- tz - lists.iana.org

Proposed minor cleanups
by Olson, Arthur David (NIH/NCI) Feb. 3, 2005

Feb. 3, 2005

Below are proposed minor cleanups for the time zone code. 1. There's a change to the declarations of the "scheck" function to avoid a lint gripe. 2. Preprocessor directives of the form #if WHATEVER - 0 have been changed to the form #if WHATEVER under the assumption that we're working with ANSI standard compilers. 3. The underscored variants of definitions of constants such as SECSPERDAY have been eliminated, in line with a long-standing comment in the code. 4. And the bulk of the changes are cleanups to white space and line lengths. --ado diff -r -c old/Makefile new/Makefile *** old/Makefile Mon Jan 31 09:21:22 2005 --- new/Makefile Mon Jan 31 14:06:12 2005 *************** *** 1,4 **** ! # @(#)Makefile 7.106 # 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). --- 1,4 ---- ! # @(#)Makefile 7.107 # 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). *************** *** 398,404 **** tar cf - $(DOCS) $(SOURCES) $(MISC) *.[1-8].txt | gzip -9 > tzcode.tar.gz tar cf - $(DATA) | gzip -9 > tzdata.tar.gz ! typecheck: make clean for i in "long long" unsigned double; \ do \ --- 398,404 ---- tar cf - $(DOCS) $(SOURCES) $(MISC) *.[1-8].txt | gzip -9 > tzcode.tar.gz tar cf - $(DATA) | gzip -9 > tzdata.tar.gz ! typecheck: make clean for i in "long long" unsigned double; \ do \ diff -r -c old/asctime.c new/asctime.c *** old/asctime.c Mon Jan 31 09:20:46 2005 --- new/asctime.c Mon Jan 31 14:06:49 2005 *************** *** 11,17 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)asctime.c 7.30"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 11,17 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)asctime.c 7.31"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 98,104 **** /* ** We avoid using snprintf since it's not available on all systems. */ ! (void) sprintf(result, ((strlen(year) <= 4) ? ASCTIME_FMT : ASCTIME_FMT_B), wn, mn, timeptr->tm_mday, timeptr->tm_hour, --- 98,104 ---- /* ** We avoid using snprintf since it's not available on all systems. */ ! (void) sprintf(result, ((strlen(year) <= 4) ? ASCTIME_FMT : ASCTIME_FMT_B), wn, mn, timeptr->tm_mday, timeptr->tm_hour, diff -r -c old/asia new/asia *** old/asia Mon Jan 17 18:36:16 2005 --- new/asia Mon Jan 31 14:06:50 2005 *************** *** 1,4 **** ! # @(#)asia 7.78 # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to --- 1,4 ---- ! # @(#)asia 7.79 # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to *************** *** 337,343 **** # President Eduard Shevardnadze decreed Wednesday. # # From the BBC via Joseph S. Myers (2004-06-27): ! # # Georgia moved closer to Western Europe on Sunday... The former Soviet # republic has changed its time zone back to that of Moscow. As a result it # is now just four hours ahead of Greenwich Mean Time, rather than five hours --- 337,343 ---- # President Eduard Shevardnadze decreed Wednesday. # # From the BBC via Joseph S. Myers (2004-06-27): ! # # Georgia moved closer to Western Europe on Sunday... The former Soviet # republic has changed its time zone back to that of Moscow. As a result it # is now just four hours ahead of Greenwich Mean Time, rather than five hours diff -r -c old/date.c new/date.c *** old/date.c Mon Jan 31 09:20:47 2005 --- new/date.c Mon Jan 31 14:06:49 2005 *************** *** 1,6 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)date.c 7.40"; /* ** Modified from the UCB version with the SCCS ID appearing below. */ --- 1,6 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)date.c 7.41"; /* ** Modified from the UCB version with the SCCS ID appearing below. */ *************** *** 664,670 **** cp = value; switch (dotp - cp) { default: ! wildinput(_("time"), value, _("main part is wrong length")); case 12: if (!dousg) { cent = ATOI2(cp); --- 664,671 ---- cp = value; switch (dotp - cp) { default: ! wildinput(_("time"), value, ! _("main part is wrong length")); case 12: if (!dousg) { cent = ATOI2(cp); diff -r -c old/difftime.c new/difftime.c *** old/difftime.c Mon Jan 31 09:20:47 2005 --- new/difftime.c Mon Jan 31 14:06:49 2005 *************** *** 5,11 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)difftime.c 7.17"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 5,11 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)difftime.c 7.18"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 57,63 **** /* ** Stay calm...decent optimizers will eliminate the complexity below. */ ! if (time1 >= 0 /* && time0 < 0 */) return (unsigned long) time1 + (unsigned long) (-(time0 + 1)) + 1; return -(double) ((unsigned long) time0 + --- 57,63 ---- /* ** Stay calm...decent optimizers will eliminate the complexity below. */ ! if (time1 >= 0 /* && time0 < 0 */) return (unsigned long) time1 + (unsigned long) (-(time0 + 1)) + 1; return -(double) ((unsigned long) time0 + diff -r -c old/leapseconds new/leapseconds *** old/leapseconds Mon Jan 17 18:36:18 2005 --- new/leapseconds Mon Jan 31 14:06:50 2005 *************** *** 1,4 **** ! # @(#)leapseconds 7.18 # Allowance for leapseconds added to each timezone file. --- 1,4 ---- ! # @(#)leapseconds 7.19 # Allowance for leapseconds added to each timezone file. *************** *** 44,52 **** Leap 1997 Jun 30 23:59:60 + S Leap 1998 Dec 31 23:59:60 + S ! # INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) # SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE ! # # SERVICE DE LA ROTATION TERRESTRE # OBSERVATOIRE DE PARIS # 61, Av. de l'Observatoire 75014 PARIS (France) --- 44,52 ---- Leap 1997 Jun 30 23:59:60 + S Leap 1998 Dec 31 23:59:60 + S ! # INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) # SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE ! # # SERVICE DE LA ROTATION TERRESTRE # OBSERVATOIRE DE PARIS # 61, Av. de l'Observatoire 75014 PARIS (France) *************** *** 53,80 **** # Tel. : 33 (0) 1 40 51 22 26 # FAX : 33 (0) 1 40 51 22 91 # Internet : services.iers(a)obspm.fr ! # ! # Paris, 21 July 2004 ! # ! # ! # Bulletin C 28 ! # ! # To authorities responsible ! # for the measurement and ! # distribution of time ! # ! # INFORMATION ON UTC - TAI ! # # NO positive leap second will be introduced at the end of December 2004. # The difference between UTC and the International Atomic Time TAI is: ! # ! # from 1999 January 1, 0h UTC, until further notice : UTC-TAI = -32 s ! # # Leap seconds can be introduced in UTC at the end of the months of December # or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every # six months, either to announce a time step in UTC, or to confirm that there # will be no time step at the next possible date. ! # ! # Daniel GAMBIS ! # Director ! # Earth Orientation Center of IERS --- 53,80 ---- # Tel. : 33 (0) 1 40 51 22 26 # FAX : 33 (0) 1 40 51 22 91 # Internet : services.iers(a)obspm.fr ! # ! # Paris, 21 July 2004 ! # ! # ! # Bulletin C 28 ! # ! # To authorities responsible ! # for the measurement and ! # distribution of time ! # ! # INFORMATION ON UTC - TAI ! # # NO positive leap second will be introduced at the end of December 2004. # The difference between UTC and the International Atomic Time TAI is: ! # ! # from 1999 January 1, 0h UTC, until further notice : UTC-TAI = -32 s ! # # Leap seconds can be introduced in UTC at the end of the months of December # or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every # six months, either to announce a time step in UTC, or to confirm that there # will be no time step at the next possible date. ! # ! # Daniel GAMBIS ! # Director ! # Earth Orientation Center of IERS diff -r -c old/localtime.c new/localtime.c *** old/localtime.c Mon Jan 31 09:20:46 2005 --- new/localtime.c Mon Jan 31 14:09:31 2005 *************** *** 5,11 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 7.90"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 5,11 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 7.91"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 47,55 **** ** 5. They might reference tm.TM_ZONE after calling offtime. ** What's best to do in the above cases is open to debate; ** for now, we just set things up so that in any of the five cases ! ** WILDABBR is used. Another possibility: initialize tzname[0] to the ** string "tzname[0] used before set", and similarly for the other cases. ! ** And another: initialize tzname[0] to "ERA", with an explanation in the ** manual page of what this "time zone abbreviation" means (doing this so ** that tzname[0] has the "normal" length of three characters). */ --- 47,55 ---- ** 5. They might reference tm.TM_ZONE after calling offtime. ** What's best to do in the above cases is open to debate; ** for now, we just set things up so that in any of the five cases ! ** WILDABBR is used. Another possibility: initialize tzname[0] to the ** string "tzname[0] used before set", and similarly for the other cases. ! ** And another: initialize tzname[0] to "ERA", with an explanation in the ** manual page of what this "time zone abbreviation" means (doing this so ** that tzname[0] has the "normal" length of three characters). */ *************** *** 453,459 **** /* ** Given a pointer into a time zone string, scan until a character that is not ! ** a valid character in a zone name is found. Return a pointer to that ** character. */ --- 453,459 ---- /* ** Given a pointer into a time zone string, scan until a character that is not ! ** a valid character in a zone name is found. Return a pointer to that ** character. */ *************** *** 534,540 **** *secsp += num * SECSPERMIN; if (*strp == ':') { ++strp; ! /* `SECSPERMIN' allows for leap seconds. */ strp = getnum(strp, &num, 0, SECSPERMIN); if (strp == NULL) return NULL; --- 534,540 ---- *secsp += num * SECSPERMIN; if (*strp == ':') { ++strp; ! /* `SECSPERMIN' allows for leap seconds. */ strp = getnum(strp, &num, 0, SECSPERMIN); if (strp == NULL) return NULL; *************** *** 573,579 **** /* ** Given a pointer into a time zone string, extract a rule in the form ! ** date[/time]. See POSIX section 8 for the format of "date" and "time". ** If a valid rule is not found, return NULL. ** Otherwise, return a pointer to the first character not part of the rule. */ --- 573,579 ---- /* ** Given a pointer into a time zone string, extract a rule in the form ! ** date[/time]. See POSIX section 8 for the format of "date" and "time". ** If a valid rule is not found, return NULL. ** Otherwise, return a pointer to the first character not part of the rule. */ *************** *** 692,698 **** dow += DAYSPERWEEK; /* ! ** "dow" is the day-of-week of the first day of the month. Get ** the day-of-month (zero-origin) of the first "dow" day of the ** month. */ --- 692,698 ---- dow += DAYSPERWEEK; /* ! ** "dow" is the day-of-week of the first day of the month. Get ** the day-of-month (zero-origin) of the first "dow" day of the ** month. */ *************** *** 715,721 **** /* ** "value" is the Epoch-relative time of 00:00:00 UTC on the day in ! ** question. To get the Epoch-relative time of the specified local ** time on that day, add the transition time and the current offset ** from UTC. */ --- 715,721 ---- /* ** "value" is the Epoch-relative time of 00:00:00 UTC on the day in ! ** question. To get the Epoch-relative time of the specified local ** time on that day, add the transition time and the current offset ** from UTC. */ *************** *** 1022,1028 **** /* ** The easy way to behave "as if no library function calls" localtime ** is to not call it--so we drop its guts into "localsub", which can be ! ** freely called. (And no, the PANS doesn't require the above behavior-- ** but it *is* desirable.) ** ** The unused offset argument is for the benefit of mktime variants. --- 1022,1028 ---- /* ** The easy way to behave "as if no library function calls" localtime ** is to not call it--so we drop its guts into "localsub", which can be ! ** freely called. (And no, the PANS doesn't require the above behavior-- ** but it *is* desirable.) ** ** The unused offset argument is for the benefit of mktime variants. *************** *** 1178,1184 **** leaps_thru_end_of(y) register const int y; { ! return (y >= 0) ? (y / 4 - y / 100 + y / 400) : -(leaps_thru_end_of(-(y + 1)) + 1); } --- 1178,1184 ---- leaps_thru_end_of(y) register const int y; { ! return (y >= 0) ? (y / 4 - y / 100 + y / 400) : -(leaps_thru_end_of(-(y + 1)) + 1); } *************** *** 1302,1308 **** tmp->tm_min = (int) (rem / SECSPERMIN); /* ** A positive leap second requires a special ! ** representation. This uses "... ??:59:60" et seq. */ tmp->tm_sec = (int) (rem % SECSPERMIN) + hit; ip = mon_lengths[isleap(y)]; --- 1302,1308 ---- tmp->tm_min = (int) (rem / SECSPERMIN); /* ** A positive leap second requires a special ! ** representation. This uses "... ??:59:60" et seq. */ tmp->tm_sec = (int) (rem % SECSPERMIN) + hit; ip = mon_lengths[isleap(y)]; *************** *** 1323,1329 **** /* ** Section 4.12.3.2 of X3.159-1989 requires that ** The ctime function converts the calendar time pointed to by timer ! ** to local time in the form of a string. It is equivalent to ** asctime(localtime(timer)) */ return asctime(localtime(timep)); --- 1323,1329 ---- /* ** Section 4.12.3.2 of X3.159-1989 requires that ** The ctime function converts the calendar time pointed to by timer ! ** to local time in the form of a string. It is equivalent to ** asctime(localtime(timer)) */ return asctime(localtime(timep)); *************** *** 1344,1350 **** ** The "best" way to do mktime I think is based on an idea of Bob ** Kridle's (so its said...) from a long time ago. ** [kridle(a)xinet.com as of 1996-01-16.] ! ** It does a binary search of the time_t space. Since time_t's are ** just 32 bits, its a max of 32 iterations (even at 64 bits it ** would still be very reasonable). */ --- 1344,1350 ---- ** The "best" way to do mktime I think is based on an idea of Bob ** Kridle's (so its said...) from a long time ago. ** [kridle(a)xinet.com as of 1996-01-16.] ! ** It does a binary search of the time_t space. Since time_t's are ** just 32 bits, its a max of 32 iterations (even at 64 bits it ** would still be very reasonable). */ *************** *** 1494,1500 **** return WRONG; yourtm.tm_year = y; if (yourtm.tm_year != y) ! return WRONG; if (yourtm.tm_sec >= 0 && yourtm.tm_sec < SECSPERMIN) saved_seconds = 0; else if (y + TM_YEAR_BASE < EPOCH_YEAR) { --- 1494,1500 ---- return WRONG; yourtm.tm_year = y; if (yourtm.tm_year != y) ! return WRONG; if (yourtm.tm_sec >= 0 && yourtm.tm_sec < SECSPERMIN) saved_seconds = 0; else if (y + TM_YEAR_BASE < EPOCH_YEAR) { *************** *** 1813,1819 **** tzset(); /* ** For a positive leap second hit, the result ! ** is not unique. For a negative leap second ** hit, the corresponding time doesn't exist, ** so we return an adjacent second. */ --- 1813,1819 ---- tzset(); /* ** For a positive leap second hit, the result ! ** is not unique. For a negative leap second ** hit, the corresponding time doesn't exist, ** so we return an adjacent second. */ diff -r -c old/newstrftime.3 new/newstrftime.3 *** old/newstrftime.3 Mon Jan 31 09:20:46 2005 --- new/newstrftime.3 Mon Jan 31 14:06:49 2005 *************** *** 151,163 **** is replaced by a newline. .TP %p ! is replaced by the locale's equivalent of either AM or PM. .TP %R is replaced by the time in the format %H:%M. .TP %r ! is replaced by the locale's representation of 12-hour clock time using AM/PM notation. .TP %S --- 151,163 ---- is replaced by a newline. .TP %p ! is replaced by the locale's equivalent of either AM or PM. .TP %R is replaced by the time in the format %H:%M. .TP %r ! is replaced by the locale's representation of 12-hour clock time using AM/PM notation. .TP %S *************** *** 227,230 **** newtzset(3), time(2), tzfile(5) ! .\" @(#)newstrftime.3 7.14 --- 227,230 ---- newtzset(3), time(2), tzfile(5) ! .\" @(#)newstrftime.3 7.15 diff -r -c old/northamerica new/northamerica *** old/northamerica Mon Jan 17 18:36:17 2005 --- new/northamerica Mon Jan 31 14:06:50 2005 *************** *** 1,4 **** ! # @(#)northamerica 7.71 # also includes Central America and the Caribbean # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)northamerica 7.72 # also includes Central America and the Caribbean # This data is by no means authoritative; if you think you know better, *************** *** 445,451 **** # Lemhi, Lincoln, Madison, Minidoka, Oneida, Owyhee, Payette, Power, # Teton, Twin Falls, Valley, Washington counties) and eastern Oregon # switched four weeks late in 1974. ! # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:00 -8:00 US P%sT 1923 May 13 2:00 --- 445,451 ---- # Lemhi, Lincoln, Madison, Minidoka, Oneida, Owyhee, Payette, Power, # Teton, Twin Falls, Valley, Washington counties) and eastern Oregon # switched four weeks late in 1974. ! # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:00 -8:00 US P%sT 1923 May 13 2:00 diff -r -c old/private.h new/private.h *** old/private.h Mon Jan 31 09:19:08 2005 --- new/private.h Mon Jan 31 14:06:49 2005 *************** *** 91,103 **** #include "time.h" #include "stdlib.h" ! #if HAVE_GETTEXT - 0 #include "libintl.h" ! #endif /* HAVE_GETTEXT - 0 */ ! #if HAVE_SYS_WAIT_H - 0 #include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ ! #endif /* HAVE_SYS_WAIT_H - 0 */ #ifndef WIFEXITED #define WIFEXITED(status) (((status) & 0xff) == 0) --- 91,103 ---- #include "time.h" #include "stdlib.h" ! #if HAVE_GETTEXT #include "libintl.h" ! #endif /* HAVE_GETTEXT */ ! #if HAVE_SYS_WAIT_H #include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ ! #endif /* HAVE_SYS_WAIT_H */ #ifndef WIFEXITED #define WIFEXITED(status) (((status) & 0xff) == 0) *************** *** 106,116 **** #define WEXITSTATUS(status) (((status) >> 8) & 0xff) #endif /* !defined WEXITSTATUS */ ! #if HAVE_UNISTD_H - 0 #include "unistd.h" /* for F_OK and R_OK */ ! #endif /* HAVE_UNISTD_H - 0 */ ! #if !(HAVE_UNISTD_H - 0) #ifndef F_OK #define F_OK 0 #endif /* !defined F_OK */ --- 106,116 ---- #define WEXITSTATUS(status) (((status) >> 8) & 0xff) #endif /* !defined WEXITSTATUS */ ! #if HAVE_UNISTD_H #include "unistd.h" /* for F_OK and R_OK */ ! #endif /* HAVE_UNISTD_H */ ! #if !HAVE_UNISTD_H #ifndef F_OK #define F_OK 0 #endif /* !defined F_OK */ *************** *** 117,125 **** #ifndef R_OK #define R_OK 4 #endif /* !defined R_OK */ ! #endif /* !(HAVE_UNISTD_H - 0) */ ! /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ #define is_digit(c) ((unsigned)(c) - '0' <= 9) /* --- 117,125 ---- #ifndef R_OK #define R_OK 4 #endif /* !defined R_OK */ ! #endif /* !HAVE_UNISTD_H */ ! /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ #define is_digit(c) ((unsigned)(c) - '0' <= 9) /* *************** *** 216,222 **** void * irealloc P((void * pointer, int size)); void icfree P((char * pointer)); void ifree P((char * pointer)); ! char * scheck P((const char *string, const char *format)); /* ** Finally, some convenience items. --- 216,222 ---- void * irealloc P((void * pointer, int size)); void icfree P((char * pointer)); void ifree P((char * pointer)); ! char * scheck P((const char *string, char *format)); /* ** Finally, some convenience items. *************** *** 255,261 **** ** add one more for a minus sign if the type is signed. */ #define INT_STRLEN_MAXIMUM(type) \ ! ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type)) #endif /* !defined INT_STRLEN_MAXIMUM */ /* --- 255,262 ---- ** add one more for a minus sign if the type is signed. */ #define INT_STRLEN_MAXIMUM(type) \ ! ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ ! 1 + TYPE_SIGNED(type)) #endif /* !defined INT_STRLEN_MAXIMUM */ /* *************** *** 289,299 **** */ #ifndef _ ! #if HAVE_GETTEXT - 0 #define _(msgid) gettext(msgid) ! #else /* !(HAVE_GETTEXT - 0) */ #define _(msgid) msgid ! #endif /* !(HAVE_GETTEXT - 0) */ #endif /* !defined _ */ #ifndef TZ_DOMAIN --- 290,300 ---- */ #ifndef _ ! #if HAVE_GETTEXT #define _(msgid) gettext(msgid) ! #else /* !HAVE_GETTEXT */ #define _(msgid) msgid ! #endif /* !HAVE_GETTEXT */ #endif /* !defined _ */ #ifndef TZ_DOMAIN diff -r -c old/scheck.c new/scheck.c *** old/scheck.c Mon Jan 31 09:20:47 2005 --- new/scheck.c Mon Jan 31 14:06:49 2005 *************** *** 1,6 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)scheck.c 8.15"; #endif /* !defined lint */ #endif /* !defined NOID */ --- 1,6 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)scheck.c 8.16"; #endif /* !defined lint */ #endif /* !defined NOID */ *************** *** 11,17 **** char * scheck(string, format) const char * const string; ! const char * const format; { register char * fbuf; register const char * fp; --- 11,17 ---- char * scheck(string, format) const char * const string; ! char * const format; { register char * fbuf; register const char * fp; diff -r -c old/southamerica new/southamerica *** old/southamerica Mon Jan 17 18:36:17 2005 --- new/southamerica Mon Jan 31 14:06:50 2005 *************** *** 1,4 **** ! # @(#)southamerica 7.57 # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to --- 1,4 ---- ! # @(#)southamerica 7.58 # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to *************** *** 964,970 **** # # <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net"> # From Evelyn C. Leeper via Mark Brader (2003-10-26):</a> ! # When we were in Peru in 1985-1986, they apparently switched over # sometime between December 29 and January 3 while we were on the Amazon. # # From Paul Eggert (2003-11-02): --- 964,970 ---- # # <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net"> # From Evelyn C. Leeper via Mark Brader (2003-10-26):</a> ! # When we were in Peru in 1985-1986, they apparently switched over # sometime between December 29 and January 3 while we were on the Amazon. # # From Paul Eggert (2003-11-02): diff -r -c old/strftime.c new/strftime.c *** old/strftime.c Mon Jan 31 09:20:47 2005 --- new/strftime.c Mon Jan 31 14:06:50 2005 *************** *** 1,6 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)strftime.c 7.74"; /* ** Based on the UCB version with the ID appearing below. ** This is ANSIish only when "multibyte character == plain character". --- 1,6 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)strftime.c 7.75"; /* ** Based on the UCB version with the ID appearing below. ** This is ANSIish only when "multibyte character == plain character". *************** *** 19,25 **** ** duplicated in all such forms and that any documentation, ** advertising materials, and other materials related to such ** distribution and use acknowledge that the software was developed ! ** by the University of California, Berkeley. The name of the ** University may not be used to endorse or promote products derived ** from this software without specific prior written permission. ** THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR --- 19,25 ---- ** duplicated in all such forms and that any documentation, ** advertising materials, and other materials related to such ** distribution and use acknowledge that the software was developed ! ** by the University of California, Berkeley. The name of the ** University may not be used to endorse or promote products derived ** from this software without specific prior written permission. ** THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR *************** *** 91,97 **** ** C99 requires this format. ** Previously this code used "%D %X", but we now conform to C99. ** Note that ! ** "%a %b %d %H:%M:%S %Y" ** is used by Solaris 2.3. */ "%a %b %e %T %Y", --- 91,97 ---- ** C99 requires this format. ** Previously this code used "%D %X", but we now conform to C99. ** Note that ! ** "%a %b %d %H:%M:%S %Y" ** is used by Solaris 2.3. */ "%a %b %e %T %Y", *************** *** 108,114 **** static char * _add P((const char *, char *, const char *)); static char * _conv P((int, const char *, char *, const char *)); ! static char * _fmt P((const char *, const struct tm *, char *, const char *, int *)); static char * _yconv P((int, int, int, int, char *, const char *)); extern char * tzname[]; --- 108,115 ---- static char * _add P((const char *, char *, const char *)); static char * _conv P((int, const char *, char *, const char *)); ! static char * _fmt P((const char *, const struct tm *, char *, const char *, ! int *)); static char * _yconv P((int, int, int, int, char *, const char *)); extern char * tzname[]; *************** *** 264,270 **** ** t->tm_hour % 12 : 12, 2, ' '); ** ...and has been changed to the below to ** match SunOS 4.1.1 and Arnold Robbins' ! ** strftime version 3.0. That is, "%k" and ** "%l" have been swapped. ** (ado, 1993-05-24) */ --- 265,271 ---- ** t->tm_hour % 12 : 12, 2, ' '); ** ...and has been changed to the below to ** match SunOS 4.1.1 and Arnold Robbins' ! ** strftime version 3.0. That is, "%k" and ** "%l" have been swapped. ** (ado, 1993-05-24) */ *************** *** 284,290 **** ** _conv(t->tm_hour, 2, ' '); ** ...and has been changed to the below to ** match SunOS 4.1.1 and Arnold Robbin's ! ** strftime version 3.0. That is, "%k" and ** "%l" have been swapped. ** (ado, 1993-05-24) */ --- 285,291 ---- ** _conv(t->tm_hour, 2, ' '); ** ...and has been changed to the below to ** match SunOS 4.1.1 and Arnold Robbin's ! ** strftime version 3.0. That is, "%k" and ** "%l" have been swapped. ** (ado, 1993-05-24) */ *************** *** 359,365 **** case 'G': /* ISO 8601 year (four digits) */ case 'g': /* ISO 8601 year (two digits) */ /* ! ** From Arnold Robbins' strftime version 3.0: "the week number of the ** year (the first Monday as the first day of week 1) as a decimal number ** (01-53)." ** (ado, 1993-05-24) --- 360,366 ---- case 'G': /* ISO 8601 year (four digits) */ case 'g': /* ISO 8601 year (two digits) */ /* ! ** From Arnold Robbins' strftime version 3.0: "the week number of the ** year (the first Monday as the first day of week 1) as a decimal number ** (01-53)." ** (ado, 1993-05-24) *************** *** 372,378 **** ** might also contain days from the previous year and the week before week ** 01 of a year is the last week (52 or 53) of the previous year even if ** it contains days from the new year. A week starts with Monday (day 1) ! ** and ends with Sunday (day 7). For example, the first week of the year ** 1997 lasts from 1996-12-30 to 1997-01-05..." ** (ado, 1996-01-02) */ --- 373,379 ---- ** might also contain days from the previous year and the week before week ** 01 of a year is the last week (52 or 53) of the previous year even if ** it contains days from the new year. A week starts with Monday (day 1) ! ** and ends with Sunday (day 7). For example, the first week of the year ** 1997 lasts from 1996-12-30 to 1997-01-05..." ** (ado, 1996-01-02) */ *************** *** 512,523 **** /* ** C99 says that the UTC offset must ** be computed by looking only at ! ** tm_isdst. This requirement is ** incorrect, since it means the code ** must rely on magic (in this case ** altzone and timezone), and the ** magic might not have the correct ! ** offset. Doing things correctly is ** tricky and requires disobeying C99; ** see GNU C strftime for details. ** For now, punt and conform to the --- 513,524 ---- /* ** C99 says that the UTC offset must ** be computed by looking only at ! ** tm_isdst. This requirement is ** incorrect, since it means the code ** must rely on magic (in this case ** altzone and timezone), and the ** magic might not have the correct ! ** offset. Doing things correctly is ** tricky and requires disobeying C99; ** see GNU C strftime for details. ** For now, punt and conform to the *************** *** 559,565 **** case '%': /* ** X311J/88-090 (4.12.3.5): if conversion char is ! ** undefined, behavior is undefined. Print out the ** character itself as printf(3) also does. */ default: --- 560,566 ---- case '%': /* ** X311J/88-090 (4.12.3.5): if conversion char is ! ** undefined, behavior is undefined. Print out the ** character itself as printf(3) also does. */ default: *************** *** 682,688 **** ** Slurp the locale file into the cache. */ namesize = strlen(name) + 1; ! if (sizeof filename < ((sizeof locale_home) + namesize + (sizeof lc_time))) goto no_locale; oldsun = 0; --- 683,689 ---- ** Slurp the locale file into the cache. */ namesize = strlen(name) + 1; ! if (sizeof filename < ((sizeof locale_home) + namesize + (sizeof lc_time))) goto no_locale; oldsun = 0; *************** *** 705,711 **** goto bad_locale; bufsize = namesize + st.st_size; locale_buf = NULL; ! lbuf = (lbuf == NULL) ? malloc(bufsize) : realloc(lbuf, bufsize); if (lbuf == NULL) goto bad_locale; (void) strcpy(lbuf, name); --- 706,712 ---- goto bad_locale; bufsize = namesize + st.st_size; locale_buf = NULL; ! lbuf = (lbuf == NULL) ? malloc(bufsize) : realloc(lbuf, bufsize); if (lbuf == NULL) goto bad_locale; (void) strcpy(lbuf, name); diff -r -c old/tz-art.htm new/tz-art.htm *** old/tz-art.htm Mon Jan 31 09:20:48 2005 --- new/tz-art.htm Mon Jan 31 14:06:50 2005 *************** *** 1,5 **** <?xml version="1.0" encoding="US-ASCII"?> ! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> --- 1,5 ---- <?xml version="1.0" encoding="US-ASCII"?> ! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> *************** *** 10,16 **** <body> <h1>Time and the Arts</h1> <address> ! @(#)tz-art.htm 7.53 </address> <p> Please send corrections to this web page to the --- 10,16 ---- <body> <h1>Time and the Arts</h1> <address> ! @(#)tz-art.htm 7.54 </address> <p> Please send corrections to this web page to the diff -r -c old/tzfile.h new/tzfile.h *** old/tzfile.h Mon Jan 31 09:19:08 2005 --- new/tzfile.h Mon Jan 31 14:06:49 2005 *************** *** 21,27 **** #ifndef lint #ifndef NOID ! static char tzfilehid[] = "@(#)tzfile.h 7.16"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 21,27 ---- #ifndef lint #ifndef NOID ! static char tzfilehid[] = "@(#)tzfile.h 7.17"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 48,54 **** #define TZ_MAGIC "TZif" struct tzhead { ! char tzh_magic[4]; /* TZ_MAGIC */ char tzh_reserved[16]; /* reserved for future use */ char tzh_ttisgmtcnt[4]; /* coded number of trans. time flags */ char tzh_ttisstdcnt[4]; /* coded number of trans. time flags */ --- 48,54 ---- #define TZ_MAGIC "TZif" struct tzhead { ! char tzh_magic[4]; /* TZ_MAGIC */ char tzh_reserved[16]; /* reserved for future use */ char tzh_ttisgmtcnt[4]; /* coded number of trans. time flags */ char tzh_ttisstdcnt[4]; /* coded number of trans. time flags */ *************** *** 172,197 **** #define isleap_sum(a, b) isleap((a) % 400 + (b) % 400) - #ifndef USG - - /* - ** Use of the underscored variants may cause problems if you move your code to - ** certain System-V-based systems; for maximum portability, use the - ** underscore-free variants. The underscored variants are provided for - ** backward compatibility only; they may disappear from future versions of - ** this file. - */ - - #define SECS_PER_MIN SECSPERMIN - #define MINS_PER_HOUR MINSPERHOUR - #define HOURS_PER_DAY HOURSPERDAY - #define DAYS_PER_WEEK DAYSPERWEEK - #define DAYS_PER_NYEAR DAYSPERNYEAR - #define DAYS_PER_LYEAR DAYSPERLYEAR - #define SECS_PER_HOUR SECSPERHOUR - #define SECS_PER_DAY SECSPERDAY - #define MONS_PER_YEAR MONSPERYEAR - - #endif /* !defined USG */ - #endif /* !defined TZFILE_H */ --- 172,175 ---- diff -r -c old/workman.sh new/workman.sh *** old/workman.sh Mon Jan 31 09:20:49 2005 --- new/workman.sh Mon Jan 31 14:06:50 2005 *************** *** 1,6 **** #! /bin/sh ! # @(#)workman.sh 1.7 # Tell groff not to emit SGR escape sequences (ANSI color escapes). GROFF_NO_SGR=1 --- 1,6 ---- #! /bin/sh ! # @(#)workman.sh 1.8 # Tell groff not to emit SGR escape sequences (ANSI color escapes). GROFF_NO_SGR=1 *************** *** 26,29 **** print "$_\n"; $didprint = 1; } ! ' --- 26,29 ---- print "$_\n"; $didprint = 1; } ! ' diff -r -c old/yearistype.sh new/yearistype.sh *** old/yearistype.sh Mon Jan 17 18:36:18 2005 --- new/yearistype.sh Mon Jan 31 14:06:50 2005 *************** *** 1,6 **** #! /bin/sh ! : '@(#)yearistype.sh 7.7' case $#-$1 in 2-|2-0*|2-*[!0-9]*) --- 1,6 ---- #! /bin/sh ! : '@(#)yearistype.sh 7.8' case $#-$1 in 2-|2-0*|2-*[!0-9]*) *************** *** 9,15 **** esac case $#-$2 in ! 2-even) case $1 in *[24680]) exit 0 ;; *) exit 1 ;; --- 9,15 ---- esac case $#-$2 in ! 2-even) case $1 in *[24680]) exit 0 ;; *) exit 1 ;; *************** *** 19,25 **** *[02468][048]|*[13579][26]) exit 1 ;; *) exit 0 ;; esac ;; ! 2-odd) case $1 in *[13579]) exit 0 ;; *) exit 1 ;; --- 19,25 ---- *[02468][048]|*[13579][26]) exit 1 ;; *) exit 0 ;; esac ;; ! 2-odd) case $1 in *[13579]) exit 0 ;; *) exit 1 ;; *************** *** 29,35 **** *[02468][048]|*[13579][26]) exit 0 ;; *) exit 1 ;; esac ;; ! 2-*) echo "$0: wild type - $2" >&2 ;; esac --- 29,35 ---- *[02468][048]|*[13579][26]) exit 0 ;; *) exit 1 ;; esac ;; ! 2-*) echo "$0: wild type - $2" >&2 ;; esac diff -r -c old/zdump.c new/zdump.c *** old/zdump.c Mon Jan 31 09:20:47 2005 --- new/zdump.c Mon Jan 31 14:20:42 2005 *************** *** 1,4 **** ! static char elsieid[] = "@(#)zdump.c 7.61"; /* ** This code has been made independent of the rest of the time --- 1,4 ---- ! static char elsieid[] = "@(#)zdump.c 7.63"; /* ** This code has been made independent of the rest of the time *************** *** 215,221 **** INITIALIZE(cutlotime); INITIALIZE(cuthitime); #if HAVE_GETTEXT ! (void) setlocale(LC_MESSAGES, ""); #ifdef TZ_DOMAINDIR (void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR); #endif /* defined TEXTDOMAINDIR */ --- 215,221 ---- INITIALIZE(cutlotime); INITIALIZE(cuthitime); #if HAVE_GETTEXT ! (void) setlocale(LC_ALL, ""); #ifdef TZ_DOMAINDIR (void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR); #endif /* defined TEXTDOMAINDIR */ *************** *** 318,324 **** newtmp = localtime(&newt); if (newtmp != NULL) newtm = *newtmp; ! if ((tmp == NULL || newtmp == NULL) ? (tmp != newtmp) : (delta(&newtm, &tm) != (newt - t) || newtm.tm_isdst != tm.tm_isdst || strcmp(abbr(&newtm), buf) != 0)) { --- 318,324 ---- newtmp = localtime(&newt); if (newtmp != NULL) newtm = *newtmp; ! if ((tmp == NULL || newtmp == NULL) ? (tmp != newtmp) : (delta(&newtm, &tm) != (newt - t) || newtm.tm_isdst != tm.tm_isdst || strcmp(abbr(&newtm), buf) != 0)) { diff -r -c old/zic.c new/zic.c *** old/zic.c Mon Jan 31 09:20:47 2005 --- new/zic.c Mon Jan 31 14:20:42 2005 *************** *** 1,4 **** ! static char elsieid[] = "@(#)zic.c 7.120"; /* ** Regardless of the type of time_t, we do our work using this type. --- 1,4 ---- ! static char elsieid[] = "@(#)zic.c 7.122"; /* ** Regardless of the type of time_t, we do our work using this type. *************** *** 21,27 **** /* ** On some ancient hosts, predicates like `isspace(C)' are defined ! ** only if isascii(C) || C == EOF. Modern hosts obey the C Standard, ** which says they are defined only if C == ((unsigned char) C) || C == EOF. ** Neither the C Standard nor Posix require that `isascii' exist. ** For portability, we check both ancient and modern requirements. --- 21,27 ---- /* ** On some ancient hosts, predicates like `isspace(C)' are defined ! ** only if isascii(C) || C == EOF. Modern hosts obey the C Standard, ** which says they are defined only if C == ((unsigned char) C) || C == EOF. ** Neither the C Standard nor Posix require that `isascii' exist. ** For portability, we check both ancient and modern requirements. *************** *** 138,146 **** static void writezone P((const char * name)); static int yearistype P((int year, const char * type)); ! #if !(HAVE_STRERROR - 0) static char * strerror P((int)); ! #endif /* !(HAVE_STRERROR - 0) */ static int charcnt; static int errors; --- 138,146 ---- static void writezone P((const char * name)); static int yearistype P((int year, const char * type)); ! #if !HAVE_STRERROR static char * strerror P((int)); ! #endif /* !HAVE_STRERROR */ static int charcnt; static int errors; *************** *** 380,386 **** ** Error handling. */ ! #if !(HAVE_STRERROR - 0) static char * strerror(errnum) int errnum; --- 380,386 ---- ** Error handling. */ ! #if !HAVE_STRERROR static char * strerror(errnum) int errnum; *************** *** 391,397 **** return (errnum > 0 && errnum <= sys_nerr) ? sys_errlist[errnum] : _("Unknown system error"); } ! #endif /* !(HAVE_STRERROR - 0) */ static void eats(name, num, rname, rnum) --- 391,397 ---- return (errnum > 0 && errnum <= sys_nerr) ? sys_errlist[errnum] : _("Unknown system error"); } ! #endif /* !HAVE_STRERROR */ static void eats(name, num, rname, rnum) *************** *** 448,454 **** static void usage P((void)) { ! (void) fprintf(stderr, _("%s: usage is %s [ --version ] [ -s ] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\t[ -d directory ] [ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n"), progname, progname); (void) exit(EXIT_FAILURE); } --- 448,456 ---- static void usage P((void)) { ! (void) fprintf(stderr, _("%s: usage is %s \ ! [ --version ] [ -s ] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\ ! \t[ -d directory ] [ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n"), progname, progname); (void) exit(EXIT_FAILURE); } *************** *** 472,484 **** #ifdef unix (void) umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH)); #endif /* defined unix */ ! #if HAVE_GETTEXT - 0 ! (void) setlocale(LC_MESSAGES, ""); #ifdef TZ_DOMAINDIR (void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR); #endif /* defined TEXTDOMAINDIR */ (void) textdomain(TZ_DOMAIN); ! #endif /* HAVE_GETTEXT - 0 */ progname = argv[0]; for (i = 1; i < argc; ++i) if (strcmp(argv[i], "--version") == 0) { --- 474,486 ---- #ifdef unix (void) umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH)); #endif /* defined unix */ ! #if HAVE_GETTEXT ! (void) setlocale(LC_ALL, ""); #ifdef TZ_DOMAINDIR (void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR); #endif /* defined TEXTDOMAINDIR */ (void) textdomain(TZ_DOMAIN); ! #endif /* HAVE_GETTEXT */ progname = argv[0]; for (i = 1; i < argc; ++i) if (strcmp(argv[i], "--version") == 0) { *************** *** 631,652 **** (void) exit(EXIT_FAILURE); result = link(fromname, toname); ! #if (HAVE_SYMLINK - 0) if (result != 0 && ! access(fromname, F_OK) == 0 && ! !itsdir(fromname)) { ! const char *s = tofile; ! register char * symlinkcontents = NULL; ! while ((s = strchr(s+1, '/')) != NULL) ! symlinkcontents = ecatalloc(symlinkcontents, "../"); ! symlinkcontents = ecatalloc(symlinkcontents, fromfile); ! result = symlink(symlinkcontents, toname); ! if (result == 0) warning(_("hard link failed, symbolic link used")); ! ifree(symlinkcontents); } ! #endif if (result != 0) { const char *e = strerror(errno); --- 633,659 ---- (void) exit(EXIT_FAILURE); result = link(fromname, toname); ! #if HAVE_SYMLINK if (result != 0 && ! access(fromname, F_OK) == 0 && ! !itsdir(fromname)) { ! const char *s = tofile; ! register char * symlinkcontents = NULL; ! while ((s = strchr(s+1, '/')) != NULL) ! symlinkcontents = ! ecatalloc(symlinkcontents, ! "../"); ! symlinkcontents = ! ecatalloc(symlinkcontents, ! fromfile); ! result = symlink(symlinkcontents, ! toname); ! if (result == 0) warning(_("hard link failed, symbolic link used")); ! ifree(symlinkcontents); } ! #endif /* HAVE_SYMLINK */ if (result != 0) { const char *e = strerror(errno); *************** *** 804,810 **** */ eat(zp->z_filename, zp->z_linenum); zp->z_stdoff = gethms(zp->z_rule, _("unruly zone"), ! TRUE); /* ** Note, though, that if there's no rule, ** a '%s' in the format is a bad thing. --- 811,817 ---- */ eat(zp->z_filename, zp->z_linenum); zp->z_stdoff = gethms(zp->z_rule, _("unruly zone"), ! TRUE); /* ** Note, though, that if there's no rule, ** a '%s' in the format is a bad thing. *************** *** 1107,1113 **** zones[nzones - 1].z_untiltime > min_time && zones[nzones - 1].z_untiltime < max_time && zones[nzones - 1].z_untiltime >= z.z_untiltime) { ! error(_("Zone continuation line end time is not after end time of previous line")); return FALSE; } } --- 1114,1122 ---- zones[nzones - 1].z_untiltime > min_time && zones[nzones - 1].z_untiltime < max_time && zones[nzones - 1].z_untiltime >= z.z_untiltime) { ! error(_( ! "Zone continuation line end time is not after end time of previous line" ! )); return FALSE; } } *************** *** 1140,1150 **** dayoff = 0; cp = fields[LP_YEAR]; if (sscanf(cp, scheck(cp, "%d"), &year) != 1) { ! /* ! * Leapin' Lizards! ! */ ! error(_("invalid leaping year")); ! return; } j = EPOCH_YEAR; while (j != year) { --- 1149,1159 ---- dayoff = 0; cp = fields[LP_YEAR]; if (sscanf(cp, scheck(cp, "%d"), &year) != 1) { ! /* ! ** Leapin' Lizards! ! */ ! error(_("invalid leaping year")); ! return; } j = EPOCH_YEAR; while (j != year) { *************** *** 1211,1217 **** return; } if ((lp = byword(fields[LP_ROLL], leap_types)) == NULL) { ! error(_("illegal Rolling/Stationary field on Leap line")); return; } leapadd(tadd(t, tod), positive, lp->l_value, count); --- 1220,1228 ---- return; } if ((lp = byword(fields[LP_ROLL], leap_types)) == NULL) { ! error(_( ! "illegal Rolling/Stationary field on Leap line" ! )); return; } leapadd(tadd(t, tod), positive, lp->l_value, count); *************** *** 1473,1486 **** while (fromi < timecnt && attypes[fromi].type == 0) ++fromi; /* handled by default rule */ for ( ; fromi < timecnt; ++fromi) { ! if (toi != 0 ! && ((attypes[fromi].at ! + gmtoffs[attypes[toi - 1].type]) ! <= (attypes[toi - 1].at ! + gmtoffs[toi == 1 ? 0 ! : attypes[toi - 2].type]))) { ! attypes[toi - 1].type = attypes[fromi].type; ! continue; } if (toi == 0 || attypes[toi - 1].type != attypes[fromi].type) --- 1484,1496 ---- while (fromi < timecnt && attypes[fromi].type == 0) ++fromi; /* handled by default rule */ for ( ; fromi < timecnt; ++fromi) { ! if (toi != 0 && ((attypes[fromi].at + ! gmtoffs[attypes[toi - 1].type]) <= ! (attypes[toi - 1].at + gmtoffs[toi == 1 ? 0 ! : attypes[toi - 2].type]))) { ! attypes[toi - 1].type = ! attypes[fromi].type; ! continue; } if (toi == 0 || attypes[toi - 1].type != attypes[fromi].type) *************** *** 1526,1532 **** convert(eitol(typecnt), tzh.tzh_typecnt); convert(eitol(charcnt), tzh.tzh_charcnt); (void) strncpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic); ! #define DO(field) (void) fwrite((void *) tzh.field, (size_t) sizeof tzh.field, (size_t) 1, fp) DO(tzh_magic); DO(tzh_reserved); DO(tzh_ttisgmtcnt); --- 1536,1543 ---- convert(eitol(typecnt), tzh.tzh_typecnt); convert(eitol(charcnt), tzh.tzh_charcnt); (void) strncpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic); ! #define DO(field) (void) fwrite((void *) tzh.field, \ ! (size_t) sizeof tzh.field, (size_t) 1, fp) DO(tzh_magic); DO(tzh_reserved); DO(tzh_ttisgmtcnt); *************** *** 1745,1756 **** continue; } if (*startbuf == '\0' && ! startoff == oadd(zp->z_gmtoff, ! stdoff)) { ! doabbr(startbuf, zp->z_format, ! rp->r_abbrvar, ! rp->r_stdoff != 0); ! } } eats(zp->z_filename, zp->z_linenum, rp->r_filename, rp->r_linenum); --- 1756,1768 ---- continue; } if (*startbuf == '\0' && ! startoff == oadd(zp->z_gmtoff, ! stdoff)) ! doabbr(startbuf, ! zp->z_format, ! rp->r_abbrvar, ! rp->r_stdoff != ! 0); } eats(zp->z_filename, zp->z_linenum, rp->r_filename, rp->r_linenum); *************** *** 2041,2047 **** else while ((*dp = *cp++) != '"') if (*dp != '\0') ++dp; ! else error(_("Odd number of quotation marks")); } while (*cp != '\0' && *cp != '#' && (!isascii(*cp) || !isspace((unsigned char) *cp))); if (isascii(*cp) && isspace((unsigned char) *cp)) --- 2053,2061 ---- else while ((*dp = *cp++) != '"') if (*dp != '\0') ++dp; ! else error(_( ! "Odd number of quotation marks" ! )); } while (*cp != '\0' && *cp != '#' && (!isascii(*cp) || !isspace((unsigned char) *cp))); if (isascii(*cp) && isspace((unsigned char) *cp)) *************** *** 2162,2168 **** } if (i < 0 || i >= len_months[isleap(y)][m]) { if (noise) ! warning(_("rule goes past start/end of month--will not work with pre-2004 versions of zic")); } } if (dayoff < 0 && !TYPE_SIGNED(zic_t)) --- 2176,2183 ---- } if (i < 0 || i >= len_months[isleap(y)][m]) { if (noise) ! warning(_("rule goes past start/end of month--\ ! will not work with pre-2004 versions of zic")); } } if (dayoff < 0 && !TYPE_SIGNED(zic_t))

2 1

Re: FW: IANA time zone registration - proposal
by Guy Harris Feb. 3, 2005

Feb. 3, 2005

Paul Eggert wrote: > However -- in case this comes up -- as far as I know we have never > relied on their case-sensitivity, and there are no plans to do so. ...which is a good thing, given that in the Olson code they're file names, and in OS X, which uses the Olson code, the files are probably going to be stored on a case-insensitive HFS+ file system. (Not that any good reason to rely on the case-sensitivity comes to mind in any case.)

1 0

RE: FW: glibc, Linux: about the time zone transition values in th e lo calt ime file
by Fei Yuming-CYF001 Feb. 3, 2005

Feb. 3, 2005

Thank you all for the responses. Markus exactly explained the why. (In my application, I needed to get the local-broken-down-time format of the transition time point, but do NOT apply the STD/DST transition to it. The one mentioned in my previous email is the result that the DST transition has been applied to it, which was my fault. I figured out a way to fix it and get the right result.) Yuming -----Original Message----- From: Markus Kuhn [mailto:Markus.Kuhn@cl.cam.ac.uk] Sent: Thursday, February 03, 2005 11:04 AM To: Fei Yuming-CYF001 Cc: tz(a)elsie.nci.nih.gov Subject: Re: FW: glibc, Linux: about the time zone transition values in the lo calt ime file "Olson, Arthur David (NIH/NCI)" wrote on 2005-02-03 13:57 UTC: Fei Yuming <Yuming.Fei(a)motorola.com> wrote: > On Linux systems, it seems that the transitions stored in the localtime file > are not the current time to start the transition, but the new local current > time right after the transition. The following might help to clarify what I suspect you might got confused about: The transition times are stored in the "Seconds Since The Epoch (time_t)" time scale, which itself (like UTC) has *no* DST transitions. The effect you observed occured only *after* the application of the time_t->local-broken-down-time conversion, which you applied to convert the time_t value back into a human-consumable local-time yyyy-mm-dd hh:mm:ss display. It is only natural, that the transition time point itself is displayed using the same convention as the time point immediately afterwards. [By the way: This is for the same reason for which most digital clocks show 00:00 and not 24:00 at the midnight transition. Note that 24:00 would be valid only for the infinitesimal point in time at exactly midnight (and therefore invisible to the human eye), whereas 00:00 is a valid truncation until 00:01 is reached. Therefore, we use the backwards-looking notation 24:00 only when we refer to the end of a time interval (as in tonight 22:00-24:00), but not when we refer to the current time (as in "It is now 00:00.").] Markus -- Markus Kuhn, Computer Lab, Univ of Cambridge, GB http://www.cl.cam.ac.uk/~mgk25/ | __oo_O..O_oo__

1 0

FW: glibc, Linux: about the time zone transition values in the lo calt ime file
by Olson, Arthur David (NIH/NCI) Feb. 3, 2005

Feb. 3, 2005

Yuming is not on the time zone mailing list; direct replies appropriately. --ado _____ From: Fei Yuming-CYF001 [mailto:Yuming.Fei@motorola.com] Sent: Tuesday, February 01, 2005 4:14 PM To: 'tz(a)elsie.nci.nih.gov' Subject: glibc, Linux: about the time zone transition values in the localt ime file Dear Sir: On Linux systems, it seems that the transitions stored in the localtime file are not the current time to start the transition, but the new local current time right after the transition. For example, I have the glibc-2.2.5 library on my Linux 2.4.20 system, my timezone is set to US/Central and my current time is in CST. The /etc/localtime (or /usr/share/zoneinfo/US/Central) shows that in 2005, the time to transfer into DST is 1112515200 seconds, i.e. Sun Apr 3 03:00:00 2005. (This can be got, e.g., by breaking into the glibc-2.2.5/time/tzfile.c's __tzfile_read() function, and printing out the transitions values, i.e. transitions[169] == 1112515200). However, as we know, the transition to DST is Apr 3 02:00:00 --> Apr 3 03:00:00. The time after the transition (i.e. 03:00:00) instead of the current time to start the transition (ie.. 02:00:00) has been stored in the localtime file. Could you please let me know what the reason it is to do so (i.e. why not storing 02:00:00)? I will highly appreciate your help! Yuming

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RE: glibc, Linux: about the time zone transition values in the lo calt ime file
by Olson, Arthur David (NIH/NCI) Feb. 3, 2005

Feb. 3, 2005

Here at elsie the Central time zone seems okay; witness this excerpt from the output of "zdump -v US/Central": ... US/Central Sun Apr 4 07:59:59 2004 UTC = Sun Apr 4 01:59:59 2004 CST isdst=0 US/Central Sun Apr 4 08:00:00 2004 UTC = Sun Apr 4 03:00:00 2004 CDT isdst=1 US/Central Sun Oct 31 06:59:59 2004 UTC = Sun Oct 31 01:59:59 2004 CDT isdst=1 US/Central Sun Oct 31 07:00:00 2004 UTC = Sun Oct 31 01:00:00 2004 CST isdst=0 US/Central Sun Apr 3 07:59:59 2005 UTC = Sun Apr 3 01:59:59 2005 CST isdst=0 US/Central Sun Apr 3 08:00:00 2005 UTC = Sun Apr 3 03:00:00 2005 CDT isdst=1 US/Central Sun Oct 30 06:59:59 2005 UTC = Sun Oct 30 01:59:59 2005 CDT isdst=1 US/Central Sun Oct 30 07:00:00 2005 UTC = Sun Oct 30 01:00:00 2005 CST isdst=0 US/Central Sun Apr 2 07:59:59 2006 UTC = Sun Apr 2 01:59:59 2006 CST isdst=0 US/Central Sun Apr 2 08:00:00 2006 UTC = Sun Apr 2 03:00:00 2006 CDT isdst=1 US/Central Sun Oct 29 06:59:59 2006 UTC = Sun Oct 29 01:59:59 2006 CDT isdst=1 US/Central Sun Oct 29 07:00:00 2006 UTC = Sun Oct 29 01:00:00 2006 CST isdst=0 ... --ado

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Re: Tzcode2004d.tar.gz
by Olson, Arthur David (NIH/NCI) Feb. 3, 2005

Feb. 3, 2005

The elsie copy has now been given the correct (2005) name. --ado

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Tzcode2004d.tar.gz
by Olson, Arthur David (NIH/NCI) Feb. 2, 2005

Feb. 2, 2005

The file... ftp://elsie.nci.nih.gov/pub/tzcode2004d.tar.gz ...is now available. This incorporates the (now slightly modified) changes circulated last week on the time zone mailing list to: make zic complain about links to links if the -v flag is used; have "make public" do more code checking; and add an include to "localtime.c" for the benefit of gcc systems. Note that there are no data changes. Expect one more batch of delinting changes for the code. --ado

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glibc, Linux: about the time zone transition values in the localt ime file
by Fei Yuming-CYF001 Feb. 1, 2005

Feb. 1, 2005

Dear Sir: On Linux systems, it seems that the transitions stored in the localtime file are not the current time to start the transition, but the new local current time right after the transition. For example, I have the glibc-2.2.5 library on my Linux 2.4.20 system, my timezone is set to US/Central and my current time is in CST. The /etc/localtime (or /usr/share/zoneinfo/US/Central) shows that in 2005, the time to transfer into DST is 1112515200 seconds, i.e. Sun Apr 3 03:00:00 2005. (This can be got, e.g., by breaking into the glibc-2.2.5/time/tzfile.c's __tzfile_read() function, and printing out the transitions values, i.e. transitions[169] == 1112515200). However, as we know, the transition to DST is Apr 3 02:00:00 --> Apr 3 03:00:00. The time after the transition (i.e. 03:00:00) instead of the current time to start the transition (ie.. 02:00:00) has been stored in the localtime file. Could you please let me know what the reason it is to do so (i.e. why not storing 02:00:00)? I will highly appreciate your help! Yuming

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Time Zones 1914
by Hall, Jr., Owen Jan. 29, 2005

Jan. 29, 2005

Hi, I am doing some research on the Goeben during August 4 - 8, 1914. Do you know the time zone for Rome and Messina during this period? Today they are GMT +1. Thanks in advance. Professor Hall

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Time in Ireland
by Joseph S. Myers Jan. 26, 2005

Jan. 26, 2005

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Proposed changes to localtime.c, zic.c, and Makefile
by Olson, Arthur David (NIH/NCI) Jan. 24, 2005

Jan. 24, 2005

Here are proposed changes to: 1. localtime.c, to include "float.h" for the benefit of some gcc systems (thanks to Bradley White for finding the problem). 2. zic.c, to complain about links to links if the "-v" flag is used. 3. Makefile, to ensure that a "make public" is done with the benefit of gcc diagnostics. --ado ------- localtime.c ------- *** /tmp/geta15164 Mon Jan 24 12:20:36 2005 --- /tmp/getb15164 Mon Jan 24 12:20:36 2005 *************** *** 5,11 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 7.89"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 5,11 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 7.90"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 20,25 **** --- 20,26 ---- #include "private.h" #include "tzfile.h" #include "fcntl.h" + #include "float.h" /* for FLT_MAX and DBL_MAX */ /* ** SunOS 4.1.1 headers lack O_BINARY. ------- zic.c ------- *** /tmp/geta15183 Mon Jan 24 12:20:47 2005 --- /tmp/getb15183 Mon Jan 24 12:20:47 2005 *************** *** 1,4 **** ! static char elsieid[] = "@(#)zic.c 7.118"; /* ** Regardless of the type of time_t, we do our work using this type. --- 1,4 ---- ! static char elsieid[] = "@(#)zic.c 7.119"; /* ** Regardless of the type of time_t, we do our work using this type. *************** *** 579,584 **** --- 579,589 ---- for (i = 0; i < nlinks; ++i) { eat(links[i].l_filename, links[i].l_linenum); dolink(links[i].l_from, links[i].l_to); + if (noise) + for (j = 0; j < nlinks; ++j) + if (strcmp(links[i].l_to, + links[j].l_from) == 0) + warning("link to link"); } if (lcltime != NULL) { eat("command line", 1); ------- Makefile ------- *** /tmp/geta15240 Mon Jan 24 12:21:57 2005 --- /tmp/getb15240 Mon Jan 24 12:21:57 2005 *************** *** 1,4 **** ! # @(#)Makefile 7.103 # 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). --- 1,4 ---- ! # @(#)Makefile 7.104 # 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). *************** *** 384,390 **** # The zics below ensure that each data file can stand on its own. ! public: $(ENCHILADA) zic -mkdir /tmp/,tzpublic -for i in $(TDATA) ; do zic -v -d /tmp/,tzpublic $$i 2>&1 | grep -v "starting year" ; done for i in $(TDATA) ; do zic -d /tmp/,tzpublic $$i || exit; done --- 384,392 ---- # The zics below ensure that each data file can stand on its own. ! public: ! make maintainer-clean ! make "CFLAGS=$(GCC_DEBUG_FLAGS)" -mkdir /tmp/,tzpublic -for i in $(TDATA) ; do zic -v -d /tmp/,tzpublic $$i 2>&1 | grep -v "starting year" ; done for i in $(TDATA) ; do zic -d /tmp/,tzpublic $$i || exit; done

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FW: For TZ list
by Olson, Arthur David (NIH/NCI) Jan. 23, 2005

Jan. 23, 2005

Mark Brader is not on the time zone mailing list; direct replies appropriately. --ado In a book that I'm currently reading¹, there is reproduced a Pan American Airways timeables from 1936, for their weekly "Orient Express" flights between San Francisco and Manila, and connecting flights to Chicago and the US East Coast. As it uses some time zone designations that I've never seen before, I thought the readers of the tz list might be interested. It's only a few lines, so I'll type in the entire timetable (omitting the connecting flights) for those of you might be interested. In the original, AM and PM are shown as light and bold type, and noon is N; I'll use A, P, and N respectively here. As with many railway timetables, the right-hand side reads upward. --------------------------------------------------------------------- Wed. 3:00P Lv. SAN FRANCISCO (Alameda), U.S.A. P.S.T. Ar.10:30A Tues. Thur.8:30A Ar. HONOLOLU (Pearl Harbor), H.I. H.L.T. Lv.12:00N Mon. Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I. H.L.T. Ar. 5:30P Sun. " 3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A " Sat. 6:00A Lv. MIDWAY ISLAND . . . . . . . . . M.L.T. Ar. 5:00P Sat. (International Date Line) Sun. 3:00P Ar. WAKE ISLANDS . . . . . . . . . . 165° Lv. 6:00A Sun. Mon. 6:00A Lv. WAKE ISLANDS . . . . . . . . . . " Ar. 7:00P Sat. " 5:00P Ar. GUAM ISLAND . . . . . . . . . . 150° Lv. 6:00A " Tue. 6:00A Lv. GUAM ISLAND . . . . . . . . . . " Ar. 6:30P Fri. " 5:00P Ar. MANILA (Cavite), P.I. . . . . . 120° Lv. 4:00A* " ---------------------------------------------------------------------- *Departures from Manila subject to advancement to previous afternoon as occasion demands. All times are approximate other than at San Francisco Westbound and at Honolulu Eastbound. ---------------------------------------------------------------------- Clearly 120°, 150°, and 165° indicate time zones -8, -10, and -11; I guess H.L.T. and M.L.T. refer to Hawaii and Midway "Local Time". ¹Fallacies and Fantasies of Air Transport History, by R.E.G. Davies, published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3. -- Mark Brader "I like to think of [this] as self-explanatory." Toronto "I hope *I* think of [it] that way." msb(a)vex.net -- Donald Westlake: "Trust Me On This" --E3771ED93.1106330125/shell.vex.net--

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Re: Defect in XSH strftime
by Paul Eggert Jan. 21, 2005

Jan. 21, 2005

In <https://www.opengroup.org/sophocles/show_mail.tpl?source=L&listname=austin-…>, Eric Blake <ebb9(a)byu.net> writes: > this means that %Y is not equivalent to %C%y, since %C is documented > to be exactly two digits This topic came up around 2004-08-20 in the tz mailing list. (Please see <http://www.twinsun.com/tz/tz-link.htm> for info about the list; it is archived in <ftp://elsie.nci.nih.gov/pub/tzarchive.gz>.) The consensus was as follows (presumably a defect report could also be submitted to POSIX, as POSIX can place requirements on strftime that are over and above what ISO C requires): * The ISO C standard is broken in this area; the standardizers did not think about the problem. (One of those involved in the tz discussion was also involved with the ISO C effort.) * A Defect Report should be submitted. (Nobody has yet done so, to my knowledge.) * Best practice (which is not currently required by any standard) is to have the following behavior, originally suggested by Arthur David Olson: - %Y always generates the mathematically-correct result, even if the expression "tm.tm_year + 1900" would overflow. - %Y is always equivalent to %C%y. - %y is always in the range [00,99]. - %C is in the range [00,99] when possible. - %C is two characters long when possible. Here are some examples: %Y %C %y 10000 100 00 9999 99 99 0999 09 99 0099 00 99 0001 00 01 0000 00 00 -001 -0 01 -099 -0 99 -999 -9 99 -1000 -10 00 -10000 -100 00 %Y %C %y -2147481749 -21474817 49 2147485547 21474855 47 Note that the last example overflows 32-bit 'int', but it is the best-practice behavior even on 32-bit-int hosts. * The tz library <ftp://elsie.nci.nih.gov/pub/> now has the best-practice behavior suggested above.

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Tzcode2005c.tar.gz and tzdata2005c.tar.gz
by Olson, Arthur David (NIH/NCI) Jan. 17, 2005

Jan. 17, 2005

The files... ftp://elsie.nci.nih.gov/pub/tzcode2005c.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2005c.tar.gz ...are now available; these incorporate the changes circulated last week on the time zone mailing list to get better results when mktime runs on a system where time_t is double, along with changes to the data files (most importantly to Paraguay). Next up on the schedule: have zic warn about links to links. --ado

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IANA time zone registration - proposal
by Doug Royer Jan. 17, 2005

Jan. 17, 2005

[This was sent to some IETF mailing lists by me and someone suggested I send it to this list also] This is REV -00 of the proposal - comments welcome. Data in in it can easily updated. (Like the TZ names updated to latest copy of data) ---------------------------------------------------- A couple of years ago there was talk on the CALSCH mailing list to have an IANA time zone registration process. I have submitted a proposal for that registry to the IETF. A copy can be found at: http://inet-consulting.com/draft-royer-timezone-registry-00.txt And an HTML version: http://inet-consulting.com/draft-royer-timezone-registry-00.html I am adding the POLYGON property targeted for the -01 version that has an ADD/DELETE parameter to allow for the optional inclusion of latitude/longitude geographic areas to be included that include (add) and exclude (delete) areas from the time zone geographic region (again from the CALSCH mailing list discussions). -- Doug Royer | http://INET-Consulting.com -------------------------------|----------------------------- Doug(a)Royer.com | Office: (208)612-4638 http://Royer.com | Fax: (866)594-8574 | Cell: (208)520-4044 We Do Standards - You Need Standards

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RE: question about asia/baku 1992
by Olson, Arthur David (NIH/NCI) Jan. 14, 2005

Jan. 14, 2005

This partial output from "zdump -v Asia/Baku" indicates that there is indeed something peculiar happening around 1991 and 1992; does anyone know if the output reflects reality? --ado ... Asia/Baku Sat Mar 24 21:59:59 1990 UTC = Sun Mar 25 01:59:59 1990 BAKT isdst=0 Asia/Baku Sat Mar 24 22:00:00 1990 UTC = Sun Mar 25 03:00:00 1990 BAKST isdst=1 Asia/Baku Sat Sep 29 21:59:59 1990 UTC = Sun Sep 30 02:59:59 1990 BAKST isdst=1 Asia/Baku Sat Sep 29 22:00:00 1990 UTC = Sun Sep 30 02:00:00 1990 BAKT isdst=0 Asia/Baku Sat Mar 30 21:59:59 1991 UTC = Sun Mar 31 01:59:59 1991 BAKT isdst=0 Asia/Baku Sat Mar 30 22:00:00 1991 UTC = Sun Mar 31 02:00:00 1991 BAKST isdst=1 Asia/Baku Thu Aug 29 19:59:59 1991 UTC = Thu Aug 29 23:59:59 1991 BAKST isdst=1 Asia/Baku Thu Aug 29 20:00:00 1991 UTC = Fri Aug 30 00:00:00 1991 AZST isdst=1 Asia/Baku Sat Sep 28 22:59:59 1991 UTC = Sun Sep 29 02:59:59 1991 AZST isdst=1 Asia/Baku Sat Sep 28 23:00:00 1991 UTC = Sun Sep 29 02:00:00 1991 AZT isdst=0 Asia/Baku Sat Mar 28 19:59:59 1992 UTC = Sat Mar 28 22:59:59 1992 AZT isdst=0 Asia/Baku Sat Mar 28 20:00:00 1992 UTC = Sun Mar 29 00:00:00 1992 AZST isdst=1 Asia/Baku Sat Sep 26 18:59:59 1992 UTC = Sat Sep 26 22:59:59 1992 AZST isdst=1 Asia/Baku Sat Sep 26 19:00:00 1992 UTC = Sat Sep 26 22:00:00 1992 AZT isdst=0 Asia/Baku Sat Sep 26 22:59:59 1992 UTC = Sun Sep 27 01:59:59 1992 AZT isdst=0 Asia/Baku Sat Sep 26 23:00:00 1992 UTC = Sun Sep 27 03:00:00 1992 AZT isdst=0 Asia/Baku Sun Dec 31 19:59:59 1995 UTC = Sun Dec 31 23:59:59 1995 AZT isdst=0 Asia/Baku Sun Dec 31 20:00:00 1995 UTC = Mon Jan 1 01:00:00 1996 AZST isdst=1 Asia/Baku Sun Oct 27 00:59:59 1996 UTC = Sun Oct 27 05:59:59 1996 AZST isdst=1 Asia/Baku Sun Oct 27 01:00:00 1996 UTC = Sun Oct 27 05:00:00 1996 AZT isdst=0 Asia/Baku Sat Mar 29 20:59:59 1997 UTC = Sun Mar 30 00:59:59 1997 AZT isdst=0 Asia/Baku Sat Mar 29 21:00:00 1997 UTC = Sun Mar 30 02:00:00 1997 AZST isdst=1 Asia/Baku Sat Oct 25 19:59:59 1997 UTC = Sun Oct 26 00:59:59 1997 AZST isdst=1 Asia/Baku Sat Oct 25 20:00:00 1997 UTC = Sun Oct 26 00:00:00 1997 AZT isdst=0 ...

2 1

FW: question about asia/baku 1992
by Olson, Arthur David (NIH/NCI) Jan. 13, 2005

Jan. 13, 2005

Klaus Schmid is not on the time zone mailing list; direct replies appropriately. --ado >From klaus.schmid(a)wtal.de Mon Jan 10 20:28:02 2005 Return-Path: <klaus.schmid(a)wtal.de> Received: from smtp.tal.de (s05.tal.de [81.92.0.8]) by lecserver.nci.nih.gov (8.12.10/8.12.10) with ESMTP id j0B1RSHG000047 for <tz(a)elsie.nci.nih.gov>; Mon, 10 Jan 2005 20:27:29 -0500 (EST) Received: from [85.74.4.109] (J046d.j.pppool.de [85.74.4.109]) by smtp.tal.de (SMTP.TAL.DE) with ESMTP id 23F336F9C3 for <tz(a)elsie.nci.nih.gov>; Sun, 9 Jan 2005 23:43:59 +0100 (CET) Message-ID: <41E1B3AF.4030606(a)wtal.de> Date: Sun, 09 Jan 2005 23:43:59 +0100 From: Klaus Schmid <klaus.schmid(a)wtal.de> User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: tz(a)lecserver.nci.nih.gov Subject: question about asia/baku 1992 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Status: RO Dear List, I have a question about the following data lines # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 - # i.e. Sep 26 Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:00 1:00 BAKST 1991 Aug 30 # independence 3:00 RussiaAsia AZ%sT 1992 Sep lastSun 2:00s # i.e. Sep 27 4:00 - AZT 1996 # Azerbaijan time Now if I try to interprete these lines I get: from 1992 Mar to 1992 Sep 26 23:00 (local): GMTOFF= 3:00 and SAVE= 1:00 i.e. LOCALOFF= +4:00 ==> 1992 Sep 26 23:00 (local) == 1992 Sep 26 19:00 zulu from 1992 Sep 26 19:00 zulu to 1992 Sep 26 23:00 zulu: GMTOFF= LOCALOFF= +3:00 from 1992 Sep 26 23:00 zulu to 1996: GMTOFF= LOCALOFF= +4:00 This would mean a local offset change ocurred for only four hours. Is this correct? Best Regards, Klaus Schmid

1 0

Revised mktime on systems with exotic time_t types
by Olson, Arthur David (NIH/NCI) Jan. 13, 2005

Jan. 13, 2005

Thanks to Paul Eggert and Ken Pizzini for checking the proposed changes to improve mktime on systems with exotic time_t types. Below find a revised version of the changes; as usual for yours truly, these are relative to what's currently available using ftp. With providence, a new version of the time zone stuff incorporating these changes and Paul's proposed data changes will go out next week. --ado ------- localtime.c ------- *** /tmp/geta10193 Thu Jan 13 09:58:48 2005 --- /tmp/getb10193 Thu Jan 13 09:58:48 2005 *************** *** 1,9 **** /* - ** XXX--have mktime et al. do the right thing when time_t is exotic - ** (for example, double). - */ - - /* ** This file is in the public domain, so clarified as of ** 1996-06-05 by Arthur David Olson (arthur_david_olson(a)nih.gov) */ --- 1,4 ---- *************** *** 10,16 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 7.86"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 5,11 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 7.89"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 1061,1067 **** for (i = 1; i < sp->timecnt; ++i) if (t < sp->ats[i]) break; ! i = sp->types[i - 1]; } ttisp = &sp->ttis[i]; /* --- 1056,1062 ---- for (i = 1; i < sp->timecnt; ++i) if (t < sp->ats[i]) break; ! i = (int) sp->types[i - 1]; } ttisp = &sp->ttis[i]; /* *************** *** 1092,1102 **** */ struct tm * ! localtime_r(timep, tm) const time_t * const timep; ! struct tm * tm; { ! return localsub(timep, 0L, tm); } /* --- 1087,1097 ---- */ struct tm * ! localtime_r(timep, tmp) const time_t * const timep; ! struct tm * tmp; { ! return localsub(timep, 0L, tmp); } /* *************** *** 1154,1164 **** */ struct tm * ! gmtime_r(timep, tm) const time_t * const timep; ! struct tm * tm; { ! return gmtsub(timep, 0L, tm); } #ifdef STD_INSPIRED --- 1149,1159 ---- */ struct tm * ! gmtime_r(timep, tmp) const time_t * const timep; ! struct tm * tmp; { ! return gmtsub(timep, 0L, tmp); } #ifdef STD_INSPIRED *************** *** 1338,1346 **** const time_t * const timep; char * buf; { ! struct tm tm; ! return asctime_r(localtime_r(timep, &tm), buf); } /* --- 1333,1341 ---- const time_t * const timep; char * buf; { ! struct tm mytm; ! return asctime_r(localtime_r(timep, &mytm), buf); } /* *************** *** 1441,1450 **** { register const struct state * sp; register int dir; - register int bits; register int i, j; register int saved_seconds; register long li; long y; time_t newt; time_t t; --- 1436,1446 ---- { register const struct state * sp; register int dir; register int i, j; register int saved_seconds; register long li; + register time_t lo; + register time_t hi; long y; time_t newt; time_t t; *************** *** 1518,1545 **** yourtm.tm_sec = 0; } /* ! ** Divide the search space in half ! ** (this works whether time_t is signed or unsigned). */ ! bits = TYPE_BIT(time_t) - 1; ! /* ! ** If time_t is signed, then 0 is just above the median, ! ** assuming two's complement arithmetic. ! ** If time_t is unsigned, then (1 << bits) is just above the median. ! */ ! t = TYPE_SIGNED(time_t) ? 0 : (((unsigned long) 1) << bits); for ( ; ; ) { ! if ((*funcp)(&t, offset, &mytm) == NULL) ! return WRONG; /* XXX probably wrong */ ! dir = tmcomp(&mytm, &yourtm); if (dir != 0) { ! if (bits-- < 0) return WRONG; ! if (bits < 0) ! --t; /* may be needed if new t is minimal */ ! else if (dir > 0) ! t -= ((long) 1) << bits; ! else t += ((long) 1) << bits; continue; } if (yourtm.tm_isdst < 0 || mytm.tm_isdst == yourtm.tm_isdst) --- 1514,1562 ---- yourtm.tm_sec = 0; } /* ! ** Do a binary search (this works whatever time_t's type is). */ ! if (!TYPE_SIGNED(time_t)) { ! lo = 0; ! hi = lo - 1; ! } else if (!TYPE_INTEGRAL(time_t)) { ! if (sizeof(time_t) > sizeof(float)) ! hi = (time_t) DBL_MAX; ! else hi = (time_t) FLT_MAX; ! lo = -hi; ! } else { ! lo = 1; ! for (i = 0; i < (int) TYPE_BIT(time_t) - 1; ++i) ! lo *= 2; ! hi = -(lo + 1); ! } for ( ; ; ) { ! t = lo / 2 + hi / 2; ! if (t < lo) ! t = lo; ! else if (t > hi) ! t = hi; ! if ((*funcp)(&t, offset, &mytm) == NULL) { ! /* ! ** Assume that t is too extreme to be represented in ! ** a struct tm; arrange things so that it is less ! ** extreme on the next pass. ! */ ! dir = (t > 0) ? 1 : -1; ! } else dir = tmcomp(&mytm, &yourtm); if (dir != 0) { ! if (t == lo) { ! ++t; ! ++lo; ! } else if (t == hi) { ! --t; ! --hi; ! } ! if (lo > hi) return WRONG; ! if (dir > 0) ! hi = t; ! else lo = t; continue; } if (yourtm.tm_isdst < 0 || mytm.tm_isdst == yourtm.tm_isdst) *************** *** 1569,1575 **** newt = t + sp->ttis[j].tt_gmtoff - sp->ttis[i].tt_gmtoff; if ((*funcp)(&newt, offset, &mytm) == NULL) ! return WRONG; /* XXX probably wrong */ if (tmcomp(&mytm, &yourtm) != 0) continue; if (mytm.tm_isdst != yourtm.tm_isdst) --- 1586,1592 ---- newt = t + sp->ttis[j].tt_gmtoff - sp->ttis[i].tt_gmtoff; if ((*funcp)(&newt, offset, &mytm) == NULL) ! continue; if (tmcomp(&mytm, &yourtm) != 0) continue; if (mytm.tm_isdst != yourtm.tm_isdst) ------- Makefile ------- *** /tmp/geta10212 Thu Jan 13 09:58:57 2005 --- /tmp/getb10212 Thu Jan 13 09:58:57 2005 *************** *** 1,4 **** ! # @(#)Makefile 7.102 # 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). --- 1,4 ---- ! # @(#)Makefile 7.103 # 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). *************** *** 396,404 **** typecheck: make clean ! for i in "long long" double unsigned; \ do \ ! make CFLAGS="-D_TIME_T \"-Dtime_t=$$i\"" ; \ ./zdump -v US/Eastern ; \ make clean ; \ done --- 396,404 ---- typecheck: make clean ! for i in "long long" unsigned double; \ do \ ! make CFLAGS="-DTYPECHECK -D_TIME_T \"-Dtime_t=$$i\"" ; \ ./zdump -v US/Eastern ; \ make clean ; \ done ------- zdump.c ------- *** /tmp/geta10231 Thu Jan 13 09:59:07 2005 --- /tmp/getb10231 Thu Jan 13 09:59:07 2005 *************** *** 1,4 **** ! static char elsieid[] = "@(#)zdump.c 7.59"; /* ** This code has been made independent of the rest of the time --- 1,4 ---- ! static char elsieid[] = "@(#)zdump.c 7.61"; /* ** This code has been made independent of the rest of the time *************** *** 149,159 **** static long delta P((struct tm * newp, struct tm * oldp)); static void dumptime P((const struct tm * tmp)); static time_t hunt P((char * name, time_t lot, time_t hit)); ! static void setabsolutes(); static void show P((char * zone, time_t t, int v)); static const char * tformat P((void)); static time_t yeartot P((long y)); int main(argc, argv) int argc; --- 149,195 ---- static long delta P((struct tm * newp, struct tm * oldp)); static void dumptime P((const struct tm * tmp)); static time_t hunt P((char * name, time_t lot, time_t hit)); ! static void setabsolutes P((void)); static void show P((char * zone, time_t t, int v)); static const char * tformat P((void)); static time_t yeartot P((long y)); + #ifndef TYPECHECK + #define my_localtime localtime + #else /* !defined TYPECHECK */ + static struct tm * + my_localtime(tp) + time_t * tp; + { + register struct tm * tmp; + + tmp = localtime(tp); + if (tp != NULL && tmp != NULL) { + struct tm tm; + register time_t t; + + tm = *tmp; + t = mktime(&tm); + if (t - *tp >= 1 || *tp - t >= 1) { + (void) fflush(stdout); + (void) fprintf(stderr, "\n%s: ", progname); + (void) fprintf(stderr, tformat(), *tp); + (void) fprintf(stderr, " ->"); + (void) fprintf(stderr, " sec %d", tmp->tm_sec); + (void) fprintf(stderr, " min %d", tmp->tm_min); + (void) fprintf(stderr, " hour %d", tmp->tm_hour); + (void) fprintf(stderr, " mday %d", tmp->tm_mday); + (void) fprintf(stderr, " mon %d", tmp->tm_mon); + (void) fprintf(stderr, " year %d", tmp->tm_year); + (void) fprintf(stderr, " -> "); + (void) fprintf(stderr, tformat(), t); + (void) fprintf(stderr, "\n"); + } + } + return tmp; + } + #endif /* !defined TYPECHECK */ + int main(argc, argv) int argc; *************** *** 208,219 **** if (cutarg != NULL) { long lo; long hi; ! char c; ! if (sscanf(cutarg, "%ld%c", &hi, &c) == 1) { cuthiyear = hi; } else if (sscanf(cutarg, "%ld,%ld%c", ! &lo, &hi, &c) == 2) { cutloyear = lo; cuthiyear = hi; } else { --- 244,255 ---- if (cutarg != NULL) { long lo; long hi; ! char dummy; ! if (sscanf(cutarg, "%ld%c", &hi, &dummy) == 1) { cuthiyear = hi; } else if (sscanf(cutarg, "%ld,%ld%c", ! &lo, &hi, &dummy) == 2) { cutloyear = lo; cuthiyear = hi; } else { *************** *** 266,272 **** show(argv[i], t, TRUE); if (t < cutlotime) t = cutlotime; ! tmp = localtime(&t); if (tmp != NULL) { tm = *tmp; (void) strncpy(buf, abbr(&tm), (sizeof buf) - 1); --- 302,308 ---- show(argv[i], t, TRUE); if (t < cutlotime) t = cutlotime; ! tmp = my_localtime(&t); if (tmp != NULL) { tm = *tmp; (void) strncpy(buf, abbr(&tm), (sizeof buf) - 1); *************** *** 399,405 **** register struct tm * tmp; char loab[MAX_STRING_LENGTH]; ! lotmp = localtime(&lot); if (lotmp != NULL) { lotm = *lotmp; (void) strncpy(loab, abbr(&lotm), (sizeof loab) - 1); --- 435,441 ---- register struct tm * tmp; char loab[MAX_STRING_LENGTH]; ! lotmp = my_localtime(&lot); if (lotmp != NULL) { lotm = *lotmp; (void) strncpy(loab, abbr(&lotm), (sizeof loab) - 1); *************** *** 414,420 **** ++t; else if (t >= hit) --t; ! tmp = localtime(&t); if (tmp != NULL) tm = *tmp; if ((lotmp == NULL || tmp == NULL) ? (lotmp == tmp) : --- 450,456 ---- ++t; else if (t >= hit) --t; ! tmp = my_localtime(&t); if (tmp != NULL) tm = *tmp; if ((lotmp == NULL || tmp == NULL) ? (lotmp == tmp) : *************** *** 477,483 **** } (void) printf(" = "); } ! tmp = localtime(&t); dumptime(tmp); if (tmp != NULL) { if (*abbr(tmp) != '\0') --- 513,519 ---- } (void) printf(" = "); } ! tmp = my_localtime(&t); dumptime(tmp); if (tmp != NULL) { if (*abbr(tmp) != '\0')

1 0

proposed tz changes for Paraguay, Israel, "backward", and commentary
by Paul Eggert Jan. 13, 2005

Jan. 13, 2005

"Olson, Arthur David (NIH/NCI)" <olsona(a)dc37a.nci.nih.gov> writes: > Paul Eggert typically handles rule changes; Paul has been swamped of late. True, but we really should get those Paraguay changes out the door, since we're currently mishandling last spring's time stamps. Here is a proposed set of patches that accumulate all the updates I've been saving up. * Changes to current or future data. - Paraguay's DST transitions have changed. (Thanks to Jesper Norgaard Welen and Steffen Thorsen for this.) - Israel's DST transitions will change. The current proposals are only tentative, but are more likely than the old tz data. (Thanks to Ephraim Silverberg for this.) * Database changes invisible to users. - The "backward" file no longer contains links to links. (Thanks to Mark Davis for finding these). * Commentary changes. - The latest ISO 8601 version is now dated 2004, not 2001. - README now no longer suggests that the tz data is not particularly useful, and warns about dates before 1970. - Add comments about Unalaska, which may have deviated from statutory time from early 1967 to 1983. (Thanks to David Flater for this.) - Add comments about Mount Washington Observatory, which observes EST all year. (Thanks to Dave Cantor for this.) - Add comments about Germany's secret WWII manned weather stations in East Greenland and Franz Josef Land. - Add links to calconnect.org, VelaTerra. - Remove link to Airlines, Airplanes, and Airports, as it no longer seems to make time zone data public. - Update many URLs to follow resources that moved. =================================================================== RCS file: RCS/README,v retrieving revision 2001.3 retrieving revision 2001.3.0.1 diff -pu -r2001.3 -r2001.3.0.1 --- README 2001/06/05 17:48:21 2001.3 +++ README 2005/01/11 22:18:14 2001.3.0.1 @@ -52,8 +52,10 @@ substituting your desired installation d To use the new functions, use a "-ltz" option when compiling or linking. -Historical local time information has been included here not because it -is particularly useful, but rather to: +Historical local time information has been included here to: + +* provide a compendium of data about the history of civil time + that is useful even if the data are not 100% accurate; * give an idea of the variety of local time rules that have existed in the past and thus an idea of the variety that may be @@ -63,7 +65,9 @@ is particularly useful, but rather to: system. The information in the time zone data files is by no means authoritative; -if you know that the rules are different from those in a file, by all means +the files currently do not even attempt to covar all time stamps before +1970, and there are undoubtedly errors even for time stamps since 1970. +If you know that the rules are different from those in a file, by all means feel free to change file (and please send the changed version to tz(a)elsie.nci.nih.gov for use in the future). Europeans take note! =================================================================== RCS file: RCS/asia,v retrieving revision 2004.5 retrieving revision 2004.5.0.1 diff -pu -r2004.5 -r2004.5.0.1 --- asia 2004/10/11 18:44:51 2004.5 +++ asia 2005/01/11 22:18:14 2004.5.0.1 @@ -639,7 +639,7 @@ Rule Zion 1988 only - Apr 9 0:00 1:00 D Rule Zion 1988 only - Sep 3 0:00 0 S # From Ephraim Silverberg <ephraim(a)cs.huji.ac.il> -# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17 and 2000-07-25): +# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, and 2004-12-22): # According to the Office of the Secretary General of the Ministry of # Interior, there is NO set rule for Daylight-Savings/Standard time changes. @@ -690,13 +690,13 @@ Rule Zion 1995 only - Sep 3 0:00 0 S # time, Haim Ramon. The official announcement regarding 1996-1998 # (with the dates for 1997-1998 no longer being relevant) can be viewed at: # -# ftp://ftp.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz +# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz # # The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa. # # The official announcements for the years 1997-1999 can be viewed at: # -# ftp://ftp.huji.ac.il/pub/tz/announcements/YYYY.ps.gz +# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz # # where YYYY is the relevant year. @@ -716,12 +716,12 @@ Rule Zion 1999 only - Sep 3 2:00 0 S # # The official announcement for the start date of 2000 can be viewed at: # -# ftp://ftp.huji.ac.il/pub/tz/announcements/2000-start.ps.gz +# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz # # The official announcement for the end date of 2000 and the dates # for the years 2001-2004 can be viewed at: # -# ftp://ftp.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz +# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 2000 only - Apr 14 2:00 1:00 D @@ -735,52 +735,97 @@ Rule Zion 2003 only - Oct 3 1:00 0 S Rule Zion 2004 only - Apr 7 1:00 1:00 D Rule Zion 2004 only - Sep 22 1:00 0 S -# From Paul Eggert (2000-07-25): -# Here are guesses for rules after 2004. -# They are probably wrong, but they are more likely than no DST at all. +# Yesterday, the Knesset Interior Committee passed a proposed (originally +# in March 2004) change to the Time Setting Law that would make the dates +# for DST from 2005 and beyond so that DST starts on the night _after_ the +# first night of the Passover holiday at midnight until midnight of the +# Saturday night _before_ the fast of Yom Kippur. +# +# Those who can read Hebrew can view the proposal at: +# +# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+.ps +# +# The proposal still has to be passed by the Knesset (three readings) for +# it to become law.... + +# From Paul Eggert (2004-12-22): +# For now, guess that the rules proposed on 2004-12-20 will be adopted. +# This is quite possibly wrong, but it is more likely than no DST at all. +# I used Ed Reingold's cal-hebrew in GNU Emacs 21.3, along with code +# written by Ephraim Silverberg, to generate this list. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Zion 2005 max - Apr 1 1:00 1:00 D -Rule Zion 2005 max - Oct 1 1:00 0 S +Rule Zion 2005 only - Apr 25 0:00 1:00 D +Rule Zion 2005 only - Oct 9 0:00 0 S +Rule Zion 2006 only - Apr 14 0:00 1:00 D +Rule Zion 2006 only - Oct 1 0:00 0 S +Rule Zion 2007 only - Apr 4 0:00 1:00 D +Rule Zion 2007 only - Sep 16 0:00 0 S +Rule Zion 2008 only - Apr 21 0:00 1:00 D +Rule Zion 2008 only - Oct 5 0:00 0 S +Rule Zion 2009 only - Apr 10 0:00 1:00 D +Rule Zion 2009 only - Sep 27 0:00 0 S +Rule Zion 2010 only - Mar 31 0:00 1:00 D +Rule Zion 2010 only - Sep 12 0:00 0 S +Rule Zion 2011 only - Apr 20 0:00 1:00 D +Rule Zion 2011 only - Oct 2 0:00 0 S +Rule Zion 2012 only - Apr 8 0:00 1:00 D +Rule Zion 2012 only - Sep 23 0:00 0 S +Rule Zion 2013 only - Mar 27 0:00 1:00 D +Rule Zion 2013 only - Sep 8 0:00 0 S +Rule Zion 2014 only - Apr 16 0:00 1:00 D +Rule Zion 2014 only - Sep 28 0:00 0 S +Rule Zion 2015 only - Apr 5 0:00 1:00 D +Rule Zion 2015 only - Sep 20 0:00 0 S +Rule Zion 2016 only - Apr 24 0:00 1:00 D +Rule Zion 2016 only - Oct 9 0:00 0 S +Rule Zion 2017 only - Apr 12 0:00 1:00 D +Rule Zion 2017 only - Sep 24 0:00 0 S +Rule Zion 2018 only - Apr 1 0:00 1:00 D +Rule Zion 2018 only - Sep 16 0:00 0 S +Rule Zion 2019 only - Apr 21 0:00 1:00 D +Rule Zion 2019 only - Oct 6 0:00 0 S +Rule Zion 2020 only - Apr 10 0:00 1:00 D +Rule Zion 2020 only - Sep 27 0:00 0 S +Rule Zion 2021 only - Mar 29 0:00 1:00 D +Rule Zion 2021 only - Sep 12 0:00 0 S +Rule Zion 2022 only - Apr 17 0:00 1:00 D +Rule Zion 2022 only - Oct 2 0:00 0 S +Rule Zion 2023 only - Apr 7 0:00 1:00 D +Rule Zion 2023 only - Sep 24 0:00 0 S +Rule Zion 2024 only - Apr 24 0:00 1:00 D +Rule Zion 2024 only - Oct 6 0:00 0 S +Rule Zion 2025 only - Apr 14 0:00 1:00 D +Rule Zion 2025 only - Sep 28 0:00 0 S +Rule Zion 2026 only - Apr 3 0:00 1:00 D +Rule Zion 2026 only - Sep 20 0:00 0 S +Rule Zion 2027 only - Apr 23 0:00 1:00 D +Rule Zion 2027 only - Oct 10 0:00 0 S +Rule Zion 2028 only - Apr 12 0:00 1:00 D +Rule Zion 2028 only - Sep 24 0:00 0 S +Rule Zion 2029 only - Apr 1 0:00 1:00 D +Rule Zion 2029 only - Sep 16 0:00 0 S +Rule Zion 2030 only - Apr 19 0:00 1:00 D +Rule Zion 2030 only - Oct 6 0:00 0 S +Rule Zion 2031 only - Apr 9 0:00 1:00 D +Rule Zion 2031 only - Sep 21 0:00 0 S +Rule Zion 2032 only - Mar 28 0:00 1:00 D +Rule Zion 2032 only - Sep 12 0:00 0 S +Rule Zion 2033 only - Apr 15 0:00 1:00 D +Rule Zion 2033 only - Oct 2 0:00 0 S +Rule Zion 2034 only - Apr 5 0:00 1:00 D +Rule Zion 2034 only - Sep 17 0:00 0 S +Rule Zion 2035 only - Apr 25 0:00 1:00 D +Rule Zion 2035 only - Oct 7 0:00 0 S +Rule Zion 2036 only - Apr 13 0:00 1:00 D +Rule Zion 2036 only - Sep 28 0:00 0 S +Rule Zion 2037 only - Apr 1 0:00 1:00 D +Rule Zion 2037 only - Sep 13 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Jerusalem 2:20:56 - LMT 1880 2:20:40 - JMT 1918 # Jerusalem Mean Time? 2:00 Zion I%sT -# From Ephraim Silverberg (2003-03-23): -# -# Minister of Interior Poraz has announced that he will respect the law -# passed in July 2000 (proposed at the time jointly by himself and -# then-MK David Azulai [Shas]) fixing the dates for 2000-2004. Hence, -# the dates for 2003 and 2004 remain unchanged.... -# -# As far as 2005 and beyond, no dates have been set. However, the -# minister has mentioned that he wishes to propose to move Israel's -# timezone in 2005 from GMT+2 to GMT+3 and upon that have DST during -# the summer months (i.e. GMT+4). However, no legislation in this -# direction is expected until the latter part of 2004 which is a long -# time off in terms of Israeli politics. - -# (2004-09-20): -# The latest rumour, however, is that in 2005, when the clock changes to -# Daylight Saving Time (date as yet unknown), the move will be a two-hour leap -# forward (from UTC+0200 to UTC+0400) and then, in the fall, the clock will -# move back only an hour to UTC+0300 thus effectively moving Israel's timezone -# from UTC+0200 to UTC+0300. However, no actual draft has been put before the -# Knesset (Israel's Parliament) though the intention is to do so this -# month [2004-09]. - -# (2004-09-26): -# Even though the draft law for the above did pass the Ministerial Committee -# for Legislative Matters three months ago, it was voted down in today's -# Cabinet meeting. The current suggestion is to keep the current timezone at -# UTC+0200 but have an extended period of Daylight Saving Time (UTC+0300) from -# the beginning of Passover holiday in the spring to after the Tabernacle -# holiday in the fall (i.e. the dates of which are governed by the Hebrew -# calendar but this means at least 184 days of DST). However, this is only a -# suggestion that was raised in today's cabinet meeting and has not yet been -# drafted. - ############################################################################### =================================================================== RCS file: RCS/backward,v retrieving revision 2004.2 retrieving revision 2004.2.0.1 diff -pu -r2004.2 -r2004.2.0.1 --- backward 2004/07/19 18:32:48 2004.2 +++ backward 2005/01/11 22:18:14 2004.2.0.1 @@ -13,7 +13,7 @@ Link America/Argentina/Jujuy America/Juj Link America/Indiana/Knox America/Knox_IN Link America/Argentina/Mendoza America/Mendoza Link America/Rio_Branco America/Porto_Acre -Link America/Cordoba America/Rosario +Link America/Argentina/Cordoba America/Rosario Link America/St_Thomas America/Virgin Link Asia/Ashgabat Asia/Ashkhabad Link Asia/Chongqing Asia/Chungking @@ -34,7 +34,7 @@ Link Australia/Hobart Australia/Tasmania Link Australia/Melbourne Australia/Victoria Link Australia/Perth Australia/West Link Australia/Broken_Hill Australia/Yancowinna -Link America/Porto_Acre Brazil/Acre +Link America/Rio_Branco Brazil/Acre Link America/Noronha Brazil/DeNoronha Link America/Sao_Paulo Brazil/East Link America/Manaus Brazil/West @@ -55,10 +55,10 @@ Link Europe/Dublin Eire Link Europe/Chisinau Europe/Tiraspol Link Europe/London GB Link Europe/London GB-Eire -Link Etc/GMT+0 GMT+0 -Link Etc/GMT-0 GMT-0 -Link Etc/GMT0 GMT0 -Link Etc/Greenwich Greenwich +Link Etc/GMT GMT+0 +Link Etc/GMT GMT-0 +Link Etc/GMT GMT0 +Link Etc/GMT Greenwich Link Asia/Hong_Kong Hongkong Link Atlantic/Reykjavik Iceland Link Asia/Tehran Iran @@ -70,7 +70,7 @@ Link Africa/Tripoli Libya Link America/Tijuana Mexico/BajaNorte Link America/Mazatlan Mexico/BajaSur Link America/Mexico_City Mexico/General -Link America/Shiprock Navajo +Link America/Denver Navajo Link Pacific/Auckland NZ Link Pacific/Chatham NZ-CHAT Link Pacific/Pago_Pago Pacific/Samoa @@ -95,6 +95,6 @@ Link America/Denver US/Mountain Link America/Los_Angeles US/Pacific Link Pacific/Pago_Pago US/Samoa Link Etc/UTC UTC -Link Etc/Universal Universal +Link Etc/UTC Universal Link Europe/Moscow W-SU -Link Etc/Zulu Zulu +Link Etc/UTC Zulu =================================================================== RCS file: RCS/europe,v retrieving revision 2004.7 retrieving revision 2004.7.0.1 diff -pu -r2004.7 -r2004.7.0.1 --- europe 2004/11/02 14:05:33 2004.7 +++ europe 2005/01/11 22:18:14 2004.7.0.1 @@ -754,6 +754,11 @@ Zone Atlantic/Faeroe -0:27:04 - LMT 1908 0:00 - WET 1981 0:00 EU WE%sT # +# From Paul Eggert (2004-10-31): +# During World War II, Germany maintained secret manned weather stations in +# East Greenland and Franz Josef Land, but we don't know their time zones. +# My source for this is Wilhelm Dege's book mentioned under Svalbard. +# # From Paul Eggert (1996-11-22): # Greenland joined the EU as part of Denmark, obtained home rule on 1979-05-01, # and left the EU on 1985-02-01. It therefore should have been using EU @@ -1633,7 +1638,7 @@ Zone Europe/Oslo 0:43:00 - LMT 1895 Jan # <http://www.svalbard.com/SvalbardFAQ.html> says that the Germans were # expelled on 1942-05-14. However, small parties of Germans did return, # and according to Wilhelm Dege's book "War North of 80" (1954) -# <http://www.utpress.utoronto.ca/publishing/rights/dege_warnorthof80.htm> +# <http://www.ucalgary.ca/UofC/departments/UP/1-55238/1-55238-110-2.html> # the German armed forces at the Svalbard weather station code-named # Haudegen did not surrender to the Allies until September 1945. # =================================================================== RCS file: RCS/northamerica,v retrieving revision 2004.7 retrieving revision 2004.7.0.1 diff -pu -r2004.7 -r2004.7.0.1 --- northamerica 2004/11/02 14:05:32 2004.7 +++ northamerica 2005/01/11 22:18:14 2004.7.0.1 @@ -208,6 +208,13 @@ Rule US 1987 max - Apr Sun>=1 2:00 1:00 # Pennsylvania, Rhode Island, South Carolina, eastern Tennessee, # Vermont, Virginia, West Virginia +# From Dave Cantor (2004-11-02): +# Early this summer I had the occasion to visit the Mount Washington +# Observatory weather station atop (of course!) Mount Washington [, NH].... +# One of the staff members said that the station was on Eastern Standard Time +# and didn't change their clocks for Daylight Saving ... so that their +# reports will always have times which are 5 hours behind UTC. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule NYC 1920 only - Mar lastSun 2:00 1:00 D Rule NYC 1920 only - Oct lastSun 2:00 0 S @@ -355,10 +362,26 @@ Zone America/Adak 12:13:21 - LMT 1867 O -11:00 US B%sT 1983 Oct 30 2:00 -10:00 US AH%sT 1983 Nov 30 -10:00 US HA%sT +# The following switches don't quite make our 1970 cutoff. +# # Shanks writes that part of southwest Alaska (e.g. Aniak) # switched from -11:00 to -10:00 on 1968-09-22 at 02:00, # and another part (e.g. Akiak) made the same switch five weeks later. -# These switches don't quite make our 1970 cutoff. +# +# From David Flater (2004-11-09): +# In e-mail, 2004-11-02, Ray Hudson, historian/liaison to the Unalaska +# Historic Preservation Commission, provided this information, which +# suggests that Unalaska deviated from statutory time from early 1967 +# possibly until 1983: +# +# Minutes of the Unalaska City Council Meeting, January 10, 1967: +# "Except for St. Paul and Akutan, Unalaska is the only important +# location not on Alaska Standard Time. The following resolution was +# made by William Robinson and seconded by Henry Swanson: Be it +# resolved that the City of Unalaska hereby goes to Alaska Standard +# Time as of midnight Friday, January 13, 1967 (1 A.M. Saturday, +# January 14, Alaska Standard Time.) This resolution was passed with +# three votes for and one against." # Hawaii # =================================================================== RCS file: RCS/southamerica,v retrieving revision 2004.7 retrieving revision 2004.7.0.1 diff -pu -r2004.7 -r2004.7.0.1 --- southamerica 2004/11/02 14:05:32 2004.7 +++ southamerica 2005/01/11 22:18:14 2004.7.0.1 @@ -942,9 +942,16 @@ Rule Para 1998 2001 - Mar Sun>=1 0:00 0 # A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the # dst method to be from the first Sunday in September to the first Sunday in # April. -Rule Para 2002 max - Apr Sun>=1 0:00 0 - -Rule Para 2002 max - Sep Sun>=1 0:00 1:00 S - +Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - +Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S +# +# From Jesper Norgaard Welen (2005-01-02): +# There are several sources that claim that Paraguay made +# a timezone rule change in autumn 2004. +# From Steffen Thorsen (2005-01-05): +# Decree 1,867 (2004-03-05) <http://www.labor.com.py/noticias.asp?id=27> +Rule Para 2004 max - Oct Sun>=15 0:00 1:00 S +Rule Para 2005 max - Mar Sun>=15 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Asuncion -3:50:40 - LMT 1890 =================================================================== RCS file: RCS/tz-link.htm,v retrieving revision 2004.5 retrieving revision 2004.5.0.2 diff -pu -r2004.5 -r2004.5.0.2 --- tz-link.htm 2004/10/11 18:44:53 2004.5 +++ tz-link.htm 2005/01/11 22:22:42 2004.5.0.2 @@ -9,7 +9,7 @@ <meta http-equiv="Content-type" content='text/html; charset="US-ASCII"' /> <meta name="DC.Creator" content="Eggert, Paul" /> <meta name="DC.Contributor" content="Olson, Arthur David" /> -<meta name="DC.Date" content="2004-09-22" /> +<meta name="DC.Date" content="2005-01-11" /> <meta name="DC.Description" content="Sources of information about time zones and daylight saving time" /> <meta name="DC.Identifier" content="http://www.twinsun.com/tz/tz-link.htm" /> @@ -136,7 +136,9 @@ title="Internet Engineering Task Force"> Calendaring and Scheduling Working Group (<abbr title="Calendaring and Scheduling Working Group">calsch</abbr>)</a> covers time zone -data; see its VTIMEZONE calendar component.</li> +data; see its VTIMEZONE calendar component. +The <a href='http://www.calconnect.org/'>Calendaring and Scheduling +Consortium</a> is promoting further work in this area.</li> <li>The <a href="http://lists.w3.org/Archives/Public/www-rdf-calendar/">www-rdf-calendar</a> list discusses <a @@ -157,7 +159,7 @@ definition that corresponded to iCalenda </ul> <h2>Other <code>tz</code> compilers</h2> <ul> -<li><a href="http://www.dachaplin.dsl.pipex.com/vzic">Vzic iCalendar +<li><a href="http://dialspace.dial.pipex.com/prod/dialspace/town/pipexdsl/s/asbm26/vzic/">Vzic iCalendar Timezone Converter</a> describes a program Vzic that compiles <code>tz</code> source into iCalendar-compatible VTIMEZONE files. Vzic is freely @@ -222,6 +224,9 @@ Java-specific format.</li> href="http://www1.tip.nl/~t876506/AboutTimeZonesHC.html">HyperCard time zones calculator</a> is a HyperCard stack.</li> <li><a +href="http://www.veladesigngroup.com/velaterra.html">VelaTerra</a> is +a Mac OS X program.</li> +<li><a href="http://www.cimmyt.org/timezone/">World Time Explorer</a> is a Microsoft Windows program.</li> </ul> @@ -243,10 +248,7 @@ is another time zone database.</li> contains data from the Time Service Department of the <abbr>US</abbr> Naval Observatory, used as the source for the <code>usno*</code> files in the <code>tz</code> distribution.</li> -<li><a href="http://www.airportcitycodes.com/aaa/">Airlines, Airplanes -and Airports</a> lists current standard times for thousands of -airports around the world. This seems to be derived from -the <a href="http://www.iata.org/ps/publications/9179.htm">Standard +<li>The <a href="http://www.iata.org/ps/publications/9179.htm">Standard Schedules Information Manual</a> of the the <a href="http://www.iata.org/">International Air Transport Association</a>, @@ -299,7 +301,8 @@ Time Zones and Time Zone Data</a>.</li> </ul> <h2>Civil time concepts and history</h2> <ul> -<li><a href="http://physics.nist.gov/time">A Walk through Time</a> +<li><a href="http://physics.nist.gov/GenInt/Time/time.html">A +Walk through Time</a> surveys the evolution of timekeeping.</li> <li><a href="http://webexhibits.org/daylightsaving/">About Daylight Saving Time - History, rationale, laws & dates</a> @@ -447,7 +450,7 @@ title="Global Positioning System">GPS</a (1999-11), 50–57 and discussed further in R. A. Nelson et al., <a href="http://www.cl.cam.ac.uk/~mgk25/time/metrologia-leapsecond.pdf">The leap second: its history and possible future</a>, -<a href="http://www.bipm.fr/metrologia/metrologia.html">Metrologia</a> +<a href="http://www.bipm.fr/metrologia/">Metrologia</a> <strong>38</strong> (2001), 509–529. <a href="http://www.ucolick.org/~sla/leapsecs/onlinebib.html">The Future of Leap Seconds</a> catalogs information about this @@ -459,12 +462,11 @@ contentious issue.</li> <a href="http://www.cl.cam.ac.uk/~mgk25/iso-time.html">A Summary of the International Standard Date and Time Notation</a> is a good summary of -<abbr title="International Organization for Standardization">ISO</abbr> -8601:1988 - Data elements and interchange formats - Information interchange -- Representation of dates and times (which has been superseded by <a -href="http://www.iso.org/iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=26780"><abbr>ISO</abbr> -8601:2000</a>).</li> +href="http://www.iso.org/iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=40874"><abbr +title="International Organization for Standardization">ISO</abbr> +8601:2004 -- Data elements and interchange formats -- Information +interchange -- Representation of dates and times</a>.</li> <li> Section 3.3 of <a href="ftp://ftp.rfc-editor.org/in-notes/rfc2822.txt">Internet @@ -482,7 +484,7 @@ protocols.</li> Best of Dates, the Worst of Dates</a> covers many problems encountered by software developers when handling dates and time stamps.</li> <li><a -href="http://oss.software.ibm.com/cvs/icu/~checkout~/icuhtml/design/formatting/ti…">Time +href="http://oss.software.ibm.com/cvs/icu/~checkout~/locale/docs/design/formattin…">Time Zone Localization</a> is a proposed mechanism for localizing time zone labels and abbreviations; for example, one might use it to specify Russian translations for "Eastern European Summer Time",

3 3

Mktime on systems with exotic time_t types
by Olson, Arthur David (NIH/NCI) Jan. 11, 2005

Jan. 11, 2005

Below find proposed changes to localtime.c to get mktime working correctly on systems with exotic time_t types (such as unsigned or double). Also included are changes to zdump.c and Makefile to arrange things that doing a... make typecheck ...exercises mktime for a good range of values. --ado ------- localtime.c ------- *** /tmp/geta3175 Tue Jan 11 11:57:49 2005 --- /tmp/getb3175 Tue Jan 11 11:57:49 2005 *************** *** 1,9 **** /* - ** XXX--have mktime et al. do the right thing when time_t is exotic - ** (for example, double). - */ - - /* ** This file is in the public domain, so clarified as of ** 1996-06-05 by Arthur David Olson (arthur_david_olson(a)nih.gov) */ --- 1,4 ---- *************** *** 10,16 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 7.86"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 5,11 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 7.87"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 1445,1450 **** --- 1440,1447 ---- register int i, j; register int saved_seconds; register long li; + register time_t lo; + register time_t hi; long y; time_t newt; time_t t; *************** *** 1518,1545 **** yourtm.tm_sec = 0; } /* ! ** Divide the search space in half ! ** (this works whether time_t is signed or unsigned). */ ! bits = TYPE_BIT(time_t) - 1; ! /* ! ** If time_t is signed, then 0 is just above the median, ! ** assuming two's complement arithmetic. ! ** If time_t is unsigned, then (1 << bits) is just above the median. ! */ ! t = TYPE_SIGNED(time_t) ? 0 : (((unsigned long) 1) << bits); for ( ; ; ) { ! if ((*funcp)(&t, offset, &mytm) == NULL) ! return WRONG; /* XXX probably wrong */ ! dir = tmcomp(&mytm, &yourtm); if (dir != 0) { ! if (bits-- < 0) return WRONG; ! if (bits < 0) ! --t; /* may be needed if new t is minimal */ ! else if (dir > 0) ! t -= ((long) 1) << bits; ! else t += ((long) 1) << bits; continue; } if (yourtm.tm_isdst < 0 || mytm.tm_isdst == yourtm.tm_isdst) --- 1515,1565 ---- yourtm.tm_sec = 0; } /* ! ** Do a binary search (this works whatever time_t's type is). */ ! if (!TYPE_SIGNED(time_t)) { ! lo = 0; ! hi = lo - 1; ! } else if (!TYPE_INTEGRAL(time_t)) { ! if (sizeof(time_t) > sizeof(float)) ! hi = (time_t) FLT_MAX; ! else hi = (time_t) DBL_MAX; ! lo = -hi; ! } else { ! register int i; ! ! lo = 1; ! for (i = 0; i < TYPE_BIT(time_t) - 1; ++i) ! lo *= 2; ! hi = -(lo + 1); ! } for ( ; ; ) { ! t = lo / 2 + hi / 2; ! if (t < lo) ! t = lo; ! else if (t > hi) ! t = hi; ! if ((*funcp)(&t, offset, &mytm) == NULL) { ! /* ! ** Assume that t is too extreme to be represented in ! ** a struct tm; arrange things so that it is less ! ** extreme on the next pass. ! */ ! dir = (t > 0) ? 1 : -1; ! } else dir = tmcomp(&mytm, &yourtm); if (dir != 0) { ! if (t == lo) { ! ++t; ! ++lo; ! } else if (t == hi) { ! --t; ! --hi; ! } ! if (lo > hi) return WRONG; ! if (dir > 0) ! hi = t; ! else lo = t; continue; } if (yourtm.tm_isdst < 0 || mytm.tm_isdst == yourtm.tm_isdst) *************** *** 1569,1575 **** newt = t + sp->ttis[j].tt_gmtoff - sp->ttis[i].tt_gmtoff; if ((*funcp)(&newt, offset, &mytm) == NULL) ! return WRONG; /* XXX probably wrong */ if (tmcomp(&mytm, &yourtm) != 0) continue; if (mytm.tm_isdst != yourtm.tm_isdst) --- 1589,1595 ---- newt = t + sp->ttis[j].tt_gmtoff - sp->ttis[i].tt_gmtoff; if ((*funcp)(&newt, offset, &mytm) == NULL) ! continue; if (tmcomp(&mytm, &yourtm) != 0) continue; if (mytm.tm_isdst != yourtm.tm_isdst) ------- zdump.c ------- *** /tmp/geta3196 Tue Jan 11 11:57:58 2005 --- /tmp/getb3196 Tue Jan 11 11:57:58 2005 *************** *** 1,4 **** ! static char elsieid[] = "@(#)zdump.c 7.59"; /* ** This code has been made independent of the rest of the time --- 1,4 ---- ! static char elsieid[] = "@(#)zdump.c 7.60"; /* ** This code has been made independent of the rest of the time *************** *** 154,159 **** --- 154,195 ---- static const char * tformat P((void)); static time_t yeartot P((long y)); + #ifndef TYPECHECK + #define my_localtime localtime + #else /* !defined TYPECHECK */ + static struct tm * + my_localtime(tp) + time_t * tp; + { + register struct tm * tmp; + + tmp = localtime(tp); + if (tp != NULL && tmp != NULL) { + struct tm tm; + register time_t t; + + tm = *tmp; + t = mktime(&tm); + if (t - *tp >= 1 || *tp - t >= 1) { + (void) fflush(stdout); + (void) fprintf(stderr, "\n%s: ", progname); + (void) fprintf(stderr, tformat(), *tp); + (void) fprintf(stderr, " ->"); + (void) fprintf(stderr, " sec %d", tmp->tm_sec); + (void) fprintf(stderr, " min %d", tmp->tm_min); + (void) fprintf(stderr, " hour %d", tmp->tm_hour); + (void) fprintf(stderr, " mday %d", tmp->tm_mday); + (void) fprintf(stderr, " mon %d", tmp->tm_mon); + (void) fprintf(stderr, " year %d", tmp->tm_year); + (void) fprintf(stderr, " -> "); + (void) fprintf(stderr, tformat(), t); + (void) fprintf(stderr, "\n"); + } + } + return tmp; + } + #endif /* !defined TYPECHECK */ + int main(argc, argv) int argc; *************** *** 266,272 **** show(argv[i], t, TRUE); if (t < cutlotime) t = cutlotime; ! tmp = localtime(&t); if (tmp != NULL) { tm = *tmp; (void) strncpy(buf, abbr(&tm), (sizeof buf) - 1); --- 302,308 ---- show(argv[i], t, TRUE); if (t < cutlotime) t = cutlotime; ! tmp = my_localtime(&t); if (tmp != NULL) { tm = *tmp; (void) strncpy(buf, abbr(&tm), (sizeof buf) - 1); *************** *** 399,405 **** register struct tm * tmp; char loab[MAX_STRING_LENGTH]; ! lotmp = localtime(&lot); if (lotmp != NULL) { lotm = *lotmp; (void) strncpy(loab, abbr(&lotm), (sizeof loab) - 1); --- 435,441 ---- register struct tm * tmp; char loab[MAX_STRING_LENGTH]; ! lotmp = my_localtime(&lot); if (lotmp != NULL) { lotm = *lotmp; (void) strncpy(loab, abbr(&lotm), (sizeof loab) - 1); *************** *** 414,420 **** ++t; else if (t >= hit) --t; ! tmp = localtime(&t); if (tmp != NULL) tm = *tmp; if ((lotmp == NULL || tmp == NULL) ? (lotmp == tmp) : --- 450,456 ---- ++t; else if (t >= hit) --t; ! tmp = my_localtime(&t); if (tmp != NULL) tm = *tmp; if ((lotmp == NULL || tmp == NULL) ? (lotmp == tmp) : *************** *** 477,483 **** } (void) printf(" = "); } ! tmp = localtime(&t); dumptime(tmp); if (tmp != NULL) { if (*abbr(tmp) != '\0') --- 513,519 ---- } (void) printf(" = "); } ! tmp = my_localtime(&t); dumptime(tmp); if (tmp != NULL) { if (*abbr(tmp) != '\0') ------- Makefile ------- *** /tmp/geta3221 Tue Jan 11 11:58:07 2005 --- /tmp/getb3221 Tue Jan 11 11:58:07 2005 *************** *** 1,4 **** ! # @(#)Makefile 7.102 # 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). --- 1,4 ---- ! # @(#)Makefile 7.103 # 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). *************** *** 396,404 **** typecheck: make clean ! for i in "long long" double unsigned; \ do \ ! make CFLAGS="-D_TIME_T \"-Dtime_t=$$i\"" ; \ ./zdump -v US/Eastern ; \ make clean ; \ done --- 396,404 ---- typecheck: make clean ! for i in "long long" unsigned double; \ do \ ! make CFLAGS="-DTYPECHECK -D_TIME_T \"-Dtime_t=$$i\"" ; \ ./zdump -v US/Eastern ; \ make clean ; \ done

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Tzcode2005b.tar.gz and tzdata2005b.tar.gz
by Olson, Arthur David (NIH/NCI) Jan. 10, 2005

Jan. 10, 2005

The files... ftp://elsie.nci.nih.gov/pub/tzcode2005b.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2005b.tar.gz ...are now available; these reflect the changes circulated on the time zone mailing list last week to get localtime and gmtime working on systems with exotic time_t types and to update the leap second commentary in the "leapseconds" file. --ado

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question about asia/baku 1992
by Klaus Schmid Jan. 9, 2005

Jan. 9, 2005

Dear List, I have a question about the following data lines # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 - # i.e. Sep 26 Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:00 1:00 BAKST 1991 Aug 30 # independence 3:00 RussiaAsia AZ%sT 1992 Sep lastSun 2:00s # i.e. Sep 27 4:00 - AZT 1996 # Azerbaijan time Now if I try to interprete these lines I get: from 1992 Mar to 1992 Sep 26 23:00 (local): GMTOFF= 3:00 and SAVE= 1:00 i.e. LOCALOFF= +4:00 ==> 1992 Sep 26 23:00 (local) == 1992 Sep 26 19:00 zulu from 1992 Sep 26 19:00 zulu to 1992 Sep 26 23:00 zulu: GMTOFF= LOCALOFF= +3:00 from 1992 Sep 26 23:00 zulu to 1996: GMTOFF= LOCALOFF= +4:00 This would mean a local offset change ocurred for only four hours. Is this correct? Best Regards, Klaus Schmid

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Paraguay timezone rules
by Jesper Norgaard Welen Jan. 5, 2005

Jan. 5, 2005

There are several sources that claim that Paraguay made a timezone rule change in autumn 2004, which not only changed the date that Paraguay entered DST in 2004 but will also affect DST dates in 2005. Steffen Thorsen on http://www.timeanddate.com claimed that Paraguay entered DST in autumn 2004 Sunday the 17.th. of October and not Sunday 5.th. of September as would have been predicted by the TZ database. Now in 2005 it claims that Paraguay will enter DST Sunday the 16.th. of October 2005 and not Sunday 4.th. of September as it would be according to the TZ database. I tried to verify this with some internet searches, but could only find one source that interestingly is updating the TZ rules in a local version. The source is http://avi.alkalay.net/linux/zoneinfo/Paraguay.txt and it claims the following rule for Paraguay: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Paraguay 2002 2003 - Apr Sun<=7 0:00 0 S Rule Paraguay 2002 2003 - Sep Sun<=7 0:00 1 D Rule Paraguay 2004 only - Apr Sun<=7 0:00 0 S Rule Paraguay 2004 max - Oct Sun>=15 0:00 1 D Rule Paraguay 2005 max - Mar Sun>=8 0:00 0 S The rule for "2004 to max" about when Paraguay enters DST, is consistent with Steffen Thorsens dates for 2004 and 2005. However, it also claims that Paraguay leaves DST at different dates now in 2005, at Second Sunday of March instead of First Sunday of April. If this is true, even Steffen will have to change his database. I wonder if any of the members of the TZ mailing list can confirm these facts. A quote from the exact text of the timezone decrees corresponding would be the best, of course. Regards, Jesper Nørgaard Welen Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Project Leader (Líder de Proyecto) Software CIMMYT - Centro Internacional de Mejoramiento de Maíz y Trigo Dirección: CIMMYT Int. c/o Jesper Nørgaard Km. 45, Carretera México-Veracruz El Batán Texcoco, Edo. de México CP 56130 MEXICO Tel.: +52 (5) 58-04-20-04 ext. 1374 Fax: +52 (5) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 Download the free program World Time Explorer, I made: http://www.cimmyt.org/timezone/index.htm

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Question on id stability
by Mark Davis Jan. 4, 2005

Jan. 4, 2005

I have a couple of questions that I hope someone can give guidance on. These are sparked by the change from IDs like "America/Catamarca" to "America/Argentina/Catamarca" In CLDR (http://unicode.org/cldr/) we are using the IDs to access different localized names for the time zones. Each time a zone ID changes, we have the choice of either updating all the localized files that use that ID, or leaving them be and using the old ID. To make our maintenance easier (and make it easier for implementations), I'm inclined to recommend that we maintain stability as of a given date; that we never change an ID after that point. 1. Would there be any downside to such a policy? 2. I was not able to find documentation as to whether there is a policy disallowing 'retired' IDs to be reused later for a different timezone. Some might think that it is so obviously a bad policy to reuse IDs that it doesn't need stating, but ISO has reused country codes, for example, causing no end of problems for stability. 3. What was the reason for the change for Argentina? Is this a one-off aberration, or can we expect America/Chicago to change to America/United States/Chicago, America/Vancouver to change to America/Canada/Vancouver, and so on down the line? 4. Are links expected to be definitional and stable? That is, if I ever have two IDs that are related by a link: Link A B Can it ever be the case in the future that the IDs A and B are "unlinked", and given different rules? Or is it that links in certain files are stable? 5. A side note: when examining the links, and assuming that they are of the form Link <new> <old> there are a small number of links that are "not final", meaning that what they link to, itself links to something else. While not formally an issue, it might be more convenient (and transparent) if these were put in a 'canonical' form. 13 America/Rosario => America/Cordoba # NOT FINAL => America/Argentina/Cordoba 39 Brazil/Acre => America/Porto_Acre # NOT FINAL => America/Rio_Branco 79 GMT+0 => Etc/GMT+0 # NOT FINAL => Etc/GMT 80 GMT-0 => Etc/GMT-0 # NOT FINAL => Etc/GMT 81 GMT0 => Etc/GMT0 # NOT FINAL => Etc/GMT 82 Greenwich => Etc/Greenwich # NOT FINAL => Etc/GMT 99 Navajo => America/Shiprock # NOT FINAL => America/Denver 137 Universal => Etc/Universal # NOT FINAL => Etc/UTC 139 Zulu => Etc/Zulu # NOT FINAL => Etc/UTC ‎Mark

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ISO-8601 3.25 Second, Leap Applications requiring leap seconds
by HJWOUDENBERG＠aol.com Jan. 4, 2005

Jan. 4, 2005

Applications * astrometry * geophysics * orbitography * positionning IREP _http://hpiers.obspm.fr/eop-pc/_ (http://hpiers.obspm.fr/eop-pc/) Has anyone used them in a commercial application? I think I have an efficent method to include leap seconds however, but don't plan to program it until I know there is a need.. Anyone have ideas on how to notfiy the software to include or exclude leap seconds? Solution for including leaps seconds: Convert the year to binary value. If the months are the first quarter of the year mutiply by 4. If the months are the second quarter of the year Multiply by 4 and add 1. If the third quarter Multiply by 4 and add 2 If the fourth quarter Multiply by 4 and add 3 Us the binary result as an index into a table. Each postion of the table contains the cumulative binary leap seconds. Add the cumulative leap seconds to the seconds in the date. For every year the table will have four entrys per year. for 03-31, 06:30, 09-30 12-31 One bytes allows 256 cumulative seconds.

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