Lee Steakley's report of the embarrassing error for Uruguay in the tz database prompted me to dust off the tz changes that have accumulated on my desk. Here's a proposed patch that combines the following: * Remove the last (bogus) transition for Uruguay. Also, I checked Shanks's 4th edition, and he disagrees with the IATA about Uruguay since 1990, but for lack of better info the following patch sticks with the IATA. * Change the pre-1911 longitude for America/Montserrat to my guess at the longitude of the new de facto capital, Olveston. (My atlas doesn't have this town.) Please see http://www.geo.mtu.edu/volcanoes/west.indies/soufriere/ for details on Montserrat's current upheavals. I suppose the zone.tab entry should also change, but I'd like better data first. * Fix Yugoslavia's legal data of transition for switching to the EU zone rules. This doesn't affect behavior; it's just documentation. (Thanks to Metod Kozelj for correcting my earlier transcription error.) * Add Peter Ilieve's commentary on the Eighth Directive of the European Parliament and of the Council of 22 July 1997 on summer-time arrangements. * Move the general comments at the top of the `africa' file to the `Theory' file, where they are more at home. Also, modernize the `Theory' file a bit. =================================================================== RCS file: RCS/Theory,v retrieving revision 1995.9 retrieving revision 1995.9.0.1 diff -c -r1995.9 -r1995.9.0.1 *** Theory 1995/12/21 17:28:25 1995.9 --- Theory 1997/08/29 08:34:24 1995.9.0.1 *************** *** 1,40 **** @(#)Theory 7.4 ! These time and date functions are much like the System V Release 2.0 (SVR2) ! time and date functions; there are a few additions and changes to extend ! the usefulness of the SVR2 functions: ! ! * In SVR2, time display in a process is controlled by the environment ! variable TZ, which "must be a three-letter time zone name, followed ! by a number representing the difference between local time and ! Greenwich Mean Time in hours, followed by an optional three-letter ! name for a daylight time zone;" when the optional daylight time zone is ! present, "standard U.S.A. Daylight Savings Time conversion is applied." ! This means that SVR2 can't deal with other (for example, Australian) ! daylight savings time rules, or situations where more than two time zone abbreviations are used in an area. ! * In SVR2, time conversion information is compiled into each program ! that does time conversion. This means that when time conversion rules change (as in the United States in 1987), all programs that do time conversion must be recompiled to ensure proper results. ! * In SVR2, time conversion fails for near-minimum or near-maximum ! time_t values when doing conversions for places that don't use GMT. ! ! * In SVR2, there's no tamper-proof way for a process to learn the system's best idea of local wall clock. (This is important for applications that an administrator wants used only at certain times-- without regard to whether the user has fiddled the "TZ" environment variable. While an administrator can "do everything in GMT" to get around the problem, doing so is inconvenient and precludes handling ! daylight savings time shifts--as might be required to limit phone calls to off-peak hours.) ! * These functions can account for leap seconds, thanks to Bradley White ! (bww@k.cs.cmu.edu). ! These are the changes that have been made to the SVR2 functions: * The "TZ" environment variable is used in generating the name of a file from which time zone information is read (or is interpreted a la --- 1,84 ---- @(#)Theory 7.4 ! ! ----- Outline ----- ! ! Time and date functions ! Names of time zone regions ! Time zone abbreviations ! ! ! ----- Time and date functions ----- ! ! These time and date functions are upwards compatible with POSIX.1, ! an international standard for Unix-like systems. ! As of this writing, the current edition of POSIX.1 is: ! ! Information technology --Portable Operating System Interface (POSIX (R)) ! -- Part 1: System Application Program Interface (API) [C Language] ! ISO/IEC 9945-1:1996 ! ANSI/IEEE Std 1003.1, 1996 Edition ! 1996-07-12 ! ! POSIX.1 has the following properties and limitations. ! ! * In POSIX.1, time display in a process is controlled by the ! environment variable TZ. Unfortunately, the POSIX.1 TZ string takes ! a form that is hard to describe and is error-prone in practice. ! Also, POSIX.1 TZ strings can't deal with other (for example, Israeli) ! daylight saving time rules, or situations where more than two time zone abbreviations are used in an area. ! The POSIX.1 TZ string takes the following form: ! ! stdoffset[dst[offset],date[/time],date[/time]] ! ! where: ! ! std and dst ! are 3 or more characters specifying the standard ! and daylight saving time (DST) zone names. ! offset ! is of the form `[-]hh:[mm[:ss]]' and specifies the ! offset west of UTC. The default DST offset is one hour ! ahead of standard time. ! date[/time],date[/time] ! specifies the beginning and end of DST. If this is absent, ! the system supplies its own rules for DST, and these can ! differ from year to year; typically US DST rules are used. ! time ! takes the form `hh:[mm[:ss]]' and defaults to 02:00. ! date ! takes one of the following forms: ! Jn (1<=n<=365) ! origin-1 day number not counting February 29 ! n (0<=n<=365) ! origin-0 day number counting February 29 if present ! Mm.n.d (0[Sunday]<=d<=6[Saturday], 1<=n<=5, 1<=m<=12) ! for the dth day of week n of month m of the year, ! where week 1 is the first week in which day d appears, ! and `5' stands for the last week in which day d appears ! (which may be either the 4th or 5th week). ! ! * In POSIX.1, when a TZ value like "EST5EDT" is parsed, ! typically the current US DST rules are used, ! but this means that the US DST rules are compiled into each program ! that does time conversion. This means that when US time conversion rules change (as in the United States in 1987), all programs that do time conversion must be recompiled to ensure proper results. ! * In POSIX.1, there's no tamper-proof way for a process to learn the system's best idea of local wall clock. (This is important for applications that an administrator wants used only at certain times-- without regard to whether the user has fiddled the "TZ" environment variable. While an administrator can "do everything in GMT" to get around the problem, doing so is inconvenient and precludes handling ! daylight saving time shifts--as might be required to limit phone calls to off-peak hours.) ! * POSIX.1 requires that systems ignore leap seconds. ! These are the extensions that have been made to the POSIX.1 functions: * The "TZ" environment variable is used in generating the name of a file from which time zone information is read (or is interpreted a la *************** *** 62,74 **** * To handle places where more than two time zone abbreviations are used, the functions "localtime" and "gmtime" set tzname[tmp->tm_isdst] (where "tmp" is the value the function returns) to the time zone ! abbreviation to be used. This differs from SVR2, where the elements of tzname are only changed as a result of calls to tzset. * Since the "TZ" environment variable can now be used to control time conversion, the "daylight" and "timezone" variables are no longer ! needed or supported. (You can use a compile-time option to cause ! these variables to be defined and to be set by "tzset"; however, their values will not be used by "localtime.") * The "localtime" function has been set up to deliver correct results --- 106,117 ---- * To handle places where more than two time zone abbreviations are used, the functions "localtime" and "gmtime" set tzname[tmp->tm_isdst] (where "tmp" is the value the function returns) to the time zone ! abbreviation to be used. This differs from POSIX.1, where the elements of tzname are only changed as a result of calls to tzset. * Since the "TZ" environment variable can now be used to control time conversion, the "daylight" and "timezone" variables are no longer ! needed. (These variables are defined and set by "tzset"; however, their values will not be used by "localtime.") * The "localtime" function has been set up to deliver correct results *************** *** 86,94 **** environment variable; portable applications should not, however, rely on this behavior since it's not the way SVR2 systems behave.) ! Points of interest to folks with Version 7 or BSD systems: ! * The BSD "timezone" function is not present in this package; it's impossible to reliably map timezone's arguments (a "minutes west of GMT" value and a "daylight saving time in effect" flag) to a time zone abbreviation, and we refuse to guess. --- 129,149 ---- environment variable; portable applications should not, however, rely on this behavior since it's not the way SVR2 systems behave.) ! * These functions can account for leap seconds, thanks to Bradley White ! (bww@k.cs.cmu.edu). ! ! Points of interest to folks with other systems: ! ! * This package is already part of many POSIX-compliant hosts, ! including BSD, HP, Linux, Network Appliance, SCO, SGI, and Sun. ! On such hosts, the primary use of this package ! is to update obsolete time zone rule tables. ! To do this, you may need to compile the time zone compiler ! `zic' supplied with this package instead of using the system `zic', ! since the format of zic's input changed slightly in late 1994, ! and many vendors still do not support the new input format. ! * The Unix Version 7 "timezone" function is not present in this package; it's impossible to reliably map timezone's arguments (a "minutes west of GMT" value and a "daylight saving time in effect" flag) to a time zone abbreviation, and we refuse to guess. *************** *** 97,108 **** zone abbreviation to use. Alternatively, use localtime(&clock)->tm_zone if this has been enabled. ! * The BSD gettimeofday function is not used in this package; ! this lets users control the time zone used in doing time conversions. ! Users who don't try to control things (that is, users who do not set ! the environment variable TZ) get the time conversion specified in the ! file "/etc/zoneinfo/localtime"; see the time zone compiler writeup for ! information on how to initialize this file. The functions that are conditionally compiled if STD_INSPIRED is defined should, at this point, be looked on primarily as food for thought. They are --- 152,164 ---- zone abbreviation to use. Alternatively, use localtime(&clock)->tm_zone if this has been enabled. ! * The 4.2BSD gettimeofday function is not used in this package. ! This formerly let users obtain the current UTC offset and DST flag, ! but this functionality was removed in later versions of BSD. ! ! * In SVR2, time conversion fails for near-minimum or near-maximum ! time_t values when doing conversions for places that don't use GMT. ! This package takes care to do these conversions correctly. The functions that are conditionally compiled if STD_INSPIRED is defined should, at this point, be looked on primarily as food for thought. They are *************** *** 115,120 **** beyond those provided here. The absence of such functions from this package is not meant to discourage the development, standardization, or use of such functions. Rather, their absence reflects the decision to make this package ! close to SVR2 (with the exceptions outlined above) to ensure its broad acceptability. If more powerful time conversion functions can be standardized, so much the better. --- 171,285 ---- beyond those provided here. The absence of such functions from this package is not meant to discourage the development, standardization, or use of such functions. Rather, their absence reflects the decision to make this package ! contain valid extensions to POSIX.1, to ensure its broad acceptability. If more powerful time conversion functions can be standardized, so much the better. + + + ----- Names of time zone rule files ----- + + The names of this package's installed time zone rule files are chosen to + help minimize possible future incompatibilities due to political events. + Ordinarily, names of countries are not used, to avoid incompatibilities + when countries change their name (e.g. Zaire->Congo) or + when locations change countries (e.g. Hong Kong from UK colony to China). + + Names normally have the form AREA/LOCATION, where AREA is the name + of a continent or ocean, and LOCATION is the name of a specific + location within that region. North and South America share the same + area, `America'. Typical names are `Africa/Cairo', `America/New_York', + and `Pacific/Honolulu'. + + Here are the general rules used for choosing location names, + in decreasing order of importance: + + Use only valid Posix file names. Use only Ascii letters, digits, `.', + `-' and `_'. Do not exceed 14 characters or start with `-'. + E.g. prefer `Brunei' to `Bandar_Seri_Begawan'. + Include at least one location per time zone rule set per country. + One such location is enough. + If all the clocks in a country's region have agreed since 1970, + don't bother to include more than one location + even if subregions' clocks disagreed before 1970. + Otherwise these tables would become annoyingly large. + If a name is ambiguous, use a less ambiguous alternative; + e.g. many cities are named San Jose and Georgetown, so + prefer `Costa_Rica' to `San_Jose' and `Guyana' to `Georgetown'. + Keep locations compact. Use cities or small islands, not countries + or regions, so that any future time zone changes do not split + locations into different time zones. E.g. prefer `Paris' + to `France', since France has had multiple time zones. + Use traditional English spelling, e.g. prefer `Rome' to `Roma', and + prefer `Athens' to the true name (which uses Greek letters). + The Posix file name restrictions encourage this rule. + Use the most populous among locations in a country's time zone, + e.g. prefer `Shanghai' to `Beijing'. Among locations with + similar populations, pick the best-known location, + e.g. prefer `Rome' to `Milan'. + Use the singular form, e.g. prefer `Canary' to `Canaries'. + Omit common suffixes like `_Islands' and `_City', unless that + would lead to ambiguity. E.g. prefer `Cayman' to + `Cayman_Islands' and `Guatemala' to `Guatemala_City', + but prefer `Mexico_City' to `Mexico' because the country + of Mexico has several time zones. + Use `_' to represent a space. + Omit `.' from abbreviations in names, e.g. prefer `St_Helena' + to `St._Helena'. + + The file `zone.tab' lists the geographical locations used to name + time zone rule files. + + Older versions of this package used a different naming scheme, + and these older names are still supported. + See the file `backwards' for most of these older names + (e.g. `US/Eastern' instead of `America/New_York'). + The other old-fashioned names still supported are + `WET', `CET', `MET', `EET' (see the file `europe'), + and `Factory' (see the file `factory'). + + + ----- Time zone abbreviations ----- + + When this package is installed, it generates time zone abbreviations + like `EST' to be compatible with human tradition and POSIX.1. + Here are the general rules used for choosing time zone abbreviations, + in decreasing order of importance: + + Use abbreviations that consist of 3 or more upper-case Ascii letters, + except use "___" for locations while uninhabited. + Posix.1 requires at least 3 characters, and the restriction to + upper-case Ascii letters follows most traditions. + Previous editions of this database also used characters like + ' ' and '?', but these characters have a special meaning to + the shell and cause commands like + set `date` + to have unexpected effects. In theory, the character set could + be !%./@A-Z^_a-z{}, but these tables use only upper-case + Ascii letters (and "___"). + Use abbreviations that are in common use among English-speakers, + e.g. `EST' for Eastern Standard Time in North America. + We assume that applications translate them to other languages + as part of the normal localization process; for example, + a French application might translate `EST' to `HNE'. + For zones whose times are taken from a city's longitude, use the + traditional xMT notation, e.g. `PMT' for Paris Mean Time. + The only name like this in current use is `GMT'. + If there is no common English abbreviation, abbreviate the English + translation of the usual phrase used by native speakers. + If this is not available or is a phrase mentioning the country + (e.g. ``Cape Verde Time''), then: + + When a country has a single or principal time zone region, + append `T' to the country's ISO code, e.g. `CVT' for + Cape Verde Time. For summer time append `ST'; + for double summer time append `DST'; etc. + When a country has multiple time zones, take the first three + letters of an English place name identifying each zone + and then append `T', `ST', etc. as before; + e.g. `VLAST' for VLAdivostok Summer Time. + + Application writers should note that these abbreviations are ambiguous + in practice: e.g. `EST' has a different meaning in Australia than + it does in the United States. In new applications, it's often better + to use numeric GMT offsets like `-0500' instead of time zone + abbreviations like `EST'; this avoids the ambiguity. =================================================================== RCS file: RCS/africa,v retrieving revision 1997.7 retrieving revision 1997.7.0.1 diff -c -r1997.7 -r1997.7.0.1 *** africa 1997/07/19 17:14:55 1997.7 --- africa 1997/08/29 08:34:24 1997.7.0.1 *************** *** 27,111 **** # Derek Howse, Greenwich time and the discovery of the longitude, # Oxford University Press (1980). # - # I added so many Zone names that the old, mostly flat name space was unwieldy. - # So I renamed the Zones to have the form AREA/LOCATION, where - # AREA is the name of a continent or ocean, and - # LOCATION is the name of a specific location within that region. - # For example, the old zone name `Egypt' is now `Africa/Cairo'. - # - # Here are the general rules I used for choosing location names, - # in decreasing order of importance: - # - # Use only valid Posix file names. Use only Ascii letters, digits, `.', - # `-' and `_'. Do not exceed 14 characters or start with `-'. - # E.g. prefer `Brunei' to `Bandar_Seri_Begawan'. - # Include at least one location per time zone rule set per country. - # One such location is enough. - # If all the clocks in a country's region have agreed since 1970, - # don't bother to include more than one location - # even if subregions' clocks disagreed before 1970. - # Otherwise these tables would become annoyingly large. - # If a name is ambiguous, use a less ambiguous alternative; - # e.g. many cities are named San Jose and Georgetown, so - # prefer `Costa_Rica' to `San_Jose' and `Guyana' to `Georgetown'. - # Keep locations compact. Use cities or small islands, not countries - # or regions, so that any future time zone changes do not split - # locations into different time zones. E.g. prefer `Paris' - # to `France', since France has had multiple time zones. - # Use traditional English spelling, e.g. prefer `Rome' to `Roma', and - # prefer `Athens' to the true name (which uses Greek letters). - # The Posix file name restrictions encourage this rule. - # Use the most populous among locations in a country's time zone, - # e.g. prefer `Shanghai' to `Beijing'. Among locations with - # similar populations, pick the best-known location, - # e.g. prefer `Rome' to `Milan'. - # Use the singular form, e.g. prefer `Canary' to `Canaries'. - # Omit common suffixes like `_Islands' and `_City', unless that - # would lead to ambiguity. E.g. prefer `Cayman' to - # `Cayman_Islands' and `Guatemala' to `Guatemala_City', - # but prefer `Mexico_City' to `Mexico' because the country - # of Mexico has several time zones. - # Use `_' to represent a space. - # Omit `.' from abbreviations in names, e.g. prefer `St_Helena' - # to `St._Helena'. - # - # For time zone abbreviations like `EST' I used the following rules, - # in decreasing order of importance: - # - # Use abbreviations that consist of 3 or more upper-case Ascii letters, - # except use "___" for locations while uninhabited. - # Posix.1 requires at least 3 characters, and the restriction to - # upper-case Ascii letters follows most traditions. - # Previous editions of this database also used characters like - # ' ' and '?', but these characters have a special meaning to - # the shell and cause commands like - # set `date` - # to have unexpected effects. In theory, the character set could - # be !%./@A-Z^_a-z{}, but these tables use only upper-case - # Ascii letters (and "___"). - # Use abbreviations that are in common use among English-speakers, - # e.g. `EST' for Eastern Standard Time in North America. - # We assume that applications translate them to other languages - # as part of the normal localization process; for example, - # a French application might translate `EST' to `HNE'. - # For zones whose times are taken from a city's longitude, use the - # traditional xMT notation, e.g. `PMT' for Paris Mean Time. - # The only name like this in current use is `GMT'. - # If there is no common English abbreviation, abbreviate the English - # translation of the usual phrase used by native speakers. - # If this is not available or is a phrase mentioning the country - # (e.g. ``Cape Verde Time''), then: - # - # When a country has a single or principal time zone region, - # append `T' to the country's ISO code, e.g. `CVT' for - # Cape Verde Time. For summer time append `ST'; - # for double summer time append `DST'; etc. - # When a country has multiple time zones, take the first three - # letters of an English place name identifying each zone - # and then append `T', `ST', etc. as before; - # e.g. `MOSST' for MOScow Summer Time. - # - # # For Africa I invented the following time zone abbreviations. # LMT Local Mean Time # -1:00 AAT Atlantic Africa Time (no longer used) --- 27,32 ---- =================================================================== RCS file: RCS/europe,v retrieving revision 1997.7 retrieving revision 1997.7.0.1 diff -c -r1997.7 -r1997.7.0.1 *** europe 1997/07/19 17:14:57 1997.7 --- europe 1997/08/29 08:34:24 1997.7.0.1 *************** *** 630,647 **** # came into force on 16 November. It restates the dates from the EC # seventh Summer Time Directive.... # ! # From Peter Ilieve <peter@aldie.co.uk> (1997-03-28): ! # The [European] Transport Council discussed the proposed Eighth Directive ! # on 11 March and agreed [to] it, so it moves forward to the next stage, ! # from a Commission proposal to a Common Position.... What this means is: ! # ! # - The eighth directive proposal rules have been accepted. ! # These are the same as the current rules (last Sunday in March and last ! # Sunday in October). The rules will run until 2001. ! # ! # - The French have had their request to abandon summer time turned down. ! # They have been promised some sort of review in 1999 which might change ! # the rules for 2000 and 2001. # From Peter Ilieve <peter@memex.co.uk> (1994-03-28): # The [GB-Eire] end date of 22 October [1995] conflicts with your current rule --- 630,647 ---- # came into force on 16 November. It restates the dates from the EC # seventh Summer Time Directive.... # ! # From Peter Ilieve <peter@aldie.co.uk> (1997-08-06): ! # I now have a copy of the ... Eighth Directive 97/44/EC of the European ! # Parliament and of the Council of 22 July 1997 on summer-time arrangements. ! # It runs for 4 years, 1998--2001, and confirms the current rules of ! # last Sunday in March to last Sunday in October.... ! # The directive does not apply in overseas territories of the Member States. ! # It says the Commission should produce a proposal for 2002 and beyond ! # by 1 Jan 2000 and this should be adopted by 1 Jan 2001. I doubt that ! # this will happen though.... ! # There is no mention of the French desire to abandon the whole idea. ! # France has had a change of government recently so maybe it will ! # be quietly dropped. # From Peter Ilieve <peter@memex.co.uk> (1994-03-28): # The [GB-Eire] end date of 22 October [1995] conflicts with your current rule *************** *** 667,678 **** # Also, for lack of other data, we'll follow Shanks for Eire in 1940-1948. # # Given Peter Ilieve's comments, the following claims by Shanks are incorrect: ! # * Wales did not switch from GMT to daylight savings time until # 1921 Apr 3, when they began to conform with the rest of Great Britain. # Actually, Wales was identical after 1880. # * Eire had two transitions on 1916 Oct 1. # It actually just had one transition. ! # * Northern Ireland used single daylight savings time throughout WW II. # Actually, it conformed to Britain. # * GB-Eire changed standard time to 1 hour ahead of GMT on 1968-02-18. # Actually, that date saw the usual switch to summer time. --- 667,678 ---- # Also, for lack of other data, we'll follow Shanks for Eire in 1940-1948. # # Given Peter Ilieve's comments, the following claims by Shanks are incorrect: ! # * Wales did not switch from GMT to daylight saving time until # 1921 Apr 3, when they began to conform with the rest of Great Britain. # Actually, Wales was identical after 1880. # * Eire had two transitions on 1916 Oct 1. # It actually just had one transition. ! # * Northern Ireland used single daylight saving time throughout WW II. # Actually, it conformed to Britain. # * GB-Eire changed standard time to 1 hour ahead of GMT on 1968-02-18. # Actually, that date saw the usual switch to summer time. *************** *** 681,687 **** # The following claims by Shanks are possible though doubtful; # we'll ignore them for now. # * Jersey, Guernsey, and the Isle of Man did not switch from GMT ! # to daylight savings time until 1921 Apr 3, when they began to # conform with Great Britain. # * Dublin's 1971-10-31 switch was at 02:00, even though London's was 03:00. # --- 681,687 ---- # The following claims by Shanks are possible though doubtful; # we'll ignore them for now. # * Jersey, Guernsey, and the Isle of Man did not switch from GMT ! # to daylight saving time until 1921 Apr 3, when they began to # conform with Great Britain. # * Dublin's 1971-10-31 switch was at 02:00, even though London's was 03:00. # *************** *** 1047,1053 **** 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s ! 1:00 - CET 1982 Oct 11 1:00 EU CE%sT # Bulgaria --- 1047,1053 ---- 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s ! 1:00 - CET 1982 Nov 27 1:00 EU CE%sT # Bulgaria *************** *** 1073,1079 **** 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s ! 1:00 - CET 1982 Oct 11 1:00 EU CE%sT # Czech Republic --- 1073,1079 ---- 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s ! 1:00 - CET 1982 Nov 27 1:00 EU CE%sT # Czech Republic *************** *** 1572,1578 **** 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s ! 1:00 - CET 1982 Oct 11 1:00 EU CE%sT # Malta --- 1572,1578 ---- 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s ! 1:00 - CET 1982 Nov 27 1:00 EU CE%sT # Malta *************** *** 1968,1974 **** 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s ! 1:00 - CET 1982 Oct 11 1:00 EU CE%sT # Spain --- 1968,1974 ---- 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s ! 1:00 - CET 1982 Nov 27 1:00 EU CE%sT # Spain *************** *** 2209,2217 **** 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s # Metod Kozelj <metod.kozelj@rzs-hm.si> reports that the legal date of ! # transition to EU rules was 1982-10-11, for all of Yugoslavia at the time. # Shanks doesn't give as much detail, so go with Kozelj. ! 1:00 - CET 1982 Oct 11 1:00 EU CE%sT ############################################################################### --- 2209,2217 ---- 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s # Metod Kozelj <metod.kozelj@rzs-hm.si> reports that the legal date of ! # transition to EU rules was 1982-11-27, for all of Yugoslavia at the time. # Shanks doesn't give as much detail, so go with Kozelj. ! 1:00 - CET 1982 Nov 27 1:00 EU CE%sT ############################################################################### =================================================================== RCS file: RCS/northamerica,v retrieving revision 1997.5 retrieving revision 1997.5.0.1 diff -c -r1997.5 -r1997.5.0.1 *** northamerica 1997/03/29 17:48:52 1997.5 --- northamerica 1997/08/29 08:34:24 1997.5.0.1 *************** *** 1249,1256 **** -4:00 - AST # Montserrat # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Plymouth -4:00 - AST # Nicaragua --- 1249,1259 ---- -4:00 - AST # Montserrat + # From Paul Eggert (1997-08-29): + # Recent volcanic eruptions have forced evacuation of Plymouth, the capital. + # 4:08 is a guess at the longitude of Olveston, the current de facto capital. # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Montserrat -4:08 - LMT 1911 Jul 1 0:01 # Olveston -4:00 - AST # Nicaragua =================================================================== RCS file: RCS/southamerica,v retrieving revision 1997.5 retrieving revision 1997.5.0.1 diff -c -r1997.5 -r1997.5.0.1 *** southamerica 1997/03/29 17:48:52 1997.5 --- southamerica 1997/08/29 08:34:24 1997.5.0.1 *************** *** 533,539 **** Rule Uruguay 1989 only - Oct 29 0:00 1:00 S Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S ! Rule Uruguay 1992 1993 - Oct Sun>=15 0:00 1:00 S Rule Uruguay 1993 only - Feb 28 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 --- 533,541 ---- Rule Uruguay 1989 only - Oct 29 0:00 1:00 S Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S ! # Shanks's 4th edition (1995) says no DST was observed in 1990/1 and 1991/2, ! # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. ! Rule Uruguay 1992 only - Oct 18 0:00 1:00 S Rule Uruguay 1993 only - Feb 28 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28