid.html (2004-01) agrees with Shanks & @@ -2056,7 +2088,8 @@ Zone Europe/Oslo 0:43:00 - LMT 1895 Jan 1 1:00 Norway CE%sT 1940 Aug 10 23:00 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1:00 Norway CE%sT 1980 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Svalbard & Jan Mayen @@ -2151,7 +2184,8 @@ Zone Europe/Warsaw 1:24:00 - LMT 1880 1:00 C-Eur CE%sT 1944 Oct 1:00 Poland CE%sT 1977 1:00 W-Eur CE%sT 1988 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Portugal @@ -2255,7 +2289,8 @@ Zone Europe/Lisbon -0:36:45 - LMT 1884 0:00 Port WE%sT 1983 Sep 25 1:00s 0:00 W-Eur WE%sT 1992 Sep 27 1:00s 1:00 EU CE%sT 1996 Mar 31 1:00u - 0:00 EU WE%sT + 0:00 EU WE%sT 2019 Mar 31 1:00u + 1:00 - +01 # This Zone can be simplified once we assume zic %z. Zone Atlantic/Azores -1:42:40 - LMT 1884 # Ponta Delgada -1:54:32 - HMT 1912 Jan 1 2:00u # Horta MT @@ -2271,7 +2306,8 @@ Zone Atlantic/Azores -1:42:40 - LMT 1884 # Ponta Delgada -1:00 Port -01/+00 1983 Sep 25 1:00s -1:00 W-Eur -01/+00 1992 Sep 27 1:00s 0:00 EU WE%sT 1993 Mar 28 1:00u - -1:00 EU -01/+00 + -1:00 EU -01/+00 2019 Mar 31 1:00u + 0:00 - +00 # This Zone can be simplified once we assume zic %z. Zone Atlantic/Madeira -1:07:36 - LMT 1884 # Funchal -1:07:36 - FMT 1912 Jan 1 1:00u # Funchal MT @@ -2285,7 +2321,8 @@ Zone Atlantic/Madeira -1:07:36 - LMT 1884 # Funchal -1:00 Port +01 1945 Aug 25 22:00s -1:00 Port -01/+00 1966 Apr 3 2:00 0:00 Port WE%sT 1983 Sep 25 1:00s - 0:00 EU WE%sT + 0:00 EU WE%sT 2019 Mar 31 1:00u + 1:00 - +01 # Romania # @@ -2313,7 +2350,8 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct 2:00 C-Eur EE%sT 1991 2:00 Romania EE%sT 1994 2:00 E-Eur EE%sT 1997 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Russia @@ -2491,7 +2529,8 @@ Zone Europe/Kaliningrad 1:22:00 - LMT 1893 Apr 3:00 Russia MSK/MSD 1989 Mar 26 2:00s 2:00 Russia EE%sT 2011 Mar 27 2:00s 3:00 - +03 2014 Oct 26 2:00s - 2:00 - EET + 2:00 - EET 2019 Mar 31 1:00u + 2:00 - +02 # From Paul Eggert (2016-02-21), per Tim Parenti (2014-07-03) and @@ -3345,7 +3384,8 @@ Zone Europe/Belgrade 1:22:00 - LMT 1884 # transition to EU rules was 1982-11-27, for all of Yugoslavia at the time. # Shanks & Pottenger don't give as much detail, so go with Koželj. 1:00 - CET 1982 Nov 27 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 Link Europe/Belgrade Europe/Ljubljana # Slovenia Link Europe/Belgrade Europe/Podgorica # Montenegro Link Europe/Belgrade Europe/Sarajevo # Bosnia and Herzegovina @@ -3444,7 +3484,8 @@ Rule SpainAfrica 1978 only - Aug 4 0:00 0 - Zone Europe/Madrid -0:14:44 - LMT 1900 Dec 31 23:45:16 0:00 Spain WE%sT 1940 Mar 16 23:00 1:00 Spain CE%sT 1979 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 Zone Africa/Ceuta -0:21:16 - LMT 1900 Dec 31 23:38:44 0:00 - WET 1918 May 6 23:00 0:00 1:00 WEST 1918 Oct 7 23:00 @@ -3453,12 +3494,14 @@ Zone Africa/Ceuta -0:21:16 - LMT 1900 Dec 31 23:38:44 0:00 - WET 1967 # Help zishrink.awk. 0:00 SpainAfrica WE%sT 1984 Mar 16 1:00 - CET 1986 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 Zone Atlantic/Canary -1:01:36 - LMT 1922 Mar # Las Palmas de Gran C. -1:00 - -01 1946 Sep 30 1:00 0:00 - WET 1980 Apr 6 0:00s 0:00 1:00 WEST 1980 Sep 28 1:00u - 0:00 EU WE%sT + 0:00 EU WE%sT 2019 Mar 31 1:00u + 1:00 - +01 # IATA SSIM (1996-09) says the Canaries switch at 2:00u, not 1:00u. # Ignore this for now, as the Canaries are part of the EU. @@ -3514,7 +3557,8 @@ Zone Europe/Stockholm 1:12:12 - LMT 1879 Jan 1 1:00 - CET 1916 May 14 23:00 1:00 1:00 CEST 1916 Oct 1 1:00 1:00 - CET 1980 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Switzerland # From Howse: @@ -3615,7 +3659,8 @@ Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 - Zone Europe/Zurich 0:34:08 - LMT 1853 Jul 16 # See above comment. 0:29:46 - BMT 1894 Jun # Bern Mean Time 1:00 Swiss CE%sT 1981 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 # Turkey @@ -3858,7 +3903,8 @@ Zone Europe/Kiev 2:02:04 - LMT 1880 3:00 Russia MSK/MSD 1990 Jul 1 2:00 2:00 1:00 EEST 1991 Sep 29 3:00 2:00 E-Eur EE%sT 1995 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Ruthenia used CET 1990/1991. # "Uzhhorod" is the transliteration of the Rusyn/Ukrainian pronunciation, but # "Uzhgorod" is more common in English. @@ -3872,7 +3918,8 @@ Zone Europe/Uzhgorod 1:29:12 - LMT 1890 Oct 1:00 - CET 1991 Mar 31 3:00 2:00 - EET 1992 2:00 E-Eur EE%sT 1995 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Zaporozh'ye and eastern Lugansk oblasts observed DST 1990/1991. # "Zaporizhia" is the transliteration of the Ukrainian name, but # "Zaporozh'ye" is more common in English. Use the common English @@ -3885,7 +3932,8 @@ Zone Europe/Zaporozhye 2:20:40 - LMT 1880 1:00 C-Eur CE%sT 1943 Oct 25 3:00 Russia MSK/MSD 1991 Mar 31 2:00 2:00 E-Eur EE%sT 1995 - 2:00 EU EE%sT + 2:00 EU EE%sT 2019 Mar 31 1:00u + 3:00 - +03 # Vatican City # See Europe/Rome. diff --git a/zic.8 b/zic.8 index 4ef7675..17336dc 100644 --- a/zic.8 +++ b/zic.8 @@ -554,7 +554,8 @@ Rule EU 1996 max \*- Oct lastSun 1:00u 0 \*- Zone Europe/Zurich 0:34:08 \*- LMT 1853 Jul 16 0:29:46 \*- BMT 1894 Jun 1:00 Swiss CE%sT 1981 - 1:00 EU CE%sT + 1:00 EU CE%sT 2019 Mar 31 1:00u + 2:00 - +02 .sp Link Europe/Zurich Europe/Vaduz .sp @@ -568,8 +569,9 @@ was changed to 7\(de\|26\(fm\|22.50\(sd; although this works out to is rounded here. After 1894-06-01 at 00:00 the UT offset became one hour and Swiss daylight saving rules (defined with lines beginning with .q "Rule Swiss") -apply. From 1981 to the present, EU daylight saving rules have -applied, and the UTC offset has remained at one hour. +apply. From 1981 to 2019-03-31 01:00 UTC, EU daylight saving rules were +applied, and the UTC offset remained at one hour; +after that, the UTC offset has been (and is planned to be) two hours. .PP In 1941 and 1942, daylight saving time applied from the first Monday in May at 01:00 to the first Monday in October at 02:00. @@ -583,10 +585,15 @@ For purposes of display, .q "LMT" and .q "BMT" -were initially used, respectively. Since +were initially used, respectively. When Swiss rules and later EU rules were applied, the time zone abbreviation -has been CET for standard time and CEST for daylight saving -time. +was +.q "CET" +for standard time and +.q "CEST" +for daylight saving time. +Now that EU DST rules no longer apply, the time zone abbreviation is simply +.q "+02". .SH FILES .TP .I /etc/localtime diff --git a/ziguard.awk b/ziguard.awk index 42e2910..f53a749 100644 --- a/ziguard.awk +++ b/ziguard.awk @@ -43,7 +43,7 @@ DATAFORM != "main" { Rule_Eire = /^#?Rule[\t ]+Eire[\t ]/ Zone_Dublin_post_1968 \ = (zone == "Europe/Dublin" && /^#?[\t ]+[01]:00[\t ]/ \ - && (!$(in_comment + 4) || 1968 < $(in_comment + 4))) + && 1968 < $(in_comment + 4)) if (Rule_Eire || Zone_Dublin_post_1968) { if ((Rule_Eire \ || (Zone_Dublin_post_1968 && $(in_comment + 3) == "IST/GMT")) \ -- 2.17.1

7 15

DST in Samoa causes some teachers to have "thick brains", says P.M.
by Paul Eggert Sept. 18, 2018

Sept. 18, 2018

When DST hits Samoa on September 31, some schools will continue with their nominal schedules, effectively observing DST. However, Prime Minister Tuilaepa Sa’ilele Malielegaoi wants all schools to adjust their nominal schedules by an hour during DST, so that schools effectively continue to run on standard time. The Prime Minister criticized schools not on board with his plan, saying "Some teachers just have thick brains, they are not thinking properly." He also said, "The problem is that no matter the explanation I give to change the starting time for classes, some people just don't want to understand." My source is an article currently on the front page of the Samoa Observer, which is registering the largest number of hits of any article there: Feagaimaali’i-Luamanu J. P.M. slams teachers with "thick brains," wants schools to start at 9am. Samoa Observer. 2018-09-17. http://www.sobserver.ws/en/17_09_2018/local/36843/PM-slams-teachers-with-%E…

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Update -Egypt DST
by mohamed abdallah Sept. 17, 2018

Sept. 17, 2018

Please be aware that Egypt has ceased using the daylight saving time since 2016 and although this fact our android smartphones keeps changing the time (GMT+2) to the daylight saving time (GMT+3). If possible please address this issue and reply. Sent from my HTC

2 1

Re: [tz] European Commission proposes ending DST in March 2019
by Even Scharning Sept. 14, 2018

Sept. 14, 2018

Here is a press release from the European Commission: http://europa.eu/rapid/press-release_IP-18-5709_en.htm And the State of the Union 2018 subpage on Seasonal Clock Changes: https://ec.europa.eu/commission/priorities/state-union-speeches/state-union… Our summary: https://time.is/time_zone_news/end_of_seasonal_clock_changes_in_the_eu Even Scharning Time.is - exact time for any time zone https://time.is/

3 2

Ethiopian time in past mainstream media
by Arthur David Olson Sept. 14, 2018

Sept. 14, 2018

>From January, 2015: "If you have a meeting in Ethiopia, you'd better double check the time." https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-bet… Noted today by Tony Finch on @Twitter: https://twitter.com/fanf/status/1040568915871649792 @dashdashado

2 1

European Commission proposes ending DST in March 2019
by Paul Eggert Sept. 13, 2018

Sept. 13, 2018

In a major speech today covering several topics, European Commission President Jean-Claude Juncker said the commission is proposing ending daylight saving time in the European Union next year. Under the proposal, member states will move their clocks forward in March 2019 as usual, and then chaos will ensue. Well, not exactly chaos, but each member state will be on its own as to whether to move clocks back in October 2019. It should make for interesting times in Ireland and elsewhere. Healy C. Irish people could never have to change clocks from 2019 as EU propose end to laws. Irish Sun. 2018-09-12 10:50 +01. https://www.thesun.ie/news/3108149/irish-clocks-daylight-savings-abolished-…

2 1

Traditional Chinese Time
by Phake Nick Sept. 13, 2018

Sept. 13, 2018

After reading the discussion about time around Ethiopian area, I am reminded that there is actually another clock that is in use for Chinese-speaking area [and maybe also some other neighboring region]. The system, nowadays mostly used in traditional customary/religious activity only, would divide a day into 12 "double hours" (it seems to be a common English translation for the original Chinese term), and then assign each double hour a name from "Earthly Branch". The tricky thing here is, the first hour "zi" actually start at 11 o'clock (pm) standard time. And so everyday start and end at 23:00 according to this system [However, note that some have suggested changing the system, so that despite the 'zi' hour still represent the time period between 11pm and 1am, in some's mind it would be broken into a 'early zi' hour that belong to the previous day while the second half of the hour would be treated as a 'late zi' hour that belongs to the second day]. Also, according to old calendar books, DST are not observed for the traditional timing system, so the "zi" hour would start at DST 24:00 if there's a DST. And then, nowadays there are people who directly use time that are keep officially according to timezone rules to convert time into this traditional system, however there are also people who use the local solar time instead.

1 0

Inquiry to NICT about Japanese Summer time in 1948-1952.
by Phake Nick Sept. 8, 2018

Sept. 8, 2018

To receivers of this email: Recently, I have read an article, which mentioned the history of Japanese Summer Time Implementation in the past at www.bengo4.com/internet/n_8461/ . In the article, it was mentioned that the summer time (DST) end at 25 hours at the last day of the implementation period. Does that mean the clock would go up to the 25th hours back then and reach 24:59 before it continues toward 00:00 on the next day in standard time? If not then how did the clock switched from Summer Time back to Standard Time back then? Please use the "reply to all" function when replying to the message so that other receivers of the message can also hear answer on the matter. Sincerely, P.N.

1 0

1948-1951 Asia/Tokyo DST information
by Phake Nick Sept. 8, 2018

Sept. 8, 2018

It seems like the current info about past DST for Asia/Tokyo in tz database is incorrect. The law cited in the latest commit do say the DST en at 00:00 on the day after the second Saturday in September, however the second line of the law write that "the Second Saturday in September would have 25 hours in a day". I was made aware of it by reading an interview on NICT (The National Institute of Information and Communications Technology) of Japan and the history of DST in Japan given in the interview by NICT representative do said DST used to end at 25:00 there. See https://www.bengo4.com/internet/n_8461/

5 9

Possible closure of WWV et al.
by Arthur David Olson Sept. 3, 2018

Sept. 3, 2018

"If this budget passes as written, WWV, WWVH, and WWVB will all be closed." https://swling.com/blog/2018/08/information-from-the-nist-regarding-possibl… @dashdashado

5 4