Historically distinct IANA time zone
Antarctica/Troll
- Countries
- Antarctica
- GPS reference
- 72.01° S, 2.54° E
- Data source
- IANA antarctica
- Aliases
- None
- Rule groups
- Troll
AntarcticaTroll
Geographic context
Where this clock belongs
The map marks the IANA reference location and associated country, not a time-zone boundary.
GPS reference: 72.01° S, 2.54° E. Associated countries: AQ.
The Wikipedia link provides additional context; it is not evidence for a historical claim. Transition data comes from the IANA source file.
Notes from the time database
The story behind the clock
These source notes describe a period or rule. They do not, by themselves, establish a causal claim for a particular clock change.
Norway - territories Bouvet (never inhabited) claims Peter I Island (never inhabited) year-round base Troll, Queen Maud Land, -720041+0023206, since 2005-02-12 I recently had a long dialog about this with the developer of timegenie.com. In the absence of specific dates, he decided to choose some likely ones: GMT +1 - From March 1 to the last Sunday in March GMT +2 - From the last Sunday in March until the last Sunday in October GMT +1 - From the last Sunday in October until November 7 GMT +0 - From November 7 until March 1 The dates for switching to and from UTC+0 will probably not be absolutely correct, but they should be quite close to the actual dates. The CET-switching Troll rules require zic from tz 2014b or later, so as suggested by Bengt-Inge Larsson comment them out for now, and approximate with only UTC and CEST. Uncomment them when 2014b is more prevalent. Rule Troll 2005 max - Mar 1 1:00u 1:00 +01
Original IANA source file: antarctica.
Civil-time record
Recorded changes over time
From 2005 to 2027 · 47 recorded transitions
Recurring daylight-saving changes are grouped separately when JavaScript is available.
Notable changes
One-off changes and transitions outside the recurring seasonal rhythm.
- +00:00 · +00Standard time applies
- +02:00 · +02Daylight saving time begins
- +00:00 · +00Standard time applies
- +02:00 · +02Daylight saving time begins
- +00:00 · +00Standard time applies
- +02:00 · +02Daylight saving time begins
Browse every recorded transition
| Local time after transition | Offset after | Abbreviation | Rule |
|---|---|---|---|
| 2005-02-12 00:00 | +00:00 | +00 | Standard time |
| 2005-03-27 03:00 | +02:00 | +02 | Daylight saving time |
| 2005-10-30 01:00 | +00:00 | +00 | Standard time |
| 2006-03-26 03:00 | +02:00 | +02 | Daylight saving time |
| 2006-10-29 01:00 | +00:00 | +00 | Standard time |
| 2007-03-25 03:00 | +02:00 | +02 | Daylight saving time |
| 2007-10-28 01:00 | +00:00 | +00 | Standard time |
| 2008-03-30 03:00 | +02:00 | +02 | Daylight saving time |
| 2008-10-26 01:00 | +00:00 | +00 | Standard time |
| 2009-03-29 03:00 | +02:00 | +02 | Daylight saving time |
| 2009-10-25 01:00 | +00:00 | +00 | Standard time |
| 2010-03-28 03:00 | +02:00 | +02 | Daylight saving time |
| 2010-10-31 01:00 | +00:00 | +00 | Standard time |
| 2011-03-27 03:00 | +02:00 | +02 | Daylight saving time |
| 2011-10-30 01:00 | +00:00 | +00 | Standard time |
| 2012-03-25 03:00 | +02:00 | +02 | Daylight saving time |
| 2012-10-28 01:00 | +00:00 | +00 | Standard time |
| 2013-03-31 03:00 | +02:00 | +02 | Daylight saving time |
| 2013-10-27 01:00 | +00:00 | +00 | Standard time |
| 2014-03-30 03:00 | +02:00 | +02 | Daylight saving time |
| 2014-10-26 01:00 | +00:00 | +00 | Standard time |
| 2015-03-29 03:00 | +02:00 | +02 | Daylight saving time |
| 2015-10-25 01:00 | +00:00 | +00 | Standard time |
| 2016-03-27 03:00 | +02:00 | +02 | Daylight saving time |
| 2016-10-30 01:00 | +00:00 | +00 | Standard time |
| 2017-03-26 03:00 | +02:00 | +02 | Daylight saving time |
| 2017-10-29 01:00 | +00:00 | +00 | Standard time |
| 2018-03-25 03:00 | +02:00 | +02 | Daylight saving time |
| 2018-10-28 01:00 | +00:00 | +00 | Standard time |
| 2019-03-31 03:00 | +02:00 | +02 | Daylight saving time |
| 2019-10-27 01:00 | +00:00 | +00 | Standard time |
| 2020-03-29 03:00 | +02:00 | +02 | Daylight saving time |
| 2020-10-25 01:00 | +00:00 | +00 | Standard time |
| 2021-03-28 03:00 | +02:00 | +02 | Daylight saving time |
| 2021-10-31 01:00 | +00:00 | +00 | Standard time |
| 2022-03-27 03:00 | +02:00 | +02 | Daylight saving time |
| 2022-10-30 01:00 | +00:00 | +00 | Standard time |
| 2023-03-26 03:00 | +02:00 | +02 | Daylight saving time |
| 2023-10-29 01:00 | +00:00 | +00 | Standard time |
| 2024-03-31 03:00 | +02:00 | +02 | Daylight saving time |
| 2024-10-27 01:00 | +00:00 | +00 | Standard time |
| 2025-03-30 03:00 | +02:00 | +02 | Daylight saving time |
| 2025-10-26 01:00 | +00:00 | +00 | Standard time |
| 2026-03-29 03:00 | +02:00 | +02 | Daylight saving time |
| 2026-10-25 01:00 | +00:00 | +00 | Standard time |
| 2027-03-28 03:00 | +02:00 | +02 | Daylight saving time |
| 2027-10-31 01:00 | +00:00 | +00 | Standard time |