Asia/Sakhalin

Time zone identifier: Asia/Sakhalin

Current civil offset: +11:00 (+11)

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1905-08-22

Local Mean Time (LMT): +09:30:48 based on geographic meridian

Total recorded transitions: 66 transitions across 5 distinct offsets

Associated countries: RU

Historical Offset Step Chart (1880 to Present)

Text summary: Asia/Sakhalin shifted between 5 distinct offsets from 1905-08-22 through the modern era.

Complete Transition History (66 Transitions)

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1905-08-22T14:29:12Z`	`1905-08-22 23:29:12`	+09:30:48 → +09:00	`+09`	No	overlap
`1945-08-24T15:00:00Z`	`1945-08-25 02:00:00`	+09:00 → +11:00	`+11`	No	gap
`1981-03-31T13:00:00Z`	`1981-04-01 01:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1981-09-30T12:00:00Z`	`1981-09-30 23:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1982-03-31T13:00:00Z`	`1982-04-01 01:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1982-09-30T12:00:00Z`	`1982-09-30 23:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1983-03-31T13:00:00Z`	`1983-04-01 01:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1983-09-30T12:00:00Z`	`1983-09-30 23:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1984-03-31T13:00:00Z`	`1984-04-01 01:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1984-09-29T15:00:00Z`	`1984-09-30 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1985-03-30T15:00:00Z`	`1985-03-31 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1985-09-28T15:00:00Z`	`1985-09-29 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1986-03-29T15:00:00Z`	`1986-03-30 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1986-09-27T15:00:00Z`	`1986-09-28 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1987-03-28T15:00:00Z`	`1987-03-29 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1987-09-26T15:00:00Z`	`1987-09-27 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1988-03-26T15:00:00Z`	`1988-03-27 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1988-09-24T15:00:00Z`	`1988-09-25 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1989-03-25T15:00:00Z`	`1989-03-26 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1989-09-23T15:00:00Z`	`1989-09-24 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1990-03-24T15:00:00Z`	`1990-03-25 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1990-09-29T15:00:00Z`	`1990-09-30 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1991-03-30T15:00:00Z`	`1991-03-31 02:00:00`	+11:00 → +11:00	`+11`	Yes	offset-only
`1991-09-28T16:00:00Z`	`1991-09-29 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`1992-01-18T16:00:00Z`	`1992-01-19 03:00:00`	+10:00 → +11:00	`+11`	No	gap
`1992-03-28T15:00:00Z`	`1992-03-29 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1992-09-26T15:00:00Z`	`1992-09-27 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1993-03-27T15:00:00Z`	`1993-03-28 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1993-09-25T15:00:00Z`	`1993-09-26 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1994-03-26T15:00:00Z`	`1994-03-27 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1994-09-24T15:00:00Z`	`1994-09-25 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1995-03-25T15:00:00Z`	`1995-03-26 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1995-09-23T15:00:00Z`	`1995-09-24 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1996-03-30T15:00:00Z`	`1996-03-31 03:00:00`	+11:00 → +12:00	`+12`	Yes	gap
`1996-10-26T15:00:00Z`	`1996-10-27 02:00:00`	+12:00 → +11:00	`+11`	No	overlap
`1997-03-29T15:00:00Z`	`1997-03-30 02:00:00`	+11:00 → +11:00	`+11`	Yes	offset-only
`1997-10-25T16:00:00Z`	`1997-10-26 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`1998-03-28T16:00:00Z`	`1998-03-29 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`1998-10-24T16:00:00Z`	`1998-10-25 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`1999-03-27T16:00:00Z`	`1999-03-28 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`1999-10-30T16:00:00Z`	`1999-10-31 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2000-03-25T16:00:00Z`	`2000-03-26 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2000-10-28T16:00:00Z`	`2000-10-29 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2001-03-24T16:00:00Z`	`2001-03-25 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2001-10-27T16:00:00Z`	`2001-10-28 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2002-03-30T16:00:00Z`	`2002-03-31 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2002-10-26T16:00:00Z`	`2002-10-27 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2003-03-29T16:00:00Z`	`2003-03-30 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2003-10-25T16:00:00Z`	`2003-10-26 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2004-03-27T16:00:00Z`	`2004-03-28 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2004-10-30T16:00:00Z`	`2004-10-31 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2005-03-26T16:00:00Z`	`2005-03-27 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2005-10-29T16:00:00Z`	`2005-10-30 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2006-03-25T16:00:00Z`	`2006-03-26 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2006-10-28T16:00:00Z`	`2006-10-29 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2007-03-24T16:00:00Z`	`2007-03-25 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2007-10-27T16:00:00Z`	`2007-10-28 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2008-03-29T16:00:00Z`	`2008-03-30 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2008-10-25T16:00:00Z`	`2008-10-26 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2009-03-28T16:00:00Z`	`2009-03-29 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2009-10-24T16:00:00Z`	`2009-10-25 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2010-03-27T16:00:00Z`	`2010-03-28 03:00:00`	+10:00 → +11:00	`+11`	Yes	gap
`2010-10-30T16:00:00Z`	`2010-10-31 02:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2011-03-26T16:00:00Z`	`2011-03-27 03:00:00`	+10:00 → +11:00	`+11`	No	gap
`2014-10-25T15:00:00Z`	`2014-10-26 01:00:00`	+11:00 → +10:00	`+10`	No	overlap
`2016-03-26T16:00:00Z`	`2016-03-27 03:00:00`	+10:00 → +11:00	`+11`	No	gap

Notes from the Maintainers

Source: europe (Lines 3414 to 3427)

From Tim Parenti (2014-07-03):
Asia/Sakhalin covers...
65	RU-SAK	Sakhalin Oblast
...with the exception of:
65-11	****	Severo-Kurilsky District (North Kuril Islands)

From Matt Johnson (2016-02-22):
Asia/Sakhalin is moving (in entirety) from UTC+10 to UTC+11 ...
(2016-03-09):
http://publication.pravo.gov.ru/Document/View/0001201603090044

The Zone name should be Asia/Yuzhno-Sakhalinsk, but that's too long.

Attributed Statements:

Tim Parenti (2014-07-03):

Asia/Sakhalin covers... 65 RU-SAK Sakhalin Oblast ...with the exception of: 65-11 **** Severo-Kurilsky District (North Kuril Islands)

Matt Johnson (2016-02-22):

Asia/Sakhalin is moving (in entirety) from UTC+10 to UTC+11 ... (2016-03-09): http://publication.pravo.gov.ru/Document/View/0001201603090044 The Zone name should be Asia/Yuzhno-Sakhalinsk, but that's too long.

Years on Record

Methodology Note: The 1970 Rule

tzdb guarantees accuracy for timestamps from 1970 onwards. Transitions prior to 1970 represent best-effort historical reconstructions.