Davis Station time zone history
The largest single move came on February 1, 1969, when clocks went forward 7 hours, from UTC+0 to UTC+7. On standard time, clocks at Davis Station run 1 hour 48 minutes ahead of local mean solar time, the sixth-largest gap of the 233 zones whose clocks run ahead of the sun. The latest change of standard time came on February 22, 2012, from UTC+5 to UTC+7.
UTC+7
Standard time is UTC+7 all year under the current rules.
4 times a new standard time since 1970
Before 1970
Standard time changes
| Date | Change | New standard time | Clock label |
|---|---|---|---|
| Before 1970 | |||
| January 13, 1957 | First local time in the record | UTC+7 | numeric only |
| November 1, 1964 | Standard time back 7 hours | UTC+0 | numeric only |
| February 1, 1969 | Standard time forward 7 hours | UTC+7 | numeric only |
| Since 1970 | |||
| October 18, 2009 | Standard time back 2 hours | UTC+5 | numeric only |
| March 11, 2010 | Standard time forward 2 hours | UTC+7 | numeric only |
| October 28, 2011 | Standard time back 2 hours | UTC+5 | numeric only |
| February 22, 2012 | Standard time forward 2 hours | UTC+7 | numeric only |
Also on UTC+7
Jakarta (Indonesia), Pontianak (Indonesia), Vietnam, Thailand, Hovd (Mongolia), Barnaul (Russia), Novokuznetsk (Russia), Novosibirsk (Russia), Krasnoyarsk (Russia) and Tomsk (Russia).
Clocks next door since 1970
- Mawson Station (634 km): usually 1 hour behind; different on 6,284 days in 2009–2026; 2 hours behind today.
- Vostok Station (1,393 km): same time except 1,645 days in 1994, 2009–2012 and 2023–2026; 2 hours behind today.
- Casey Station (1,395 km): usually 1 hour ahead; different on 1,563 days in 2009–2012 and 2016–2023.
- Troll Station (2,665 km): usually 7 hours behind; different on 4,956 days in 2005–2026.
- Macquarie Island (Australia) (4,193 km): usually 3 hours ahead; different on 9,458 days in 1970–2026.