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| | {{IANA time zone database}} |
| == Abbreviations == | | == Abbreviations == |
| * proposal to change to [[Internationalized time point unique time zone abbreviations]] at http://mm.icann.org/pipermail/tz/2012-October/018362.html
| | [[IANA time zone database - time zone acronyms]] |
|
| |
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| | == Bugs == |
| | [[IANA time zone database - bugs]] |
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| |
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| === Special abbreviations === | | ==Zone terminology== |
| * LMT - local mean time
| | ---- |
| | Guy Harris 2013-09-18 23:37:48 http://mm.icann.org/pipermail/tz/2013-September/020284.html |
|
| |
|
| === Non-location specific meaning ===
| | So I prefer terms such as "tzdb zone" to refer to those things that have tzids. I'm not wedded to *that* term, but there should be *some* term other than "time zone" for that. |
| {| class="wikitable"
| |
| ! position from right
| |
| ! Letter
| |
| ! Meaning
| |
| ! Offset mark?
| |
| ! Occurrence
| |
| |-
| |
| | 1
| |
| | T
| |
| | Time
| |
| | N/A
| |
| | always
| |
| |-
| |
| | 2
| |
| | D
| |
| | Daylight (Saving)
| |
| | 1:00
| |
| | several
| |
| |-
| |
| | 2
| |
| | S
| |
| | Standard
| |
| | N/A
| |
| | several
| |
| |-
| |
| | 2
| |
| | S
| |
| | Summer
| |
| | 1:00
| |
| | europe file: e.g. BST British Summer Time, CEST Central European Summer Time
| |
| |-
| |
| | 2
| |
| | W
| |
| | War
| |
| | 1:00
| |
| | northamerica file: US and Mexico
| |
| |-
| |
| | 2
| |
| | P
| |
| | Peace
| |
| | 1:00
| |
| | northamerica file: US
| |
| |-
| |
| | 2
| |
| | M
| |
| | Mean
| |
| | N/A
| |
| |
| |
| * africa file: LMT # Lisbon Mean Time, FMT # Freetown Mean Time, PMT # Paris Mean Time | |
| * europe file: MMT # Moscow Mean Time | |
| * southamerica file: CMT # Cordoba Mean Time, CMT # Calamarca MT(!), QMT # Quito Mean Time, BMT # Bogota Mean Time, SMT # Stanley Mean Time, SMT # Santiago Mean Time, MMT # Montevideo MT(!), PMT # Paramaribo Mean Time, CMT # Caracas Mean Time | |
| |-
| |
| | 2
| |
| | M
| |
| | Midsummer
| |
| | 2:00
| |
| | europe file: Moscow - M # Midsummer, also for Spain, France, Germany/SovietZone
| |
| |-
| |
| | 32
| |
| | LM
| |
| | Local Mean
| |
| | N/A
| |
| | several
| |
| |-
| |
| | 32
| |
| | DS
| |
| | Double Summer
| |
| | 2:00
| |
| | europe file: MDST # Moscow Double Summer Time, BDST - British Double Summer Time
| |
| |-
| |
| | 32
| |
| | DD
| |
| | Double Daylight (Saving)
| |
| | 2:00
| |
| | northamerica file: StJohns 1988)
| |
| |-
| |
| | 32
| |
| | HS
| |
| | half summer time?
| |
| | 0:30
| |
| |
| |
| * australasia file: Pacific/Rarotonga CK%sT and "HS"
| |
| * southamerica file: Uruguay
| |
| |-
| |
| | 32
| |
| | HS
| |
| | ?
| |
| | 0:20
| |
| |
| |
| * africa file: Rule Ghana 1936-1942
| |
| |-
| |
| | 32
| |
| | HD
| |
| | half daylight saving time
| |
| | 0:30
| |
| |
| |
| * northamerica file: Rule Belize 1918-1942
| |
| * northamerica file: Rule DR 1969-1973
| |
| |}
| |
|
| |
|
| Other:
| | The tzdb currently does not have a concept of "time zone" in the sense of a region with a specified base time offset; are you suggesting that it add one? |
| Kampala:
| | ---- |
| 3:00 - EAT 1930
| |
| 2:30 - BEAT 1948
| |
| 2:45 - BEAUT 1957
| |
| Aruba (in ISO 3166-1 AW)
| |
| -4:00 - AST
| |
| GBGT 1966 May 26 # Br Guiana Time
| |
| NEGT 1975 Nov 20 # Dutch Guiana Time
| |
| * Two letters for locality - xxT
| |
| ** Brazil - Fernando Noronha: FNT
| |
| * Two letter for locality - xxST
| |
| ** Lord Howe : LHST
| |
| * Two letters for locality - xx%sT
| |
| ** Several zone in Brazil that use Brasilia BRT (BR is also the country code)
| |
| | |
| == Bugs ==
| |
| Some fixes can be found at [[ANNA time zone database]].
| |
| {| class="wikitable sortable"
| |
| ! Country
| |
| ! Description
| |
| ! width=64 | Open since at least
| |
| ! Why not fixed?
| |
| |-
| |
| | [[Australia]]
| |
| | EST and CST are used as acronyms for AEST/AEDT and CEST/CEDT, i.e. during DST one cannot tell from the acronym what zone is meant.
| |
| | 2006-06-02 04:08:36 [http://article.gmane.org/gmane.comp.time.tz/1042/match=est]
| |
| | TZ coordinator (Paul Eggert) does not want to fix
| |
| |-
| |
| | [[Indonesia]]
| |
| | WIT means Western Indonesian Time, but in local Indonesian language, WIT stands for Waktu Indonesia Timur (Eastern Indonesian Time), change requests - without mentioning the ambiguity - go back to 2003 [http://article.gmane.org/gmane.linux.debian.devel.glibc/12741/match=wita+wib+wit]
| |
| | 2013-02-13 14:17:58 [http://article.gmane.org/gmane.comp.time.tz/5839]
| |
| | TZ coordinator (Paul Eggert) does not fix
| |
| |-
| |
| | [[Norway]]
| |
| | No IANA zone defined for Bouvet Island while Norwegian law sets a standard time http://article.gmane.org/gmane.comp.time.tz/5218/
| |
| | 2012-05-29 18:32:23 [http://article.gmane.org/gmane.comp.time.tz/5218/]
| |
| | TZ coordinator (Paul Eggert) does not want to fix
| |
| |-
| |
| | [[Russia]]
| |
| |
| |
| *Zones in Siberia are wrong
| |
| * patch provided 2012-05-02 22:18:43 by Arthur David Olson [http://article.gmane.org/gmane.comp.time.tz/4905/match=barnaul+tomsk]
| |
| | 2011-09-17 16:12:16 [http://article.gmane.org/gmane.comp.time.tz/4872/match=siberia]
| |
| | TZ coordinator (Paul Eggert) does not fix - reason unknown
| |
| |-
| |
| | Australia/Antarctica
| |
| | Antarctica/Macquarie given as AQ territory, not AU territory.
| |
| | 2013-04-12
| |
| |
| |
| |}
| |
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| ==Localization== | | ==Localization== |
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| * territory 001 - might refer to the UN M.49 code for "World". | | * territory 001 - might refer to the UN M.49 code for "World". |
| | |
| | ==Zone changes== |
| | 2013-08-11 |
| | -AQ -7750+16636 Antarctica/McMurdo McMurdo Station, Ross Island |
| | -AQ -9000+00000 Antarctica/South_Pole Amundsen-Scott Station, South Pole |
| | +AQ -7750+16636 Pacific/Auckland McMurdo, South Pole, Scott (New Zealand time) |
| | So Pacific/Auckland now has two pairs of coordinates, the new AQ-one and the old NZ-one. |
| | NZ -3652+17446 Pacific/Auckland most locations |
| | |
| | *Connecting Vaduz to Bern Mean Time |
| | **http://mm.icann.org/pipermail/tz/2013-September/020085.html |
Abbreviations
IANA time zone database - time zone acronyms
Bugs
IANA time zone database - bugs
Zone terminology
Guy Harris 2013-09-18 23:37:48 http://mm.icann.org/pipermail/tz/2013-September/020284.html
So I prefer terms such as "tzdb zone" to refer to those things that have tzids. I'm not wedded to *that* term, but there should be *some* term other than "time zone" for that.
The tzdb currently does not have a concept of "time zone" in the sense of a region with a specified base time offset; are you suggesting that it add one?
Localization
CLDR
http://unicode.org/repos/cldr/trunk/common/supplemental/metaZones.xml
- territory 001 - might refer to the UN M.49 code for "World".
Zone changes
2013-08-11
-AQ -7750+16636 Antarctica/McMurdo McMurdo Station, Ross Island
-AQ -9000+00000 Antarctica/South_Pole Amundsen-Scott Station, South Pole
+AQ -7750+16636 Pacific/Auckland McMurdo, South Pole, Scott (New Zealand time)
So Pacific/Auckland now has two pairs of coordinates, the new AQ-one and the old NZ-one.
NZ -3652+17446 Pacific/Auckland most locations
- Connecting Vaduz to Bern Mean Time