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Proposal for an Eighth European Parliament and Council Directive on Summer-Time Arrangements
by peter＠aldie.co.uk May 30, 1996

May 30, 1996

The long march towards the next, eighth, EU summer time directive has begun. The last directive told the Commission to produce proposals for the next directive by 1 Jan 96. These people have no concept of deadlines so they finally got around to it on 25 April. It proposes no change to the current rules of last Sunday in March to last Sunday in October, always at 01:00 GMT. It proposes that the directive should run for four years and gives dates as follows: year start end 1998 29 Mar 25 Oct 1999 28 Mar 31 Oct 2000 26 Mar 29 Oct 2001 25 Mar 28 Oct It says that having it run for four years is important to the transport industry, etc. This wording appeared in the proposal for the seventh directive but that was eventually knocked back to only three years. This one may go the same way. It says, as did the 7th directive, that these dates/times don't apply to overseas territories of the Member States. The document reference is COM(96) 106 final. Attached to the proposal is a report from the Commission on the application of summer time in the EU which is interesting from a UK perspective. It seems to be enthusiastically in favour of what it lists as `option 2': the moving of the UK into the central European timezone. The effect is slightly spolied by prominent notes at the start and end to the effect that the timezone that Member States inhabit is nothing whatever to do with the Commission. The UK government still hasn't formally decided what to do about this issue. I am sure they just wish it would go away so they never have to decide. With Portugal having rejoined the UK and Eire in the GMT zone I still can't see the UK changing. Peter Ilieve peter(a)aldie.co.uk

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zic mishandles `u'-format UNTIL (+ patch)
by Paul Eggert May 29, 1996

May 29, 1996

While preparing some proposed patches to historical data for Belfast, Dublin, and London, I noticed that zic miscompiles the latest tz data's March 1996 transition for Europe/Lisbon. Here's the line that is miscompiled: # Zone NAME GMTOFF RULES FORMAT [UNTIL] 1:00 EU MET%s 1996 Mar 31 1:00u Here is the zdump output: Europe/Lisbon Sat Mar 30 23:59:59 1996 GMT = Sun Mar 31 00:59:59 1996 MET isdst=0 Europe/Lisbon Sun Mar 31 00:00:00 1996 GMT = Sun Mar 31 01:00:00 1996 WET DST isdst=1 The transition should occur at 01:00 UTC, not 00:00 UTC. Here is a proposed patch. =================================================================== RCS file: RCS/zic.c,v retrieving revision 1996.8 retrieving revision 1996.8.1.1 diff -c -r1996.8 -r1996.8.1.1 *** zic.c 1996/05/16 18:00:12 1996.8 --- zic.c 1996/05/29 21:29:04 1996.8.1.1 *************** *** 1694,1704 **** ** Now we may get to set starttime for the next zone line. */ if (useuntil) { - starttime = tadd(zp->z_untiltime, -gmtoff); startttisstd = zp->z_untilrule.r_todisstd; startttisgmt = zp->z_untilrule.r_todisgmt; if (!startttisstd) starttime = tadd(starttime, -stdoff); } } writezone(zpfirst->z_name); --- 1694,1706 ---- ** Now we may get to set starttime for the next zone line. */ if (useuntil) { startttisstd = zp->z_untilrule.r_todisstd; startttisgmt = zp->z_untilrule.r_todisgmt; + starttime = zp->z_untiltime; if (!startttisstd) starttime = tadd(starttime, -stdoff); + if (!startttisgmt) + starttime = tadd(starttime, -gmtoff); } } writezone(zpfirst->z_name);

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tzcode96g.tar.gz
by ado May 16, 1996

May 16, 1996

The file tzcode96g.tar.gz is now available by anonymous ftp from elsie.nci.nih.gov (165.112.73.1) in the ~ftp/pub directory: -rw-r--r-- 1 ado 74838 May 16 14:00 tzcode96g.tar.gz This incorporates the fix for the simultaneous-DST-and-zone-change challenge. --ado

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Simultaneous zone and DST changes
by ado May 15, 1996

May 15, 1996

The basic challenge with places such as Stanley (where a time-zone shift and a DST change were done at the same instant in 1985, resulting in no change of wall clock time) is that there's an hour when such a place is neither fish nor fowl. Here's a table summarizing what's happening on September 14/15 1995 in five different circumstances; each row of the table gives data for a particular instant in time. The circumstances: 1. What's happening in places that run on GMT 2. What's happening in (hypothetical) places that always run on EST/EDT using Falkland rules 3. What's happening in (hypothetical) places that always run on AST/ADT using Falkland rules 4. What zdump tells us is currently produced by zic for Stanley 5. And what we (presumably) really want for Stanley. =============================================================================== GMT-------|Always-ExT-----|Always-AxT-----|Stanley (now)--|Stanley (wanted) 15 2:59:59|14 23:59:59 EST|14 22:59:59 AST|14 23:59:59 EST|14 23:59:59 EST 15 3:00:00|15 01:00:00 EDT|14 23:00:00 AST|14 23:00:00 AST|15 00:00:00 ADT/EST 15 3:59:59|15 01:59:59 EDT|14 23:59:59 AST|14 23:59:59 AST|15 00:59:59 ADT/EST 15 4:00:00|15 02:00:00 EDT|15 01:00:00 ADT|15 01:00:00 ADT|15 01:00:00 ADT =============================================================================== The "Stanley (wanted)" stuff matches neither the "Always ExT" stuff nor the "Always AxT" stuff (regardless of whether you pick ADT or EST for Stanley to use as a time zone abbreviation during the strange hour). Among the ways to get from "Stanley (now)" to "Stanley (wanted)": 1. Hard code the transition hour--that is, where there are now lines that read... Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:51 - SMT 1912 Mar 12 -4:00 Falk A%sT 1983 May -3:00 Falk E%sT 1985 Sep 15 -4:00 Falk A%sT ...add a line to cover the hour in 1985... Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:51 - SMT 1912 Mar 12 -4:00 Falk A%sT 1983 May -3:00 Falk E%sT 1985 Sep 15 -3:00 - EST 1985 Sep 15 1:00 # <<<< -4:00 Falk A%sT 2. Set up zic to notice situations such as the above and "do the right thing." This would involve a code change something like this (with the "horrid special case" check perhaps made more strict): =============================================================================== SCCS/s.zic.c: 7.74 vs. 7.75 *** 7.74/zic.c Tue May 14 14:25:04 1996 --- 7.75/zic.c Tue May 14 14:25:06 1996 *************** *** 1,6 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)zic.c 7.74"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 1,6 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)zic.c 7.75"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 1397,1406 **** if (isdsts[0] == 0) while (attypes[fromi].type == 0) ++fromi; /* handled by default rule */ ! for ( ; fromi < timecnt; ++fromi) if (toi == 0 || attypes[toi - 1].type != attypes[fromi].type) attypes[toi++] = attypes[fromi]; timecnt = toi; } /* --- 1397,1414 ---- if (isdsts[0] == 0) while (attypes[fromi].type == 0) ++fromi; /* handled by default rule */ ! for ( ; fromi < timecnt; ++fromi) { ! /* ! ** Horrid special case. ! */ ! if ((fromi + 1) < timecnt && ! attypes[fromi + 1].at - attypes[fromi].at == ! SECSPERHOUR) ! continue; if (toi == 0 || attypes[toi - 1].type != attypes[fromi].type) attypes[toi++] = attypes[fromi]; + } timecnt = toi; } /* =============================================================================== I lean toward the second approach; are there any better ideas out there? --ado

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tzdata96h.tar.gz
by ado May 9, 1996

May 9, 1996

The file tzdata96h.tar.gz is now available by anonymous ftp from elsie.nci.nih.gov (165.112.73.1) in the ~ftp/pub directory: -rw-r--r-- 1 ado 74236 May 9 17:44 tzdata96h.tar.gz This incorporates the changes that Paul Eggert circulated on the time zone mailing list in the last week. --ado

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proposed tz changes for Armenia, Italy, Krasnoyarsk v Tomsk, `EU' name
by Paul Eggert May 6, 1996

May 6, 1996

Here are some more proposed changes to the tz database. * Change `Kabul' ruleset to `RussiaAsia' and `Gaza' ruleset to `EgyptAsia'. This is partly for consistency in naming, partly to avoid errors when running `zic asia' by itself, since `asia' currently uses `Russia' without defining it. * <edd(a)AIC.NET> reports that Armenia stopped using DST this year, and he also requested a different time zone name. * Rename `EC' to `EU'. This was suggested by Peter Ilieve. * Adjust DST rules for Europe/Rome (and for M-Eur) in the light of a new table for Italian DST published by F. Pollastri. This affects some transitions between 1916 and 1945 inclusive. * Rename Asia/Tomsk to Asia/Krasnoyarsk, since the latter is a much larger representative for that zone. =================================================================== RCS file: RCS/asia,v retrieving revision 1996.7 retrieving revision 1996.7.1.1 diff -c -r1996.7 -r1996.7.1.1 *** asia 1996/05/03 02:49:56 1996.7 --- asia 1996/05/06 08:15:25 1996.7.1.1 *************** *** 30,37 **** # 3:00 AST ADT Arabia* # 3:00 BSK BSD Baku (was 4:00)* # 3:30 IST IDT Iran # 4:00 TBSK TBSD Tbilisi (was 3:00)* - # 4:00 YSK YSD Yerevan (was 3:00)* # 4:00 GST GDT Gulf* # 4:30 AFT Afghanistan* # 5:00 ASK ASD Aktau (was SHSK, SHSD)* --- 30,37 ---- # 3:00 AST ADT Arabia* # 3:00 BSK BSD Baku (was 4:00)* # 3:30 IST IDT Iran + # 4:00 AMST AMDT Armenia (was 3:00) (was YSK, YSD)* # 4:00 TBSK TBSD Tbilisi (was 3:00)* # 4:00 GST GDT Gulf* # 4:30 AFT Afghanistan* # 5:00 ASK ASD Aktau (was SHSK, SHSD)* *************** *** 70,80 **** ############################################################################### # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule Kabul 1981 1984 - Apr 1 0:00 1:00 D ! Rule Kabul 1981 1983 - Oct 1 0:00 0 K ! Rule Kabul 1984 max - Sep lastSun 2:00s 0 K ! Rule Kabul 1985 max - Mar lastSun 2:00s 1:00 D # Afghanistan # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 70,81 ---- ############################################################################### + # These rules for Russia are stolen from the `europe' file. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 D ! Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 K ! Rule RussiaAsia 1984 max - Sep lastSun 2:00s 0 K ! Rule RussiaAsia 1985 max - Mar lastSun 2:00s 1:00 D # Afghanistan # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 83,105 **** 4:30 - AFT # Armenia ! # From Paul Eggert (1996-04-19): # Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991, ! # but usno1995 has Armenia at 4:00 (with DST). Assume Yerevan stayed in ! # sync with Moscow after 1990. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 3:00 - YSK 1957 Mar ! 4:00 Russia YS%s 1991 Mar 31 2:00s 3:00 1:00 YSD 1991 Sep 29 2:00s ! 3:00 - YSK 1992 Jan 19 2:00s ! 4:00 Russia YS%s # Azerbaijan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:19:24 - LMT 1924 May 2 3:00 - BSK 1957 Mar ! 4:00 Russia BS%s 1991 Mar 31 2:00s 3:00 1:00 BSD 1991 Sep 29 2:00s 3:00 - BSK # Shanks has Baku using Russian DST rules after 1991, --- 84,115 ---- 4:30 - AFT # Armenia ! # From Paul Eggert (1996-05-04): # Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991, ! # but usno1995 has Armenia at 4:00 (with DST), and Edgar Der-Danieliantz ! # <edd(a)AIC.NET> reported today that Yerevan probably won't use DST this year, ! # though it did use DST in 1995. We guess Yerevan stayed in sync with Moscow ! # between 1990 and 1995, but stopped using DST in 1996. ! # Der-Danieliantz also asked for a better abbreviation than `YSK' ! # after independence. Apparently no abbreviation is in common use; ! # use `AMST/AMDT' since `AM' is the ISO country code for Armenia. ! # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule Armenia 1992 1995 - Sep lastSun 2:00s 0 S ! Rule Armenia 1992 1995 - Mar lastSun 2:00s 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 3:00 - YSK 1957 Mar ! 4:00 RussiaAsia YS%s 1991 Mar 31 2:00s 3:00 1:00 YSD 1991 Sep 29 2:00s ! 3:00 - AMST 1992 Jan 19 2:00s ! 4:00 Armenia AM%sT 1996 ! 4:00 - AMST # Azerbaijan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:19:24 - LMT 1924 May 2 3:00 - BSK 1957 Mar ! 4:00 RussiaAsia BS%s 1991 Mar 31 2:00s 3:00 1:00 BSD 1991 Sep 29 2:00s 3:00 - BSK # Shanks has Baku using Russian DST rules after 1991, *************** *** 308,316 **** Zone Asia/Tbilisi 2:59:16 - LMT 1880 2:59 - LST 1924 May 2 3:00 - TBSK 1957 Mar ! 4:00 Russia TBS%s 1991 Mar 31 2:00s 3:00 1:00 TBSD 1991 Sep 29 2:00s ! 3:00 Russia TBS%s 1994 Sep 25 2:00s 4:00 - TBSK # India --- 318,326 ---- Zone Asia/Tbilisi 2:59:16 - LMT 1880 2:59 - LST 1924 May 2 3:00 - TBSK 1957 Mar ! 4:00 RussiaAsia TBS%s 1991 Mar 31 2:00s 3:00 1:00 TBSD 1991 Sep 29 2:00s ! 3:00 RussiaAsia TBS%s 1994 Sep 25 2:00s 4:00 - TBSK # India *************** *** 581,604 **** # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Alma-Ata 5:07:48 - LMT 1924 May 2 # or Almaty 5:00 - AASK 1957 Mar ! 6:00 Russia AAS%s 1991 Mar 31 2:00s 5:00 1:00 AASD 1991 Sep 29 2:00s 5:00 - AASK 1992 Jan 19 2:00s ! 6:00 Russia AAS%s Zone Asia/Aktau 3:21:04 - LMT 1924 May 2 # or Aqtau 4:00 - SHSK 1957 Mar # Fort Shevchenko ! 5:00 Russia SHS%s 1991 Mar 31 2:00s 4:00 1:00 ASD 1991 Sep 29 2:00s 4:00 - ASK 1992 Jan 19 2:00s ! 5:00 Russia AS%s # Kirgizstan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 5:00 - FSK 1957 Mar # Frunze ! 6:00 Russia FS%s 1991 Mar 31 2:00s 5:00 1:00 FSD 1991 Sep 29 2:00s ! 5:00 Russia BS%s ############################################################################### --- 591,614 ---- # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Alma-Ata 5:07:48 - LMT 1924 May 2 # or Almaty 5:00 - AASK 1957 Mar ! 6:00 RussiaAsia AAS%s 1991 Mar 31 2:00s 5:00 1:00 AASD 1991 Sep 29 2:00s 5:00 - AASK 1992 Jan 19 2:00s ! 6:00 RussiaAsia AAS%s Zone Asia/Aktau 3:21:04 - LMT 1924 May 2 # or Aqtau 4:00 - SHSK 1957 Mar # Fort Shevchenko ! 5:00 RussiaAsia SHS%s 1991 Mar 31 2:00s 4:00 1:00 ASD 1991 Sep 29 2:00s 4:00 - ASK 1992 Jan 19 2:00s ! 5:00 RussiaAsia AS%s # Kirgizstan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 5:00 - FSK 1957 Mar # Frunze ! 6:00 RussiaAsia FS%s 1991 Mar 31 2:00s 5:00 1:00 FSD 1991 Sep 29 2:00s ! 5:00 RussiaAsia BS%s ############################################################################### *************** *** 735,750 **** # Palestine # These rules for Egypt are stolen from the `africa' file. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule Gaza 1957 only - May 10 0:00 1:00 " DST" ! Rule Gaza 1957 1958 - Oct 1 0:00 0 - ! Rule Gaza 1958 only - May 1 0:00 1:00 " DST" ! Rule Gaza 1959 1981 - May 1 1:00 1:00 " DST" ! Rule Gaza 1959 1965 - Sep 30 3:00 0 - ! Rule Gaza 1966 max - Oct 1 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Gaza 2:17:52 - LMT 1900 Oct 2:00 - EET 1957 May 10 ! 2:00 Gaza EET%s 1967 Jun 30 2:00 Zion I%sT # This will undoubtedly change soon. --- 745,760 ---- # Palestine # These rules for Egypt are stolen from the `africa' file. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule EgyptAsia 1957 only - May 10 0:00 1:00 " DST" ! Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 - ! Rule EgyptAsia 1958 only - May 1 0:00 1:00 " DST" ! Rule EgyptAsia 1959 1981 - May 1 1:00 1:00 " DST" ! Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 - ! Rule EgyptAsia 1966 max - Oct 1 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Gaza 2:17:52 - LMT 1900 Oct 2:00 - EET 1957 May 10 ! 2:00 EgyptAsia EET%s 1967 Jun 30 2:00 Zion I%sT # This will undoubtedly change soon. *************** *** 835,841 **** # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 5:00 - DSK 1957 Mar ! 6:00 Russia DS%s 1991 6:00 - DSK # Shanks has Dushanbe at 5:00 (6:00 summer) after 1991 Sep 29 3:00, # but usno1995 has it at 6:00. Go with usno1995. --- 845,851 ---- # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 5:00 - DSK 1957 Mar ! 6:00 RussiaAsia DS%s 1991 6:00 - DSK # Shanks has Dushanbe at 5:00 (6:00 summer) after 1991 Sep 29 3:00, # but usno1995 has it at 6:00. Go with usno1995. *************** *** 850,856 **** # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Ashkhabad 3:53:32 - LMT 1924 May 2 4:00 - ASK 1957 Mar ! 5:00 Russia AS%s 1991 5:00 - ASK # Shanks has Ashkhabad at 4:00 (5:00 summer) after 1991 Sep 20 3:00, # but usno has it at 5:00. Go with usno1995. --- 860,866 ---- # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Ashkhabad 3:53:32 - LMT 1924 May 2 4:00 - ASK 1957 Mar ! 5:00 RussiaAsia AS%s 1991 5:00 - ASK # Shanks has Ashkhabad at 4:00 (5:00 summer) after 1991 Sep 20 3:00, # but usno has it at 5:00. Go with usno1995. *************** *** 864,870 **** # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2 5:00 - TSK 1957 Mar ! 6:00 Russia TS%s 1991 Mar 31 2:00s 5:00 1:00 TSD 1991 Sep 29 2:00s 5:00 - TSK # Shanks has Tashkent using DST after 1991, but usno1995 says they don't. --- 874,880 ---- # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2 5:00 - TSK 1957 Mar ! 6:00 RussiaAsia TS%s 1991 Mar 31 2:00s 5:00 1:00 TSD 1991 Sep 29 2:00s 5:00 - TSK # Shanks has Tashkent using DST after 1991, but usno1995 says they don't. =================================================================== RCS file: RCS/europe,v retrieving revision 1996.7.1.1 retrieving revision 1996.7.1.2 diff -c -r1996.7.1.1 -r1996.7.1.2 *** europe 1996/05/03 18:20:46 1996.7.1.1 --- europe 1996/05/06 08:03:14 1996.7.1.2 *************** *** 36,42 **** # 5:00 ESK ESD Yekaterinburg (was 4:00) (was SSK, SSD)* # 6:00 OSK OSD Omsk (was 5:00)* # 6:00 NSK NSD Novosibirsk (was 7:00) ! # 7:00 TSK TSD Tomsk (was 6:00)* # 8:00 ISK ISD Irkutsk (was 7:00)* # 9:00 YSK YSD Yakutsk (was 8:00)* # 10:00 VSK VSD Vladivostok (was 9:00)* --- 36,42 ---- # 5:00 ESK ESD Yekaterinburg (was 4:00) (was SSK, SSD)* # 6:00 OSK OSD Omsk (was 5:00)* # 6:00 NSK NSD Novosibirsk (was 7:00) ! # 7:00 KRSK KRSD Krasnoyarsk (was 6:00) # 8:00 ISK ISD Irkutsk (was 7:00)* # 9:00 YSK YSD Yakutsk (was 8:00)* # 10:00 VSK VSD Vladivostok (was 9:00)* *************** *** 600,605 **** --- 600,610 ---- # 1995-97 is now in place. The Summer Time Order 1994 (SI 1994/2798) # came into force on 16 November. It restates the dates from the EC # seventh Summer Time Directive.... + # + # From Peter Ilieve <peter(a)aldie.co.uk> (1996-04-20): + # Proposals for the eighth directive were supposed to have been produced + # by the Commission by 1 Jan 96. They have not yet appeared (I asked just + # before Easter). # From Peter Ilieve <peter(a)memex.co.uk> (March 28, 1994): # The [GB-Eire] end date of 22 October [1995] conflicts with your current rule *************** *** 715,735 **** Rule GB-Eire 1981 1995 - Mar lastSun 1:00u 1:00 BST Rule GB-Eire 1981 1989 - Oct Sun>=23 1:00u 0 GMT Rule GB-Eire 1990 1995 - Oct Sun>=22 1:00u 0 GMT ! # See EC for rules starting in 1996. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/London -0:01:15 - LMT 1847 Sep 22 0:00 GB-Eire %s 1968 Feb 18 2:00 1:00 - BST 1971 Oct 31 2:00 0:00 GB-Eire %s 1996 ! 0:00 EC GMT/BST Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2 -0:25:21 - DMT 1916 May 21 2:00 # Dublin MT -0:25:21 1:00 DST 1916 Oct 1 3:00 0:00 GB-Eire %s 1968 Feb 18 2:00 1:00 - BST 1971 Oct 31 3:00 0:00 GB-Eire %s 1996 ! 0:00 EC GMT/BST Zone Europe/Dublin -0:25:21 - LMT 1880 Aug 2 -0:25:21 - DMT 1916 May 21 2:00 # Dublin MT -0:25:21 1:00 DST 1916 Oct 1 3:00 --- 720,740 ---- Rule GB-Eire 1981 1995 - Mar lastSun 1:00u 1:00 BST Rule GB-Eire 1981 1989 - Oct Sun>=23 1:00u 0 GMT Rule GB-Eire 1990 1995 - Oct Sun>=22 1:00u 0 GMT ! # See EU for rules starting in 1996. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/London -0:01:15 - LMT 1847 Sep 22 0:00 GB-Eire %s 1968 Feb 18 2:00 1:00 - BST 1971 Oct 31 2:00 0:00 GB-Eire %s 1996 ! 0:00 EU GMT/BST Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2 -0:25:21 - DMT 1916 May 21 2:00 # Dublin MT -0:25:21 1:00 DST 1916 Oct 1 3:00 0:00 GB-Eire %s 1968 Feb 18 2:00 1:00 - BST 1971 Oct 31 3:00 0:00 GB-Eire %s 1996 ! 0:00 EU GMT/BST Zone Europe/Dublin -0:25:21 - LMT 1880 Aug 2 -0:25:21 - DMT 1916 May 21 2:00 # Dublin MT -0:25:21 1:00 DST 1916 Oct 1 3:00 *************** *** 741,763 **** 0:00 GB-Eire %s 1968 Feb 18 2:00 1:00 - BST 1971 Oct 31 3:00 0:00 GB-Eire %s 1996 ! 0:00 EC GMT/BST ############################################################################### # Continental Europe ! # EC rules are for the European Community. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule EC 1977 1980 - Apr Sun>=1 1:00u 1:00 " DST" ! Rule EC 1977 only - Sep lastSun 1:00u 0 - ! Rule EC 1978 only - Oct 1 1:00u 0 - ! Rule EC 1979 1995 - Sep lastSun 1:00u 0 - ! Rule EC 1981 max - Mar lastSun 1:00u 1:00 " DST" ! Rule EC 1996 max - Oct lastSun 1:00u 0 - ! # W-Eur differs from EC only in that W-Eur uses standard time. Rule W-Eur 1977 1980 - Apr Sun>=1 1:00s 1:00 " DST" Rule W-Eur 1977 only - Sep lastSun 1:00s 0 - Rule W-Eur 1978 only - Oct 1 1:00s 0 - --- 746,769 ---- 0:00 GB-Eire %s 1968 Feb 18 2:00 1:00 - BST 1971 Oct 31 3:00 0:00 GB-Eire %s 1996 ! 0:00 EU GMT/BST ############################################################################### # Continental Europe ! # EU rules are for the European Union, previously known as the EC, EEC, ! # Common Market, etc. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule EU 1977 1980 - Apr Sun>=1 1:00u 1:00 " DST" ! Rule EU 1977 only - Sep lastSun 1:00u 0 - ! Rule EU 1978 only - Oct 1 1:00u 0 - ! Rule EU 1979 1995 - Sep lastSun 1:00u 0 - ! Rule EU 1981 max - Mar lastSun 1:00u 1:00 " DST" ! Rule EU 1996 max - Oct lastSun 1:00u 0 - ! # W-Eur differs from EU only in that W-Eur uses standard time. Rule W-Eur 1977 1980 - Apr Sun>=1 1:00s 1:00 " DST" Rule W-Eur 1977 only - Sep lastSun 1:00s 0 - Rule W-Eur 1978 only - Oct 1 1:00s 0 - *************** *** 766,782 **** Rule W-Eur 1996 max - Oct lastSun 1:00s 0 - # Older M-Eur rules are for convenience in the tables. ! # From 1977 on, M-Eur differs from EC only in that M-Eur uses standard time. Rule M-Eur 1916 only - Apr 30 23:00 1:00 " DST" Rule M-Eur 1916 only - Oct 1 1:00 0 - Rule M-Eur 1917 1918 - Apr Mon>=15 2:00s 1:00 " DST" Rule M-Eur 1917 1918 - Sep Mon>=15 2:00s 0 - Rule M-Eur 1940 only - Apr 1 2:00s 1:00 " DST" ! # Shanks says DST was continuous from 1940 Apr 1 to 1942 Nov 2; go with Whitman. ! Rule M-Eur 1940 only - Dec 31 2:00s 0 - ! Rule M-Eur 1941 only - Feb 25 2:00s 1:00 " DST" ! Rule M-Eur 1941 only - Oct 5 2:00s 0 - ! Rule M-Eur 1942 only - Jan 1 2:00s 1:00 " DST" Rule M-Eur 1942 only - Nov 2 2:00s 0 - Rule M-Eur 1943 only - Mar 29 2:00s 1:00 " DST" Rule M-Eur 1943 only - Oct 4 2:00s 0 - --- 772,784 ---- Rule W-Eur 1996 max - Oct lastSun 1:00s 0 - # Older M-Eur rules are for convenience in the tables. ! # From 1977 on, M-Eur differs from EU only in that M-Eur uses standard time. Rule M-Eur 1916 only - Apr 30 23:00 1:00 " DST" Rule M-Eur 1916 only - Oct 1 1:00 0 - Rule M-Eur 1917 1918 - Apr Mon>=15 2:00s 1:00 " DST" Rule M-Eur 1917 1918 - Sep Mon>=15 2:00s 0 - Rule M-Eur 1940 only - Apr 1 2:00s 1:00 " DST" ! # Whitman says 1941 DST was only from Feb 25 to Oct 5; go with Shanks. Rule M-Eur 1942 only - Nov 2 2:00s 0 - Rule M-Eur 1943 only - Mar 29 2:00s 1:00 " DST" Rule M-Eur 1943 only - Oct 4 2:00s 0 - *************** *** 813,821 **** # These are for backward compatibility with older versions. # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone WET 0:00 EC WET%s Zone MET 1:00 M-Eur MET%s ! Zone EET 2:00 EC EET%s # Tom Hoffman says that MET is also known as Central European Time --- 815,823 ---- # These are for backward compatibility with older versions. # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone WET 0:00 EU WET%s Zone MET 1:00 M-Eur MET%s ! Zone EET 2:00 EU EET%s # Tom Hoffman says that MET is also known as Central European Time *************** *** 854,867 **** 1:00 - MET 1940 Jun 16 1:00 Albania MET%s 1985 Mar 31 1:00 1:00 W-Eur MET%s ! # This may change to `EC' soon. # Andorra # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Andorra 0:06:04 - LMT 1901 0:00 - WET 1946 Sep 30 1:00 - MET 1985 Mar 31 2:00 ! 1:00 EC MET%s # Austria # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 856,869 ---- 1:00 - MET 1940 Jun 16 1:00 Albania MET%s 1985 Mar 31 1:00 1:00 W-Eur MET%s ! # This may change to `EU' soon. # Andorra # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Andorra 0:06:04 - LMT 1901 0:00 - WET 1946 Sep 30 1:00 - MET 1985 Mar 31 2:00 ! 1:00 EU MET%s # Austria # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 879,885 **** 1:00 Austria MET%s 1940 Apr 1 2:00 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Austria MET%s 1981 ! 1:00 EC MET%s # Belarus # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 881,887 ---- 1:00 Austria MET%s 1940 Apr 1 2:00 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Austria MET%s 1981 ! 1:00 EU MET%s # Belarus # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 890,896 **** 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EC' soon. # Belgium # Whitman and Shanks disagree; go with Shanks, usually. --- 892,898 ---- 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EU' soon. # Belgium # Whitman and Shanks disagree; go with Shanks, usually. *************** *** 938,944 **** 0:00 Belgium WET%s 1940 Feb 24 23:00 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Belgium MET%s 1977 ! 1:00 EC MET%s # Bosnia and Herzegovina # They switched from the Julian to the Gregorian calendar on 1918 Mar 18. --- 940,946 ---- 0:00 Belgium WET%s 1940 Feb 24 23:00 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Belgium MET%s 1977 ! 1:00 EU MET%s # Bosnia and Herzegovina # They switched from the Julian to the Gregorian calendar on 1918 Mar 18. *************** *** 948,954 **** 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EC MET%s # Bulgaria # Part switched from the Julian to the Gregorian calendar on 1915 Nov 14; --- 950,956 ---- 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EU MET%s # Bulgaria # Part switched from the Julian to the Gregorian calendar on 1915 Nov 14; *************** *** 967,973 **** 2:00 - EET 1979 Mar 31 23:00 2:00 Bulg EET%s 1982 Sep 26 2:00 2:00 M-Eur EET%s ! # This may change to `EC' soon. # Croatia # They switched from the Julian to the Gregorian calendar on 1918 Mar 18. --- 969,975 ---- 2:00 - EET 1979 Mar 31 23:00 2:00 Bulg EET%s 1982 Sep 26 2:00 2:00 M-Eur EET%s ! # This may change to `EU' soon. # Croatia # They switched from the Julian to the Gregorian calendar on 1918 Mar 18. *************** *** 977,983 **** 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EC MET%s # Czech Republic # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 979,985 ---- 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EU MET%s # Czech Republic # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 993,999 **** 0:58 - PMT 1891 Oct # Prague Mean Time 1:00 M-Eur MET%s 1944 Sep 17 2:00s 1:00 Czech MET%s 1979 ! 1:00 EC MET%s # Denmark # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 995,1001 ---- 0:58 - PMT 1891 Oct # Prague Mean Time 1:00 M-Eur MET%s 1944 Sep 17 2:00s 1:00 Czech MET%s 1979 ! 1:00 EU MET%s # Denmark # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 1018,1027 **** 1:00 Denmark MET%s 1942 Nov 2 2:00s 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Denmark MET%s 1980 ! 1:00 EC MET%s Zone Atlantic/Faeroe -0:27:04 - LMT 1908 Jan 11 # Torshavn 0:00 - WET 1981 ! 0:00 EC WET%s Zone America/Scoresbysund -1:29:00 - LMT 1916 Jul 28 -2:00 - MGT 1980 Apr 6 2:00 -2:00 M-Eur MGT%s 1981 Mar 29 --- 1020,1029 ---- 1:00 Denmark MET%s 1942 Nov 2 2:00s 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Denmark MET%s 1980 ! 1:00 EU MET%s Zone Atlantic/Faeroe -0:27:04 - LMT 1908 Jan 11 # Torshavn 0:00 - WET 1981 ! 0:00 EU WET%s Zone America/Scoresbysund -1:29:00 - LMT 1916 Jul 28 -2:00 - MGT 1980 Apr 6 2:00 -2:00 M-Eur MGT%s 1981 Mar 29 *************** *** 1050,1056 **** 3:00 Russia MS%s 1989 Mar 26 2:00s 2:00 1:00 "EET DST" 1989 Sep 24 2:00s 2:00 M-Eur EET%s ! # This may change to `EC' soon. # Finland # --- 1052,1058 ---- 3:00 Russia MS%s 1989 Mar 26 2:00s 2:00 1:00 "EET DST" 1989 Sep 24 2:00s 2:00 M-Eur EET%s ! # This may change to `EU' soon. # Finland # *************** *** 1069,1075 **** Zone Europe/Helsinki 1:39:52 - LMT 1878 May 31 1:40 - HMT 1921 May # Helsinki Mean Time 2:00 Finland EET%s 1981 Mar 29 2:00 ! 2:00 EC EET%s # France # Shanks seems to use `24:00' ambiguously; we resolve it with Whitman. --- 1071,1077 ---- Zone Europe/Helsinki 1:39:52 - LMT 1878 May 31 1:40 - HMT 1921 May # Helsinki Mean Time 2:00 Finland EET%s 1981 Mar 29 2:00 ! 2:00 EU EET%s # France # Shanks seems to use `24:00' ambiguously; we resolve it with Whitman. *************** *** 1130,1136 **** 1:00 M-Eur MET%s 1944 Aug 25 0:00 France WET%s 1945 Sep 16 3:00 1:00 France MET%s 1977 ! 1:00 EC MET%s # Germany # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 1132,1138 ---- 1:00 M-Eur MET%s 1944 Aug 25 0:00 France WET%s 1945 Sep 16 3:00 1:00 France MET%s 1977 ! 1:00 EU MET%s # Germany # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 1150,1163 **** Zone Europe/Berlin 0:53:28 - LMT 1893 Apr 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Germany MET%s 1980 ! 1:00 EC MET%s # Gibraltar # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Gibraltar -0:21:24 - LMT 1880 Aug 2 0:00 GB-Eire %s 1957 Apr 14 2:00 1:00 - MET 1982 ! 1:00 EC MET%s # Greece # They adopted the Julian calendar in 1846. --- 1152,1165 ---- Zone Europe/Berlin 0:53:28 - LMT 1893 Apr 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Germany MET%s 1980 ! 1:00 EU MET%s # Gibraltar # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Gibraltar -0:21:24 - LMT 1880 Aug 2 0:00 GB-Eire %s 1957 Apr 14 2:00 1:00 - MET 1982 ! 1:00 EU MET%s # Greece # They adopted the Julian calendar in 1846. *************** *** 1194,1201 **** 1:00 Greece MET%s 1944 Apr 4 2:00 Greece EET%s 1981 # Shanks says they switched to M-Eur in 1981; ! # go with EC intead, since Greece joined it on Jan 1. ! 2:00 EC EET%s # Hungary # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 1196,1203 ---- 1:00 Greece MET%s 1944 Apr 4 2:00 Greece EET%s 1981 # Shanks says they switched to M-Eur in 1981; ! # go with EU intead, since Greece joined it on Jan 1. ! 2:00 EU EET%s # Hungary # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 1225,1231 **** 1:00 Hungary MET%s 1941 Apr 6 2:00 1:00 M-Eur MET%s 1945 May 1 23:00 1:00 Hungary MET%s 1980 Sep 28 2:00s ! 1:00 EC MET%s # Iceland # --- 1227,1233 ---- 1:00 Hungary MET%s 1941 Apr 6 2:00 1:00 M-Eur MET%s 1945 May 1 23:00 1:00 Hungary MET%s 1980 Sep 28 2:00s ! 1:00 EU MET%s # Iceland # *************** *** 1290,1310 **** 0:00 - GMT # Italy # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S - # Shanks gives transition times of 1916-1920 as 24:00; go with Whitman. Rule Italy 1916 only - Jun 3 0:00s 1:00 " DST" ! Rule Italy 1916 only - Sep 30 0:00s 0 - ! Rule Italy 1917 only - Mar 31 0:00s 1:00 " DST" Rule Italy 1917 only - Sep 30 0:00s 0 - ! Rule Italy 1918 only - Mar 9 0:00s 1:00 " DST" Rule Italy 1918 1919 - Oct Sun>=1 0:00s 0 - ! Rule Italy 1919 only - Mar 1 0:00s 1:00 " DST" ! Rule Italy 1920 only - Mar 20 0:00s 1:00 " DST" ! # Shanks gives 1920 Sep 18; go with Whitman. ! Rule Italy 1920 only - Oct 1 0:00s 0 - ! Rule Italy 1940 only - Jun 15 0:00 1:00 " DST" Rule Italy 1945 only - Apr 2 2:00 1:00 " DST" ! Rule Italy 1945 only - Sep 17 0:00 0 - Rule Italy 1946 only - Mar 17 2:00s 1:00 " DST" Rule Italy 1946 only - Oct 6 2:00s 0 - Rule Italy 1947 only - Mar 16 0:00s 1:00 " DST" --- 1292,1334 ---- 0:00 - GMT # Italy + # From Paul Eggert (1996-05-06): + # For Italian DST we have three sources: Shanks, Whitman, and F. Pollastri + # <http://pisolo.cstv.to.cnr.it/toi/it/ienitlt.html> (see `FP' below), + # taken from a publication of the Italian National Electrotechnical Institute. + # When the three sources disagree, guess who's right, as follows: + # + # year FP Shanks (S) Whitman (W) Go with: + # 1916 06-03 06-03 24:00 06-03 00:00 FP & W + # 09-30 09-30 24:00 09-30 01:00 FP; guess 24:00s + # 1917 04-01 03-31 24:00 03-31 00:00 FP & S + # 09-30 09-29 24:00 09-30 01:00 FP & W + # 1918 03-09 03-09 24:00 03-09 00:00 FP & S + # 10-06 10-05 24:00 10-06 01:00 FP & W + # 1919 03-01 03-01 24:00 03-01 00:00 FP & S + # 10-04 10-04 24:00 10-04 01:00 FP; guess 24:00s + # 1920 03-20 03-20 24:00 03-20 00:00 FP & S + # 09-18 09-18 24:00 10-01 01:00 FP; guess 24:00s + # 1944 04-02 04-03 02:00 S (see M-Eur) + # 09-16 10-02 03:00 FP; guess 24:00s + # 1945 09-14 09-16 24:00 FP; guess 24:00s + # 1970 05-21 05-31 00:00 S + # 09-20 09-27 00:00 S + # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Italy 1916 only - Jun 3 0:00s 1:00 " DST" ! Rule Italy 1916 only - Oct 1 0:00s 0 - ! Rule Italy 1917 only - Apr 1 0:00s 1:00 " DST" Rule Italy 1917 only - Sep 30 0:00s 0 - ! Rule Italy 1918 only - Mar 10 0:00s 1:00 " DST" Rule Italy 1918 1919 - Oct Sun>=1 0:00s 0 - ! Rule Italy 1919 only - Mar 2 0:00s 1:00 " DST" ! Rule Italy 1920 only - Mar 21 0:00s 1:00 " DST" ! Rule Italy 1920 only - Sep 19 0:00s 0 - ! Rule Italy 1940 only - Jun 15 0:00s 1:00 " DST" ! Rule Italy 1944 only - Sep 17 0:00s 0 - Rule Italy 1945 only - Apr 2 2:00 1:00 " DST" ! Rule Italy 1945 only - Sep 15 0:00s 0 - Rule Italy 1946 only - Mar 17 2:00s 1:00 " DST" Rule Italy 1946 only - Oct 6 2:00s 0 - Rule Italy 1947 only - Mar 16 0:00s 1:00 " DST" *************** *** 1332,1340 **** Zone Europe/Rome 0:49:56 - LMT 1866 Sep 22 0:50 - RMT 1893 Nov # Rome Mean Time 1:00 Italy MET%s 1942 Nov 2 2:00s ! 1:00 M-Eur MET%s 1945 Apr 2 2:00s 1:00 Italy MET%s 1980 ! 1:00 EC MET%s Link Europe/Rome Europe/Vatican Link Europe/Rome Europe/San_Marino --- 1356,1364 ---- Zone Europe/Rome 0:49:56 - LMT 1866 Sep 22 0:50 - RMT 1893 Nov # Rome Mean Time 1:00 Italy MET%s 1942 Nov 2 2:00s ! 1:00 M-Eur MET%s 1944 Jul 1:00 Italy MET%s 1980 ! 1:00 EU MET%s Link Europe/Rome Europe/Vatican Link Europe/Rome Europe/San_Marino *************** *** 1353,1365 **** 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EC' soon. # Liechtenstein # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun 1:00 - MET 1981 ! 1:00 EC MET%s # Lithuania # They switched from the Julian to the Gregorian calendar on 1918 Feb 15. --- 1377,1389 ---- 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EU' soon. # Liechtenstein # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun 1:00 - MET 1981 ! 1:00 EU MET%s # Lithuania # They switched from the Julian to the Gregorian calendar on 1918 Feb 15. *************** *** 1375,1381 **** 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EC' soon. # Luxembourg # Whitman disagrees with most of these dates in minor ways; go with Shanks. --- 1399,1405 ---- 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EU' soon. # Luxembourg # Whitman disagrees with most of these dates in minor ways; go with Shanks. *************** *** 1410,1416 **** 0:00 Belgium WET%s 1940 May 14 3:00 1:00 M-Eur WET%s 1944 Sep 18 3:00 1:00 Belgium MET%s 1977 ! 1:00 EC MET%s # Macedonia # They switched from the Julian to the Gregorian calendar on 1918 Mar 18. --- 1434,1440 ---- 0:00 Belgium WET%s 1940 May 14 3:00 1:00 M-Eur WET%s 1944 Sep 18 3:00 1:00 Belgium MET%s 1977 ! 1:00 EU MET%s # Macedonia # They switched from the Julian to the Gregorian calendar on 1918 Mar 18. *************** *** 1420,1426 **** 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EC MET%s # Malta # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 1444,1450 ---- 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EU MET%s # Malta # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 1437,1443 **** 1:00 M-Eur MET%s 1945 Apr 2 2:00s 1:00 Italy MET%s 1973 Mar 31 1:00 Malta MET%s 1981 ! 1:00 EC MET%s # Moldova # They switched from the Julian to the Gregorian calendar on 1919 Mar 18. --- 1461,1467 ---- 1:00 M-Eur MET%s 1945 Apr 2 2:00s 1:00 Italy MET%s 1973 Mar 31 1:00 Malta MET%s 1981 ! 1:00 EU MET%s # Moldova # They switched from the Julian to the Gregorian calendar on 1919 Mar 18. *************** *** 1447,1453 **** 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EC' soon. # Monaco # Shanks gives 0:09 for Paris Mean Time; go with Howse's more precise 0:09:21. --- 1471,1477 ---- 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EU' soon. # Monaco # Shanks gives 0:09 for Paris Mean Time; go with Howse's more precise 0:09:21. *************** *** 1456,1462 **** 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time 0:00 France WET%s 1945 Sep 16 3:00 1:00 France MET%s 1977 ! 1:00 EC MET%s # Netherlands # Howse writes that the Netherlands' railways used GMT between 1892 and 1940, --- 1480,1486 ---- 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time 0:00 France WET%s 1945 Sep 16 3:00 1:00 France MET%s 1977 ! 1:00 EU MET%s # Netherlands # Howse writes that the Netherlands' railways used GMT between 1892 and 1940, *************** *** 1493,1499 **** 0:20 Neth %s 1940 May 16 0:40 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Neth MET%s 1977 ! 1:00 EC MET%s # Norway # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 1517,1523 ---- 0:20 Neth %s 1940 May 16 0:40 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Neth MET%s 1977 ! 1:00 EU MET%s # Norway # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 1514,1520 **** 1:00 Norway MET%s 1940 Aug 10 23:00 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Norway MET%s 1980 ! 1:00 EC MET%s # Svalbard is like Europe/Oslo. # # From Whitman: --- 1538,1544 ---- 1:00 Norway MET%s 1940 Aug 10 23:00 1:00 M-Eur MET%s 1945 Apr 2 2:00 1:00 Norway MET%s 1980 ! 1:00 EU MET%s # Svalbard is like Europe/Oslo. # # From Whitman: *************** *** 1555,1561 **** 1:00 M-Eur MET%s 1944 Oct 1:00 Poland MET%s 1977 Apr 3 1:00 1:00 W-Eur MET%s ! # This may change to `EC' soon. # Portugal # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 1579,1585 ---- 1:00 M-Eur MET%s 1944 Oct 1:00 Poland MET%s 1977 Apr 3 1:00 1:00 W-Eur MET%s ! # This may change to `EU' soon. # Portugal # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 1625,1640 **** 0:00 Port WET%s 1966 Apr 3 2:00 1:00 - MET 1976 Sep 26 1:00 0:00 Port WET%s 1983 Sep 25 1:00s ! 0:00 EC WET%s 1992 Sep 27 1:00s # From Rui Pedro Salgueiro <rps(a)inescca.inescc.pt> (November 12, 1992): # Portugal has recently (September, 27) changed timezone # (from WET to MET or CET) to harmonize with EEC. ! 1:00 EC MET%s 1996 Mar 31 1:00u # Martin Bruckmann <martin(a)ua.pt> (1996-02-29) reports via Peter Ilieve # that Portugal is reverting to 0:00 by not moving its clocks this spring. # The new Prime Minister was fed up with getting up in the dark in the winter. 0:00 1:00 "WET DST" 1996 Oct 27 1:00u ! 0:00 EC WET%s # We don't know what happened to Madeira or the Azores, # so we'll just use Shanks for now. # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 1649,1664 ---- 0:00 Port WET%s 1966 Apr 3 2:00 1:00 - MET 1976 Sep 26 1:00 0:00 Port WET%s 1983 Sep 25 1:00s ! 0:00 EU WET%s 1992 Sep 27 1:00s # From Rui Pedro Salgueiro <rps(a)inescca.inescc.pt> (November 12, 1992): # Portugal has recently (September, 27) changed timezone # (from WET to MET or CET) to harmonize with EEC. ! 1:00 EU MET%s 1996 Mar 31 1:00u # Martin Bruckmann <martin(a)ua.pt> (1996-02-29) reports via Peter Ilieve # that Portugal is reverting to 0:00 by not moving its clocks this spring. # The new Prime Minister was fed up with getting up in the dark in the winter. 0:00 1:00 "WET DST" 1996 Oct 27 1:00u ! 0:00 EU WET%s # We don't know what happened to Madeira or the Azores, # so we'll just use Shanks for now. # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 1649,1655 **** -1:00 Port ACT%s 1966 Apr 3 2:00 0:00 - WET 1977 Mar 27 0:00 Port WET%s 1983 Sep 25 1:00s ! 0:00 EC WET%s # Romania # Catholic Romania switched from the Julian to the Gregorian calendar on --- 1673,1679 ---- -1:00 Port ACT%s 1966 Apr 3 2:00 0:00 - WET 1977 Mar 27 0:00 Port WET%s 1983 Sep 25 1:00s ! 0:00 EU WET%s # Romania # Catholic Romania switched from the Julian to the Gregorian calendar on *************** *** 1667,1673 **** 1:44 - BMT 1931 Jul 24 # Bucharest MT 2:00 Romania EET%s 1981 Mar 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EC' soon. # Russia # From Paul Eggert <eggert(a)twinsun.com> (May 28, 1994): --- 1691,1697 ---- 1:44 - BMT 1931 Jul 24 # Bucharest MT 2:00 Romania EET%s 1981 Mar 29 2:00s 2:00 M-Eur EET%s ! # This may change to `EU' soon. # Russia # From Paul Eggert <eggert(a)twinsun.com> (May 28, 1994): *************** *** 1714,1720 **** # I do not know why they have decided to make this change; # as far as I remember it was done exactly during winter->summer switching # so we (Novosibirsk) simply did not switch. - # Tomsk is still 4 hours ahead of Moscow. Zone Asia/Novosibirsk 5:31:40 - LMT 1924 May 2 6:00 - NSK 1957 Mar 7:00 Russia NS%s 1991 Mar 31 2:00s --- 1738,1743 ---- *************** *** 1723,1734 **** 7:00 Russia NS%s 1994 Mar 27 2:00s 6:00 1:00 NSD 1994 Sep 25 2:00s 6:00 Russia NS%s ! Zone Asia/Tomsk 5:39:52 - LMT 1924 May 2 ! 6:00 - TSK 1957 Mar ! 7:00 Russia TS%s 1991 Mar 31 2:00s ! 6:00 1:00 TSD 1991 Sep 29 2:00s ! 6:00 - TSK 1992 Jan 19 2:00s ! 7:00 Russia TS%s Zone Asia/Irkutsk 6:57:20 - LMT 1880 6:57 - LST 1924 May 2 7:00 - ISK 1957 Mar --- 1746,1757 ---- 7:00 Russia NS%s 1994 Mar 27 2:00s 6:00 1:00 NSD 1994 Sep 25 2:00s 6:00 Russia NS%s ! Zone Asia/Krasnoyarsk 6:11:20 - LMT 1924 May 2 ! 6:00 - KRSK 1957 Mar ! 7:00 Russia KRS%s 1991 Mar 31 2:00s ! 6:00 1:00 KRSD 1991 Sep 29 2:00s ! 6:00 - KRSK 1992 Jan 19 2:00s ! 7:00 Russia KRS%s Zone Asia/Irkutsk 6:57:20 - LMT 1880 6:57 - LST 1924 May 2 7:00 - ISK 1957 Mar *************** *** 1780,1786 **** 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EC MET%s # Spain # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 1803,1809 ---- 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EU MET%s # Spain # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S *************** *** 1825,1836 **** Zone Europe/Madrid -0:14:44 - LMT 1901 0:00 Spain WET%s 1946 Sep 30 1:00 Spain MET%s 1979 ! 1:00 EC MET%s Zone Atlantic/Canary -1:01:36 - LMT 1922 Mar # Las Palmas de Gran C. -1:00 - ACT 1946 Sep 30 1:00 0:00 - WET 1980 Apr 6 0:00s 0:00 1:00 "WET DST" 1980 Sep 28 0:00s ! 0:00 EC WET%s # Sweden # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 1848,1859 ---- Zone Europe/Madrid -0:14:44 - LMT 1901 0:00 Spain WET%s 1946 Sep 30 1:00 Spain MET%s 1979 ! 1:00 EU MET%s Zone Atlantic/Canary -1:01:36 - LMT 1922 Mar # Las Palmas de Gran C. -1:00 - ACT 1946 Sep 30 1:00 0:00 - WET 1980 Apr 6 0:00s 0:00 1:00 "WET DST" 1980 Sep 28 0:00s ! 0:00 EU WET%s # Sweden # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 1839,1845 **** 1:00 - MET 1916 Apr 14 23:00s 1:00 1:00 "MET DST" 1916 Sep 30 23:00s 1:00 - MET 1980 ! 1:00 EC MET%s # Switzerland # From Howse (1988), p 82: --- 1862,1868 ---- 1:00 - MET 1916 Apr 14 23:00s 1:00 1:00 "MET DST" 1916 Sep 30 23:00s 1:00 - MET 1980 ! 1:00 EU MET%s # Switzerland # From Howse (1988), p 82: *************** *** 1857,1863 **** Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 0:30 - SST 1894 Jun # Swiss Standard Time 1:00 Swiss MET%s 1981 ! 1:00 EC MET%s # Turkey # European Turkey switched to the Gregorian calendar in 1908. --- 1880,1886 ---- Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 0:30 - SST 1894 Jun # Swiss Standard Time 1:00 Swiss MET%s 1981 ! 1:00 EU MET%s # Turkey # European Turkey switched to the Gregorian calendar in 1908. *************** *** 1922,1928 **** 3:00 Turkey TUR%s 1985 Apr 20 2:00 Turkey EET%s 1986 2:00 M-Eur EET%s ! # This may change to `EC' soon. Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # Ukraine --- 1945,1951 ---- 3:00 Turkey TUR%s 1985 Apr 20 2:00 Turkey EET%s 1986 2:00 M-Eur EET%s ! # This may change to `EU' soon. Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # Ukraine *************** *** 1940,1946 **** 2:00 - EET 1930 Jun 21 3:00 Russia MS%s 1990 Jul 17 2:00 M-Eur EET%s ! # This may change to `EC' soon. Zone Europe/Simferopol 2:16:24 - LMT 1880 2:08 Russia LST%s 1919 Jul 1 2:00 2:08 Ukraine LST%s 1924 May 2 --- 1963,1969 ---- 2:00 - EET 1930 Jun 21 3:00 Russia MS%s 1990 Jul 17 2:00 M-Eur EET%s ! # This may change to `EU' soon. Zone Europe/Simferopol 2:16:24 - LMT 1880 2:08 Russia LST%s 1919 Jul 1 2:00 2:08 Ukraine LST%s 1924 May 2 *************** *** 1962,1968 **** 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EC MET%s ############################################################################### --- 1985,1991 ---- 1:00 M-Eur MET%s 1945 May 8 2:00s 1:00 1:00 "MET DST" 1945 Sep 16 2:00s 1:00 - MET 1983 ! 1:00 EU MET%s ###############################################################################

1 0

updated tzcode and tzdata
by ado May 3, 1996

May 3, 1996

New versions of the time zone files are available by anonymous ftp from elsie.nci.nih.gov (165.112.73.1) in the ~ftp/pub directory: -rw-r--r-- 1 ado 74738 May 2 23:01 tzcode96f.tar.gz -rw-r--r-- 1 ado 73532 May 2 23:01 tzdata96g.tar.gz The changes get us some of the way to fixing the problems noted in Paul Eggert's letter yesterday (in addition to a few others). The approach has been to make zic a bit smarter about figuring out what time zone abbreviations apply just after the time specified in the "UNTIL" part of a zone line. Putting the smarts in zic means avoiding having transition times show up in both "Zone" lines and "Rule" lines, which in turn avoids multiple transition time entries in time zone files. (This also makes the zic input files such as "europe" a bit shorter and should ease maintenance.) Results of regression testing are attached. Lines marked "EGGERT" apply to problems reported in Paul's letter yesterday; lines marked "NONEGG" are other changes found in the regression testing. Lines marked "<" appear in old zdump output; lines marked ">" appear in new zdump output. Some notes: 1. The problem with simultaneously entering (or leaving) DST and subtracting an hour from the GMT offset remains. Getting the program to "do what I mean" in these cases will, I hope, follow. 2. The testing points up that the "northamerica" file specifies that Phoenix did a couple of 1944 changes at one MINUTE (rather than one HOUR) past midnight; if anyone has leads on the correctness of this, I'd love it. 3. Also, the testing points up that Budapest was supposed to have switched from using standard M-Eur rules to using its own rules on July 1, 1918, but that the new rules didn't specify use of DST until 1919. Again, if anyone knows whether Budapest turned off DST early in 1918, I'd appreciate a pointer. Folks may want to wait a bit until the dust settles. --ado OPEN NONEGG HMMM... > America/Phoenix Fri Mar 17 07:00:59 1944 GMT = Fri Mar 17 00:00:59 1944 MST isdst=0 OPEN NONEGG HMMM... > America/Phoenix Fri Mar 17 07:01:00 1944 GMT = Fri Mar 17 01:01:00 1944 MWT isdst=1 OPEN NONEGG HMMM... > America/Phoenix Sun Oct 1 06:00:59 1944 GMT = Sun Oct 1 00:00:59 1944 MWT isdst=1 OPEN NONEGG HMMM... > America/Phoenix Sun Oct 1 06:01:00 1944 GMT = Sat Sep 30 23:01:00 1944 MST isdst=0 OPEN NONEGG HMMM... < Europe/Budapest Sun Sep 29 00:59:59 1918 GMT = Sun Sep 29 02:59:59 1918 MET DST isdst=1 OPEN NONEGG HMMM... < Europe/Budapest Sun Sep 29 01:00:00 1918 GMT = Sun Sep 29 02:00:00 1918 MET isdst=0 OPEN NONEGG HMMM... < Europe/Budapest Tue Apr 15 01:59:59 1919 GMT = Tue Apr 15 02:59:59 1919 MET isdst=0 OPEN NONEGG HMMM... < Europe/Budapest Tue Apr 15 02:00:00 1919 GMT = Tue Apr 15 04:00:00 1919 MET DST isdst=1 OPEN NONEGG HMMM... > Europe/Budapest Sun Jun 30 21:59:59 1918 GMT = Sun Jun 30 23:59:59 1918 MET DST isdst=1 OPEN NONEGG HMMM... > Europe/Budapest Sun Jun 30 22:00:00 1918 GMT = Sun Jun 30 23:00:00 1918 MET isdst=0 OPEN NONEGG HMMM... > Europe/Budapest Tue Apr 15 00:59:59 1919 GMT = Tue Apr 15 01:59:59 1919 MET isdst=0 OPEN NONEGG HMMM... > Europe/Budapest Tue Apr 15 01:00:00 1919 GMT = Tue Apr 15 03:00:00 1919 MET DST isdst=1 ============================================================================================================================== OPEN EGGERT SAME FILE America/Menominee [1973: simultaneously start DST and subtract an hour from gmtoff] OPEN EGGERT SAME ZDUMP America/Juneau [1983: simultaneously end DST and subtract an hour from gmtoff] OPEN EGGERT SAME ZDUMP America/Scoresbysund [1981: simultaneously start DST and subtract an hour from gmtoff] OPEN EGGERT SAME ZDUMP Asia/Istanbul [1985: simultaneously start DST and subtract an hour from gmtoff] OPEN EGGERT ALSO BELOW Atlantic/Stanley [1985: simultaneonsly start DST and subtract an hour from gmtoff] ============================================================================================================================== CHANGED NONEGG COLLAPSE < Africa/Freetown Sun Jun 1 00:53:00 1913 GMT = Sat May 31 23:53:00 1913 FMT isdst=0 CHANGED NONEGG COLLAPSE < Africa/Freetown Sun Oct 26 00:59:59 1913 GMT = Sat Oct 25 23:59:59 1913 FMT isdst=0 CHANGED NONEGG COLLAPSE < Africa/Freetown Sun Oct 26 01:00:00 1913 GMT = Sun Oct 26 00:00:00 1913 AAT isdst=0 CHANGED NONEGG COLLAPSE > Africa/Freetown Sun Jun 1 00:53:00 1913 GMT = Sat May 31 23:53:00 1913 AAT isdst=0 CHANGED NONEGG COLLAPSE < Africa/Khartoum Wed Dec 31 21:49:52 1930 GMT = Wed Dec 31 23:49:52 1930 LMT isdst=0 CHANGED NONEGG COLLAPSE < Africa/Khartoum Sat Feb 7 21:59:59 1931 GMT = Sat Feb 7 23:59:59 1931 LMT isdst=0 CHANGED NONEGG COLLAPSE < Africa/Khartoum Sat Feb 7 22:00:00 1931 GMT = Sun Feb 8 00:00:00 1931 EET isdst=0 CHANGED NONEGG COLLAPSE > Africa/Khartoum Wed Dec 31 21:49:52 1930 GMT = Wed Dec 31 23:49:52 1930 EET isdst=0 CHANGED NONEGG FIX ABBREV. < America/Santiago Sat Jan 1 04:43:00 1910 GMT = Fri Dec 31 23:43:00 1909 SMT isdst=0 CHANGED NONEGG FIX ABBREV. < America/Santiago Sun Sep 1 04:59:59 1918 GMT = Sat Aug 31 23:59:59 1918 SMT isdst=0 CHANGED NONEGG FIX ABBREV. > America/Santiago Sat Jan 1 04:43:00 1910 GMT = Fri Dec 31 23:43:00 1909 CST isdst=0 CHANGED NONEGG FIX ABBREV. > America/Santiago Sun Sep 1 04:59:59 1918 GMT = Sat Aug 31 23:59:59 1918 CST isdst=0 CHANGED NONEGG FIX ABBREV. < America/Tijuana Fri Jan 14 07:00:00 1949 GMT = Thu Jan 13 23:00:00 1949 MST isdst=0 CHANGED NONEGG FIX ABBREV. < America/Tijuana Sun Apr 30 09:59:59 1950 GMT = Sun Apr 30 01:59:59 1950 MST isdst=0 CHANGED NONEGG FIX ABBREV. > America/Tijuana Fri Jan 14 07:00:00 1949 GMT = Thu Jan 13 23:00:00 1949 PST isdst=0 CHANGED NONEGG FIX ABBREV. > America/Tijuana Sun Apr 30 09:59:59 1950 GMT = Sun Apr 30 01:59:59 1950 PST isdst=0 CHANGED NONEGG COLLAPSE < Asia/Tel_Aviv Mon Dec 31 21:39:00 1917 GMT = Mon Dec 31 23:39:00 1917 JMT isdst=0 CHANGED NONEGG COLLAPSE < Asia/Tel_Aviv Mon Dec 31 21:59:59 1917 GMT = Mon Dec 31 23:59:59 1917 JMT isdst=0 CHANGED NONEGG COLLAPSE < Asia/Tel_Aviv Mon Dec 31 22:00:00 1917 GMT = Tue Jan 1 00:00:00 1918 IST isdst=0 CHANGED NONEGG COLLAPSE > Asia/Tel_Aviv Mon Dec 31 21:39:00 1917 GMT = Mon Dec 31 23:39:00 1917 IST isdst=0 CHANGED NONEGG FIX ABBREV. < Australia/Lord_Howe Sat Feb 28 14:00:00 1981 GMT = Sun Mar 1 00:30:00 1981 EST isdst=0 CHANGED NONEGG FIX ABBREV. < Australia/Lord_Howe Sat Oct 24 15:29:59 1981 GMT = Sun Oct 25 01:59:59 1981 EST isdst=0 CHANGED NONEGG FIX ABBREV. > Australia/Lord_Howe Sat Feb 28 14:00:00 1981 GMT = Sun Mar 1 00:30:00 1981 LHST isdst=0 CHANGED NONEGG FIX ABBREV. > Australia/Lord_Howe Sat Oct 24 15:29:59 1981 GMT = Sun Oct 25 01:59:59 1981 LHST isdst=0 CHANGED NONEGG FIX ABBREV. < Europe/Brussels Tue Aug 4 00:00:00 1914 GMT = Tue Aug 4 01:00:00 1914 WET isdst=0 CHANGED NONEGG FIX ABBREV. < Europe/Brussels Sun Apr 30 21:59:59 1916 GMT = Sun Apr 30 22:59:59 1916 WET isdst=0 CHANGED NONEGG FIX ABBREV. > Europe/Brussels Tue Aug 4 00:00:00 1914 GMT = Tue Aug 4 01:00:00 1914 MET isdst=0 CHANGED NONEGG FIX ABBREV. > Europe/Brussels Sun Apr 30 21:59:59 1916 GMT = Sun Apr 30 22:59:59 1916 MET isdst=0 CHANGED NONEGG FIX ABBREV. < Europe/Warsaw Wed Aug 4 22:36:00 1915 GMT = Wed Aug 4 23:36:00 1915 WMT isdst=0 CHANGED NONEGG FIX ABBREV. < Europe/Warsaw Sun Apr 30 21:59:59 1916 GMT = Sun Apr 30 22:59:59 1916 WMT isdst=0 CHANGED NONEGG FIX ABBREV. > Europe/Warsaw Wed Aug 4 22:36:00 1915 GMT = Wed Aug 4 23:36:00 1915 MET isdst=0 CHANGED NONEGG FIX ABBREV. > Europe/Warsaw Sun Apr 30 21:59:59 1916 GMT = Sun Apr 30 22:59:59 1916 MET isdst=0 CHANGED NONEGG FIX ABBREV. < Europe/Warsaw Sun Jun 23 00:59:59 1940 GMT = Sun Jun 23 02:59:59 1940 EET isdst=0 CHANGED NONEGG FIX ABBREV. > Europe/Warsaw Wed May 31 21:59:59 1922 GMT = Wed May 31 23:59:59 1922 EET isdst=0 CHANGED NONEGG FIX ABBREV. > Europe/Warsaw Wed May 31 22:00:00 1922 GMT = Wed May 31 23:00:00 1922 MET isdst=0 CHANGED NONEGG FIX ABBREV. > Europe/Warsaw Sun Jun 23 00:59:59 1940 GMT = Sun Jun 23 01:59:59 1940 MET isdst=0 ============================================================================================================================== CHANGED EGGERT COLLAPSE < America/Asuncion Mon Apr 1 03:00:00 1974 GMT = Sun Mar 31 23:00:00 1974 EST isdst=0 CHANGED EGGERT COLLAPSE < America/Asuncion Mon Apr 1 03:59:59 1974 GMT = Sun Mar 31 23:59:59 1974 EST isdst=0 CHANGED EGGERT COLLAPSE < America/Asuncion Mon Apr 1 04:00:00 1974 GMT = Mon Apr 1 00:00:00 1974 AST isdst=0 CHANGED EGGERT COLLAPSE > America/Asuncion Mon Apr 1 03:00:00 1974 GMT = Sun Mar 31 23:00:00 1974 AST isdst=0 CHANGED EGGERT COLLAPSE < America/Barbados Fri Jan 1 03:58:00 1932 GMT = Thu Dec 31 23:58:00 1931 BMT isdst=0 CHANGED EGGERT COLLAPSE < America/Barbados Fri Jan 1 03:59:59 1932 GMT = Thu Dec 31 23:59:59 1931 BMT isdst=0 CHANGED EGGERT COLLAPSE < America/Barbados Fri Jan 1 04:00:00 1932 GMT = Fri Jan 1 00:00:00 1932 AST isdst=0 CHANGED EGGERT COLLAPSE > America/Barbados Fri Jan 1 03:58:00 1932 GMT = Thu Dec 31 23:58:00 1931 AST isdst=0 CHANGED EGGERT COLLAPSE < America/Belize Mon Apr 1 05:52:48 1912 GMT = Sun Mar 31 23:52:48 1912 LMT isdst=0 CHANGED EGGERT COLLAPSE < America/Belize Mon Apr 1 05:59:59 1912 GMT = Sun Mar 31 23:59:59 1912 LMT isdst=0 CHANGED EGGERT COLLAPSE < America/Belize Mon Apr 1 06:00:00 1912 GMT = Mon Apr 1 00:00:00 1912 CST isdst=0 CHANGED EGGERT COLLAPSE > America/Belize Mon Apr 1 05:52:48 1912 GMT = Sun Mar 31 23:52:48 1912 CST isdst=0 CHANGED EGGERT COLLAPSE < America/Costa_Rica Sat Jan 15 05:36:00 1921 GMT = Fri Jan 14 23:36:00 1921 SJMT isdst=0 CHANGED EGGERT COLLAPSE < America/Costa_Rica Sat Jan 15 05:59:59 1921 GMT = Fri Jan 14 23:59:59 1921 SJMT isdst=0 CHANGED EGGERT COLLAPSE < America/Costa_Rica Sat Jan 15 06:00:00 1921 GMT = Sat Jan 15 00:00:00 1921 CST isdst=0 CHANGED EGGERT COLLAPSE > America/Costa_Rica Sat Jan 15 05:36:00 1921 GMT = Fri Jan 14 23:36:00 1921 CST isdst=0 CHANGED EGGERT COLLAPSE < America/El_Salvador Sat Jan 1 05:56:48 1921 GMT = Fri Dec 31 23:56:48 1920 LMT isdst=0 CHANGED EGGERT COLLAPSE < America/El_Salvador Sat Jan 1 05:59:59 1921 GMT = Fri Dec 31 23:59:59 1920 LMT isdst=0 CHANGED EGGERT COLLAPSE < America/El_Salvador Sat Jan 1 06:00:00 1921 GMT = Sat Jan 1 00:00:00 1921 CST isdst=0 CHANGED EGGERT COLLAPSE > America/El_Salvador Sat Jan 1 05:56:48 1921 GMT = Fri Dec 31 23:56:48 1920 CST isdst=0 CHANGED EGGERT COLLAPSE < America/Managua Sun Feb 16 05:00:00 1975 GMT = Sat Feb 15 23:00:00 1975 EST isdst=0 CHANGED EGGERT COLLAPSE < America/Managua Sun Feb 16 05:59:59 1975 GMT = Sat Feb 15 23:59:59 1975 EST isdst=0 CHANGED EGGERT COLLAPSE < America/Managua Sun Feb 16 06:00:00 1975 GMT = Sun Feb 16 00:00:00 1975 CST isdst=0 CHANGED EGGERT COLLAPSE > America/Managua Sun Feb 16 05:00:00 1975 GMT = Sat Feb 15 23:00:00 1975 CST isdst=0 CHANGED EGGERT COLLAPSE < America/Port-au-Prince Wed Jan 24 16:49:00 1917 GMT = Wed Jan 24 11:49:00 1917 PPMT isdst=0 CHANGED EGGERT COLLAPSE < America/Port-au-Prince Wed Jan 24 16:59:59 1917 GMT = Wed Jan 24 11:59:59 1917 PPMT isdst=0 CHANGED EGGERT COLLAPSE < America/Port-au-Prince Wed Jan 24 17:00:00 1917 GMT = Wed Jan 24 12:00:00 1917 EST isdst=0 CHANGED EGGERT COLLAPSE > America/Port-au-Prince Wed Jan 24 16:49:00 1917 GMT = Wed Jan 24 11:49:00 1917 EST isdst=0 CHANGED EGGERT COLLAPSE < America/Regina Fri Sep 1 06:58:36 1905 GMT = Thu Aug 31 23:58:36 1905 LMT isdst=0 CHANGED EGGERT COLLAPSE < America/Regina Fri Sep 1 06:59:59 1905 GMT = Thu Aug 31 23:59:59 1905 LMT isdst=0 CHANGED EGGERT COLLAPSE < America/Regina Fri Sep 1 07:00:00 1905 GMT = Fri Sep 1 00:00:00 1905 MST isdst=0 CHANGED EGGERT COLLAPSE > America/Regina Fri Sep 1 06:58:36 1905 GMT = Thu Aug 31 23:58:36 1905 MST isdst=0 CHANGED EGGERT COLLAPSE < America/Santo_Domingo Sat Apr 1 16:40:00 1933 GMT = Sat Apr 1 11:40:00 1933 SDMT isdst=0 CHANGED EGGERT COLLAPSE < America/Santo_Domingo Sat Apr 1 16:59:59 1933 GMT = Sat Apr 1 11:59:59 1933 SDMT isdst=0 CHANGED EGGERT COLLAPSE < America/Santo_Domingo Sat Apr 1 17:00:00 1933 GMT = Sat Apr 1 12:00:00 1933 EST isdst=0 CHANGED EGGERT COLLAPSE > America/Santo_Domingo Sat Apr 1 16:40:00 1933 GMT = Sat Apr 1 11:40:00 1933 EST isdst=0 CHANGED EGGERT COLLAPSE < Asia/Amman Wed Dec 31 21:36:16 1930 GMT = Wed Dec 31 23:36:16 1930 LMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Amman Wed Dec 31 21:59:59 1930 GMT = Wed Dec 31 23:59:59 1930 LMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Amman Wed Dec 31 22:00:00 1930 GMT = Thu Jan 1 00:00:00 1931 EET isdst=0 CHANGED EGGERT COLLAPSE > Asia/Amman Wed Dec 31 21:36:16 1930 GMT = Wed Dec 31 23:36:16 1930 EET isdst=0 CHANGED EGGERT COLLAPSE < Asia/Damascus Wed Dec 31 21:34:48 1919 GMT = Wed Dec 31 23:34:48 1919 LMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Damascus Wed Dec 31 21:59:59 1919 GMT = Wed Dec 31 23:59:59 1919 LMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Damascus Wed Dec 31 22:00:00 1919 GMT = Thu Jan 1 00:00:00 1920 EET isdst=0 CHANGED EGGERT COLLAPSE > Asia/Damascus Wed Dec 31 21:34:48 1919 GMT = Wed Dec 31 23:34:48 1919 EET isdst=0 CHANGED EGGERT COLLAPSE < Asia/Jerusalem Mon Dec 31 21:39:00 1917 GMT = Mon Dec 31 23:39:00 1917 JMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Jerusalem Mon Dec 31 21:59:59 1917 GMT = Mon Dec 31 23:59:59 1917 JMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Jerusalem Mon Dec 31 22:00:00 1917 GMT = Tue Jan 1 00:00:00 1918 IST isdst=0 CHANGED EGGERT COLLAPSE > Asia/Jerusalem Mon Dec 31 21:39:00 1917 GMT = Mon Dec 31 23:39:00 1917 IST isdst=0 CHANGED EGGERT COLLAPSE < Asia/Nicosia Sun Nov 13 21:46:32 1921 GMT = Sun Nov 13 23:46:32 1921 LMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Nicosia Sun Nov 13 21:59:59 1921 GMT = Sun Nov 13 23:59:59 1921 LMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Nicosia Sun Nov 13 22:00:00 1921 GMT = Mon Nov 14 00:00:00 1921 EET isdst=0 CHANGED EGGERT COLLAPSE > Asia/Nicosia Sun Nov 13 21:46:32 1921 GMT = Sun Nov 13 23:46:32 1921 EET isdst=0 CHANGED EGGERT COLLAPSE < Asia/Shanghai Sat Dec 31 15:54:08 1927 GMT = Sat Dec 31 23:54:08 1927 LMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Shanghai Sat Dec 31 15:59:59 1927 GMT = Sat Dec 31 23:59:59 1927 LMT isdst=0 CHANGED EGGERT COLLAPSE < Asia/Shanghai Sat Dec 31 16:00:00 1927 GMT = Sun Jan 1 00:00:00 1928 CST isdst=0 CHANGED EGGERT COLLAPSE > Asia/Shanghai Sat Dec 31 15:54:08 1927 GMT = Sat Dec 31 23:54:08 1927 CST isdst=0 CHANGED EGGERT COLLAPSE < Atlantic/Azores Wed May 24 01:55:00 1911 GMT = Tue May 23 23:55:00 1911 HMT isdst=0 CHANGED EGGERT COLLAPSE < Atlantic/Azores Wed May 24 01:59:59 1911 GMT = Tue May 23 23:59:59 1911 HMT isdst=0 CHANGED EGGERT COLLAPSE < Atlantic/Azores Wed May 24 02:00:00 1911 GMT = Wed May 24 00:00:00 1911 ACT isdst=0 CHANGED EGGERT COLLAPSE > Atlantic/Azores Wed May 24 01:55:00 1911 GMT = Tue May 23 23:55:00 1911 ACT isdst=0 CHANGED EGGERT COLLAPSE < Atlantic/Stanley Tue Mar 12 03:51:00 1912 GMT = Mon Mar 11 23:51:00 1912 SMT isdst=0 CHANGED EGGERT COLLAPSE < Atlantic/Stanley Tue Mar 12 03:59:59 1912 GMT = Mon Mar 11 23:59:59 1912 SMT isdst=0 CHANGED EGGERT COLLAPSE < Atlantic/Stanley Tue Mar 12 04:00:00 1912 GMT = Tue Mar 12 00:00:00 1912 AST isdst=0 CHANGED EGGERT COLLAPSE > Atlantic/Stanley Tue Mar 12 03:51:00 1912 GMT = Mon Mar 11 23:51:00 1912 AST isdst=0 CHANGED EGGERT FIX ABBREV. < Europe/Brussels Sat Mar 1 22:00:00 1919 GMT = Sat Mar 1 22:00:00 1919 MET isdst=0 CHANGED EGGERT FIX ABBREV. < Europe/Brussels Sat Mar 1 22:59:59 1919 GMT = Sat Mar 1 22:59:59 1919 MET isdst=0 CHANGED EGGERT FIX ABBREV. > Europe/Brussels Sat Mar 1 22:00:00 1919 GMT = Sat Mar 1 22:00:00 1919 WET isdst=0 CHANGED EGGERT FIX ABBREV. > Europe/Brussels Sat Mar 1 22:59:59 1919 GMT = Sat Mar 1 22:59:59 1919 WET isdst=0 CHANGED EGGERT COLLAPSE < Pacific/Noumea Fri Jan 12 12:54:12 1912 GMT = Fri Jan 12 23:54:12 1912 LMT isdst=0 CHANGED EGGERT COLLAPSE < Pacific/Noumea Fri Jan 12 12:59:59 1912 GMT = Fri Jan 12 23:59:59 1912 LMT isdst=0 cHANGED EGGERT COLLAPSE < Pacific/Noumea Fri Jan 12 13:00:00 1912 GMT = Sat Jan 13 00:00:00 1912 NCST isdst=0 CHANGED EGGERT COLLAPSE > Pacific/Noumea Fri Jan 12 12:54:12 1912 GMT = Fri Jan 12 23:54:12 1912 NCST isdst=0

2 1

bug in zic for Rule and Zone changing simultaneously?
by Paul Eggert May 1, 1996

May 1, 1996

I found 23 bugs in the latest tz database. I enclose two detailed examples below, and a brief summary of all the bugs. It appears that zic has problems when applying Zone and Rule changes simultaneously. Example 1. The edited input is: # Rule NAME FROM TO TYPE IN ON AT SAVE LET Rule Falk 1985 max - Sep Sun>=9 0:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/Stanley -3:00 Falk E%sT 1985 Sep 15 -4:00 Falk A%sT The zdump -v output is: Atlantic/Stanley Sun Sep 15 02:59:59 1985 GMT = Sat Sep 14 23:59:59 1985 EST isdst=0 Atlantic/Stanley Sun Sep 15 03:00:00 1985 GMT = Sat Sep 14 23:00:00 1985 AST isdst=0 Atlantic/Stanley Sun Sep 15 03:59:59 1985 GMT = Sat Sep 14 23:59:59 1985 AST isdst=0 Atlantic/Stanley Sun Sep 15 04:00:00 1985 GMT = Sun Sep 15 01:00:00 1985 ADT isdst=1 zdump claims that inhabitants of Stanley changed their clocks twice that night, when they changed them only once. The transition should have been from 1985-09-14 23:59:59 -0300 (EST) to 1985-09-15 00:00:00 -0400 (ADT), but zic applied `Zone' first, yielding 1985-09-14 23:00:00 -0200 (EDT), and then one hour later applied `Rule', yielding the proper time afterwards; but there's a one-hour period of incorrect times. Example 2. The input is: # Rule NAME FROM TO TYPE IN ON AT SAVE LET Rule Regina 1905 only - Sep 1 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Regina -6:58:36 - LMT 1905 Sep -7:00 Regina M%sT 1966 Apr 15 The zdump output is: America/Regina Fri Sep 1 06:58:35 1905 GMT = Thu Aug 31 23:59:59 1905 LMT isdst=0 America/Regina Fri Sep 1 06:58:36 1905 GMT = Thu Aug 31 23:58:36 1905 LMT isdst=0 America/Regina Fri Sep 1 06:59:59 1905 GMT = Thu Aug 31 23:59:59 1905 LMT isdst=0 America/Regina Fri Sep 1 07:00:00 1905 GMT = Fri Sep 1 00:00:00 1905 MST isdst=0 Again, there are two transitions where there should be one, and it's because the Zone was applied before the Rule, when they were meant to be applied simultaneously. In this case, the erroneous period is only 84 seconds long. Here is a list of the 23 bugs I found. Each line has the following columns: timezone name first time_t value in the erroneous period (1) first time_t value after the erroneous period is over (2) ctime applied to (1) ctime applied to (2) America/Asuncion 134017200 134020800 Sun Mar 31 23:00:00 1974 Mon Apr 1 00:00:00 1974 America/Barbados -1199217720 -1199217600 Thu Dec 31 23:58:00 1931 Fri Jan 1 00:00:00 1932 America/Belize -1822500432 -1822500000 Sun Mar 31 23:52:48 1912 Mon Apr 1 00:00:00 1912 America/Costa_Rica -1545071040 -1545069600 Fri Jan 14 23:36:00 1921 Sat Jan 15 00:00:00 1921 America/El_Salvador -1546279392 -1546279200 Fri Dec 31 23:56:48 1920 Sat Jan 1 00:00:00 1921 America/Juneau 436352400 436356000 Sun Oct 30 01:00:00 1983 Sun Oct 30 01:00:00 1983 America/Managua 161758800 161762400 Sat Feb 15 23:00:00 1975 Sun Feb 16 00:00:00 1975 America/Menominee 104914800 104918400 Sun Apr 29 01:00:00 1973 Sun Apr 29 03:00:00 1973 America/Port-au-Prince -1670483460 -1670482800 Wed Jan 24 11:49:00 1917 Wed Jan 24 12:00:00 1917 America/Regina -2030202084 -2030202000 Thu Aug 31 23:58:36 1905 Fri Sep 1 00:00:00 1905 America/Santo_Domingo -1159773600 -1159772400 Sat Apr 1 11:40:00 1933 Sat Apr 1 12:00:00 1933 America/Scoresbysund 354679200 354682800 Sun Mar 29 01:00:00 1981 Sun Mar 29 03:00:00 1981 Asia/Amman -1230776624 -1230775200 Wed Dec 31 23:36:16 1930 Thu Jan 1 00:00:00 1931 Asia/Damascus -1577931912 -1577930400 Wed Dec 31 23:34:48 1919 Thu Jan 1 00:00:00 1920 Asia/Istanbul 482792400 482796000 Fri Apr 19 23:00:00 1985 Sat Apr 20 01:00:00 1985 Asia/Jerusalem -1641003660 -1641002400 Mon Dec 31 23:39:00 1917 Tue Jan 1 00:00:00 1918 Asia/Nicosia -1518920008 -1518919200 Sun Nov 13 23:46:32 1921 Mon Nov 14 00:00:00 1921 Asia/Shanghai -1325491552 -1325491200 Sat Dec 31 23:54:08 1927 Sun Jan 1 00:00:00 1928 Atlantic/Azores -1849557900 -1849557600 Tue May 23 23:55:00 1911 Wed May 24 00:00:00 1911 Atlantic/Stanley -1824235740 -1824235200 Mon Mar 11 23:51:00 1912 Tue Mar 12 00:00:00 1912 Atlantic/Stanley 495601200 495604800 Sat Sep 14 23:00:00 1985 Sun Sep 15 01:00:00 1985 Europe/Brussels -1604282400 -1604278800 Sat Mar 1 22:00:00 1919 Sun Mar 2 00:00:00 1919 Pacific/Noumea -1829387148 -1829386800 Fri Jan 12 23:54:12 1912 Sat Jan 13 00:00:00 1912

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Time Zone Request [forwarded with permission]
by ado April 24, 1996

April 24, 1996

I've forwarded the attached request with permission of the originator; replies can go to Ron or to the list as appropriate. --ado > ...Do you have any idea where I can find a tutorial regarding time > zones that includes a discussion of the international date line? Any > help will be greatly appreciated. Many thanks, Ron > > Ron Schodt > schodtr(a)infomail.infonet

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/usr/share/lib/zoneinfo/europe
by allane＠parallax.co.uk April 23, 1996

April 23, 1996

Hi, The europe file as distributed by Sun Microsystems has, as far as I can tell, a small bug in the Europe/London zone. My diff is included below. At least the Sun seems to need the one hour offset in the RULES part instead of the GMTOFF. I have a small test program that shows the problem; if you are interested let me know. the problem only affects dates in the 1968-1971 period. Cheers, --- Allan ---------------------------------------------------------------------- Allan Engelhardt Consultant Parallax Solutions Ltd Stonecourt Siskin Drive Coventry CV3 4FJ Tel: [+44] (0)1203 514400 Fax: [+44] (0)1203 514401 E-Mail: Allan.Engelhardt(a)parallax.co.uk --- [% diff -c europe /usr/share/lib/zoneinfo/europe] --- *** europe Tue Apr 23 16:03:54 1996 --- /usr/share/lib/zoneinfo/europe Sat Jul 16 05:47:47 1994 *************** *** 661,667 **** # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/London -0:00:37 - LMT 1847 Sep 22 0:00 GB-Eire %s 1968 Feb 18 2:00 ! 0:00 1:00 BST 1971 Oct 31 2:00 # Fixed -AE- 0:00 GB-Eire %s Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2 -0:25:21 - DMT 1916 May 21 2:00 # Dublin MT --- 661,667 ---- # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/London -0:00:37 - LMT 1847 Sep 22 0:00 GB-Eire %s 1968 Feb 18 2:00 ! 1:00 - BST 1971 Oct 31 2:00 0:00 GB-Eire %s Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2 -0:25:21 - DMT 1916 May 21 2:00 # Dublin MT

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