1 # Copyright (C) 2016 and later: Unicode, Inc. and others. 2 # License & terms of use: http://www.unicode.org/copyright.html 3 ###################################################################### 4 # Copyright (C) 2007-2014, International Business Machines 5 # Corporation and others. All Rights Reserved. 6 ###################################################################### 7 # This is an ICU-specific file with the same format as regular 8 # tzdata time zone files, for consistent parsing by the tools that 9 # turn "Olson" tzdata into ICU's zoneinfo.txt. 10 # The purpose of this file is to give ICU a superset of the time zones 11 # that are in CLDR and also include legacy ICU time zones originally 12 # in tz.alias for rataining backward compatibility. 13 14 # Add Etc/Unknown, defined by CLDR. Give it Etc/GMT behavior. 15 16 # Zone NAME GMTOFF RULES FORMAT 17 Zone Etc/Unknown 0 - Unknown 18 19 # SystemV time zones. 20 # The Olson systemv file has these commented out. 21 22 # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] 23 Zone SystemV/AST4ADT -4:00 SystemV A%sT 24 Zone SystemV/EST5EDT -5:00 SystemV E%sT 25 Zone SystemV/CST6CDT -6:00 SystemV C%sT 26 Zone SystemV/MST7MDT -7:00 SystemV M%sT 27 Zone SystemV/PST8PDT -8:00 SystemV P%sT 28 Zone SystemV/YST9YDT -9:00 SystemV Y%sT 29 Zone SystemV/AST4 -4:00 - AST 30 Zone SystemV/EST5 -5:00 - EST 31 Zone SystemV/CST6 -6:00 - CST 32 Zone SystemV/MST7 -7:00 - MST 33 Zone SystemV/PST8 -8:00 - PST 34 Zone SystemV/YST9 -9:00 - YST 35 Zone SystemV/HST10 -10:00 - HST 36 37 38 # The list below is for supporting legacy ICU zone aliases. 39 # These definitions were originally defined in tz.alias. 40 41 #### Aliases that conflict with Olson compatibility Zone definition 42 43 Link Australia/Darwin ACT 44 Link Australia/Sydney AET 45 Link America/Argentina/Buenos_Aires AGT 46 Link Africa/Cairo ART 47 Link America/Anchorage AST 48 Link America/Sao_Paulo BET 49 Link Asia/Dhaka BST 50 Link Africa/Maputo CAT 51 Link America/St_Johns CNT 52 Link America/Chicago CST 53 Link Asia/Shanghai CTT 54 Link Africa/Addis_Ababa EAT 55 Link Europe/Paris ECT 56 #Link Europe/Istanbul EET # EET is a standard UNIX zone 57 ####Link EST America/New_York EST # Defined as -05:00 58 ####Link Pacific/Honolulu HST # Defined as -10:00 59 Link America/Indiana/Indianapolis IET 60 Link Asia/Kolkata IST 61 Link Asia/Tokyo JST 62 #Link Asia/Tehran MET # MET is a standard UNIX zone 63 Link Pacific/Apia MIT 64 ####Link America/Denver MST # Defined as -07:00 65 Link Asia/Yerevan NET 66 Link Pacific/Auckland NST 67 Link Asia/Karachi PLT 68 Link America/Phoenix PNT 69 Link America/Puerto_Rico PRT 70 Link America/Los_Angeles PST 71 Link Pacific/Guadalcanal SST 72 #Link Etc/UTC UTC # Olson LINK 73 Link Asia/Ho_Chi_Minh VST 74 75 # 76 # Aliases already dropped from the TZ database. 77 # ICU may also remove these aliases. 78 # 79 Link America/Regina Canada/East-Saskatchewan # removed from backward in 2017c 80 81 82 # Note: 83 # Following section was added for tz database 2018a and 2018b. 84 # ICU has a bug handling negative DST, and we also don't want to 85 # flip sumer time name and winter time name for Dublin at least for 86 # now. Because the change had major impacts to tz database external 87 # consumers, the tz database maintainer once reverted the Europe/Dublin 88 # rules (same as 2017c or older) in 2018c. The tz database maintainer 89 # thinks the changes in 2018a should be brought back when external 90 # tz database consumers are ready to adopt the change. We don't know 91 # what CLDR TC want to do with this for now. But if tz database brings 92 # back the change, and CLDR TC (and ICU TC) want to keep the display name 93 # unchanged, then we can uncomment the block below to restore ICU 94 # custom override. (Yoshito 2018-01-23) 95 96 # 97 # tzdata2018a changed Europe/Dublin to use IST (UTC+1) as the standard time 98 # of the region, and GMT (UTC) as the daylight saving time with negative 99 # offset (-1 hour) in winter. ICU SimpleTimeZone rejects a zone with negative 100 # daylight saving time offset. We could remove the restriction in newer version 101 # of ICU, but such data does not work well with older ICU runtime without 102 # fixing the issue. For now, we define our own Europe/Dubin in ICU, replacing 103 # Europe/Dublin data from the tz database. 104 # 105 106 # 107 # tzdata2018e suggests to use alternative zone definitions for use GB-Eire 108 # and EU rule after Oct 27, 1968. (Yoshito 2018-05-04) 109 # 110 111 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 112 Zone Europe/Dublin--ICU -0:25:00 - LMT 1880 Aug 2 113 -0:25:21 - DMT 1916 May 21 2:00s 114 -0:25:21 1:00 IST 1916 Oct 1 2:00s 115 0:00 GB-Eire %s 1921 Dec 6 # independence 116 0:00 GB-Eire GMT/IST 1940 Feb 25 2:00s 117 0:00 1:00 IST 1946 Oct 6 2:00s 118 0:00 - GMT 1947 Mar 16 2:00s 119 0:00 1:00 IST 1947 Nov 2 2:00s 120 0:00 - GMT 1948 Apr 18 2:00s 121 0:00 GB-Eire GMT/IST 1968 Oct 27 122 # The next line is for when negative SAVE values are used. 123 # 1:00 Eire IST/GMT 124 # These three lines are for when SAVE values are always nonnegative. 125 1:00 - IST 1971 Oct 31 2:00u 126 0:00 GB-Eire GMT/IST 1996 127 0:00 EU GMT/IST 128 129 Link Europe/Dublin--ICU Eire--ICU 130 131 132 # 133 # tzdata2018e also added another instance of negative DST to 134 # Europe/Prague and Africa/Windhoek 135 # 136 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 137 Zone Europe/Prague--ICU 0:57:44 - LMT 1850 138 0:57:44 - PMT 1891 Oct # Prague Mean Time 139 1:00 C-Eur CE%sT 1945 May 9 140 1:00 Czech CE%sT 1946 Dec 1 3:00 141 # Vanguard section, for zic and other parsers that support negative DST. 142 # 1:00 -1:00 GMT 1947 Feb 23 2:00 143 # Rearguard section, for parsers that do not support negative DST. 144 0:00 - GMT 1947 Feb 23 2:00 145 # End of rearguard section. 146 1:00 Czech CE%sT 1979 147 1:00 EU CE%sT 148 149 # Slovakia 150 Link Europe/Prague--ICU Europe/Bratislava--ICU 151 152 # RULE NAME FROM TO TYPE IN ON AT SAVE LETTER/S 153 # Vanguard section, for zic and other parsers that support negative DST. 154 #Rule Namibia 1994 only - Mar 21 0:00 -1:00 WAT 155 #Rule Namibia 1994 2017 - Sep Sun>=1 2:00 0 CAT 156 #Rule Namibia 1995 2017 - Apr Sun>=1 2:00 -1:00 WAT 157 # Rearguard section, for parsers that do not support negative DST. 158 Rule Namibia--ICU 1994 only - Mar 21 0:00 0 WAT 159 Rule Namibia--ICU 1994 2017 - Sep Sun>=1 2:00 1:00 CAT 160 Rule Namibia--ICU 1995 2017 - Apr Sun>=1 2:00 0 WAT 161 162 # Zone NAME GMTOFF RULES FORMAT [UNTIL] 163 Zone Africa/Windhoek--ICU 1:08:24 - LMT 1892 Feb 8 164 1:30 - +0130 1903 Mar 165 2:00 - SAST 1942 Sep 20 2:00 166 2:00 1:00 SAST 1943 Mar 21 2:00 167 2:00 - SAST 1990 Mar 21 # independence 168 # Vanguard section, for zic and other parsers that support negative DST. 169 # 2:00 Namibia %s 170 # Rearguard section, for parsers that do not support negative DST. 171 2:00 - CAT 1994 Mar 21 0:00 172 # From Paul Eggert (2017-04-07): 173 # The official date of the 2017 rule change was 2017-10-24. See: 174 # http://www.lac.org.na/laws/annoSTAT/Namibian%20Time%20Act%209%20of%202017.pdf 175 1:00 Namibia--ICU %s 2017 Oct 24 176 2:00 - CAT 177 # End of rearguard section. 178
