Vanuatu time zone history
Daylight saving time was used in 13 years since 1970, last in 1993; under the current rules the clocks no longer change. On standard time, clocks in Efate run 14 minutes behind local mean solar time.
UTC+11
Standard time is UTC+11 all year under the current rules.
Summer time in 13 of 57 years since 1970
Before 1970
Standard time changes
| Date | Change | New standard time | Clock label |
|---|---|---|---|
| Before 1970 | |||
| January 13, 1912 | Local mean time (UTC+11:13:16) replaced | UTC+11 | numeric only |
Daylight saving periods
| Years | Clocks go forward | Clocks go back | Shift and labels |
|---|---|---|---|
| 1973 | December 22 | not that year | 1 hour |
| 1974 | not that year | March 31 | 1 hour |
| 1983 | September 25 | not that year | 1 hour |
| 1984 | September 23 | March 25 | 1 hour |
| 1985–1986 | last Sunday in September, 00:00 | fourth Sunday in March, 00:00 | 1 hour |
| 1987–1990 | fourth Sunday in September, 00:00 | last Sunday in March, 00:00 | 1 hour |
| 1991 | September 29 | March 24 | 1 hour |
| 1992 | October 25 | January 26 | 1 hour |
| 1993 | not that year | January 24 | 1 hour |
Also on UTC+11
New Caledonia, Norfolk Island, Solomon Islands, Bougainville (Papua New Guinea), Micronesia, Sakhalin (Russia), Magadan (Russia) and Srednekolymsk (Russia).
Clocks next door since 1970
- New Caledonia (551 km): same time except 2,018 days in 1973, 1974, 1977–1979, 1983–1993, 1996 and 1997.
- Fiji (1,059 km): usually 1 hour ahead; different on 2,961 days in 1973, 1974, 1983–1993, 1998–2000 and 2009–2021.
- Norfolk Island (1,267 km): usually 30 minutes ahead; different on 5,990 days in 1973–1975, 1983–1993 and 2015–2026; same time today.
- Solomon Islands (1,267 km): same time except 1,757 days in 1973, 1974 and 1983–1993.
- Tonga (1,760 km): usually 2 hours ahead; different on 2,158 days in 1973, 1974, 1983–1993, 1999–2002, 2016 and 2017.
How it compares
Clocks were first moved for daylight saving in 1973, the earliest start of the 6 zones on UTC+11 standard time that ever used daylight saving time.
Standard time has stayed at UTC+11 since 1912.