Antarctica/Rothera

Time zone identifier: Antarctica/Rothera

Current civil offset: -03:00 (-03)

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1976-12-01

Total recorded transitions: 1 transitions across 2 distinct offsets

Associated countries: AQ

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Historical Offset Step Chart (1880 to Present)

-4:00 -3:00 -2:00 -1:00 +0:00 +1:00 1880 1900 1920 1940 1960 1980 2000 2020

Text summary: Antarctica/Rothera shifted between 2 distinct offsets from 1976-12-01 through the modern era.

Complete Transition History (1 Transitions)

UTC Instant Local Wall Time Shift Abbreviation DST Effect
1976-12-01T00:00:00Z 1976-11-30 21:00:00 +00:00 → -03:00 -03 No overlap

Notes from the Maintainers

Source: antarctica (Lines 297 to 327)
S Africa - year-round bases
Marion Island, -4653+03752
SANAE IV, Vesleskarvet, Queen Maud Land, -714022-0025026, since 1997

Ukraine - year-round base
Vernadsky (formerly Faraday), Galindez Island, -651445-0641526, since 1954

United Kingdom

British Antarctic Territories (BAT) claims
South Orkney Islands
scientific station from 1903
whaling station at Signy I 1920/1926
South Shetland Islands

year-round bases
Bird Island, South Georgia, -5400-03803, since 1983
Deception Island, -6259-06034, whaling station 1912/1931,
scientific station 1943/1967,
previously sealers and a scientific expedition wintered by accident,
and a garrison was deployed briefly
Halley, Coates Land, -7535-02604, since 1956-01-06
Halley is on a moving ice shelf and is periodically relocated
so that it is never more than 10km from its nominal location.
Rothera, Adelaide Island, -6734-6808, since 1976-12-01

From Paul Eggert (2002-10-22)
<http://webexhibits.org/daylightsaving/g.html> says Rothera is -03 all year.

Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]

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.