| # Copyright (C) 2016 and later: Unicode, Inc. and others. |
| # License & terms of use: http://www.unicode.org/copyright.html |
| ###################################################################### |
| # Copyright (C) 2007-2014, International Business Machines |
| # Corporation and others. All Rights Reserved. |
| ###################################################################### |
| # This is an ICU-specific file with the same format as regular |
| # tzdata time zone files, for consistent parsing by the tools that |
| # turn "Olson" tzdata into ICU's zoneinfo.txt. |
| # The purpose of this file is to give ICU a superset of the time zones |
| # that are in CLDR and also include legacy ICU time zones originally |
| # in tz.alias for rataining backward compatibility. |
| |
| # Add Etc/Unknown, defined by CLDR. Give it Etc/GMT behavior. |
| |
| # Zone NAME GMTOFF RULES FORMAT |
| Zone Etc/Unknown 0 - Unknown |
| |
| # SystemV time zones. |
| # The Olson systemv file has these commented out. |
| |
| # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] |
| Zone SystemV/AST4ADT -4:00 SystemV A%sT |
| Zone SystemV/EST5EDT -5:00 SystemV E%sT |
| Zone SystemV/CST6CDT -6:00 SystemV C%sT |
| Zone SystemV/MST7MDT -7:00 SystemV M%sT |
| Zone SystemV/PST8PDT -8:00 SystemV P%sT |
| Zone SystemV/YST9YDT -9:00 SystemV Y%sT |
| Zone SystemV/AST4 -4:00 - AST |
| Zone SystemV/EST5 -5:00 - EST |
| Zone SystemV/CST6 -6:00 - CST |
| Zone SystemV/MST7 -7:00 - MST |
| Zone SystemV/PST8 -8:00 - PST |
| Zone SystemV/YST9 -9:00 - YST |
| Zone SystemV/HST10 -10:00 - HST |
| |
| |
| # The list below is for supporting legacy ICU zone aliases. |
| # These definitions were originally defined in tz.alias. |
| |
| #### Aliases that conflict with Olson compatibility Zone definition |
| |
| Link Australia/Darwin ACT |
| Link Australia/Sydney AET |
| Link America/Argentina/Buenos_Aires AGT |
| Link Africa/Cairo ART |
| Link America/Anchorage AST |
| Link America/Sao_Paulo BET |
| Link Asia/Dhaka BST |
| Link Africa/Maputo CAT |
| Link America/St_Johns CNT |
| Link America/Chicago CST |
| Link Asia/Shanghai CTT |
| Link Africa/Addis_Ababa EAT |
| Link Europe/Paris ECT |
| #Link Europe/Istanbul EET # EET is a standard UNIX zone |
| ####Link EST America/New_York EST # Defined as -05:00 |
| ####Link Pacific/Honolulu HST # Defined as -10:00 |
| Link America/Indiana/Indianapolis IET |
| Link Asia/Kolkata IST |
| Link Asia/Tokyo JST |
| #Link Asia/Tehran MET # MET is a standard UNIX zone |
| Link Pacific/Apia MIT |
| ####Link America/Denver MST # Defined as -07:00 |
| Link Asia/Yerevan NET |
| Link Pacific/Auckland NST |
| Link Asia/Karachi PLT |
| Link America/Phoenix PNT |
| Link America/Puerto_Rico PRT |
| Link America/Los_Angeles PST |
| Link Pacific/Guadalcanal SST |
| #Link Etc/UTC UTC # Olson LINK |
| Link Asia/Ho_Chi_Minh VST |
| |
| # |
| # Aliases already dropped from the TZ database. |
| # ICU may also remove these aliases. |
| # |
| Link America/Regina Canada/East-Saskatchewan # removed from backward in 2017c |
| |
| |
| # Note: |
| # Following section was added for tz database 2018a and 2018b. |
| # ICU has a bug handling negative DST, and we also don't want to |
| # flip sumer time name and winter time name for Dublin at least for |
| # now. Because the change had major impacts to tz database external |
| # consumers, the tz database maintainer once reverted the Europe/Dublin |
| # rules (same as 2017c or older) in 2018c. The tz database maintainer |
| # thinks the changes in 2018a should be brought back when external |
| # tz database consumers are ready to adopt the change. We don't know |
| # what CLDR TC want to do with this for now. But if tz database brings |
| # back the change, and CLDR TC (and ICU TC) want to keep the display name |
| # unchanged, then we can uncomment the block below to restore ICU |
| # custom override. (Yoshito 2018-01-23) |
| |
| # |
| # tzdata2018a changed Europe/Dublin to use IST (UTC+1) as the standard time |
| # of the region, and GMT (UTC) as the daylight saving time with negative |
| # offset (-1 hour) in winter. ICU SimpleTimeZone rejects a zone with negative |
| # daylight saving time offset. We could remove the restriction in newer version |
| # of ICU, but such data does not work well with older ICU runtime without |
| # fixing the issue. For now, we define our own Europe/Dubin in ICU, replacing |
| # Europe/Dublin data from the tz database. |
| # |
| |
| # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
| # Rule Eire--ICU 1971 only - Oct 31 2:00u 0 GMT |
| # Rule Eire--ICU 1972 1980 - Mar Sun>=16 2:00u 1:00 IST |
| # Rule Eire--ICU 1972 1980 - Oct Sun>=23 2:00u 0 GMT |
| # Rule Eire--ICU 1981 max - Mar lastSun 1:00u 1:00 IST |
| # Rule Eire--ICU 1981 1989 - Oct Sun>=23 1:00u 0 GMT |
| # Rule Eire--ICU 1990 1995 - Oct Sun>=22 1:00u 0 GMT |
| # Rule Eire--ICU 1996 max - Oct lastSun 1:00u 0 GMT |
| |
| # Zone NAME GMTOFF RULES FORMAT [UNTIL] |
| # Zone Europe/Dublin--ICU -0:25:00 - LMT 1880 Aug 2 |
| # -0:25:21 - DMT 1916 May 21 2:00s |
| # -0:25:21 1:00 IST 1916 Oct 1 2:00s |
| # 0:00 GB-Eire %s 1921 Dec 6 # independence |
| # 0:00 GB-Eire GMT/IST 1940 Feb 25 2:00s |
| # 0:00 1:00 IST 1946 Oct 6 2:00s |
| # 0:00 - GMT 1947 Mar 16 2:00s |
| # 0:00 1:00 IST 1947 Nov 2 2:00s |
| # 0:00 - GMT 1948 Apr 18 2:00s |
| # 0:00 GB-Eire GMT/IST 1968 Oct 27 |
| # 0:00 Eire--ICU GMT/IST |
| |
| # Link Europe/Dublin--ICU Eire--ICU |
| |
