Singapore Standard Time

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Singapore Standard Time (SST) or Waktu Piawai Singapura (WPS), also known as Singapore Time (SGT), is used in Singapore and is 8 hours ahead of UTC (UTC+08:00).


As part of British Malaya, Singapore originally adopted the Malayan time, which was 7 hours 30 minutes ahead of GMT.

Following the Japanese occupation, Malaya adopted Tokyo time of GMT+9 on 15 February 1942. Although official appointments were made according to Tokyo time it was common practice to keep two separate times: the pre-Occupation time at home and Tokyo time on personal watches.

At the end of World War II and the return of Malaya to the British, Singapore reverted to its pre-war timezone.

Daylight saving time in Singapore[edit]

Although Singapore does not currently observe daylight saving time in the traditional sense due to its tropical location, a form of daylight saving time, using a 20 minute offset, was introduced on an annual basis by the Legislative Council of the Straits Settlements in 1933, after an earlier attempt was abandoned in 1920. This offset was formally adopted as standard time in Singapore in 1936, and in 1941 the offset was increased to 30 minutes, the same as the 1920 proposal.

Malaysian standardisation[edit]

In 1981, Malaysia decided to standardize the time across its territories to a uniform UTC+08:00. Singapore elected to follow suit, citing business and travel schedules. The change took effect on 1 January 1982, when Singapore moved half an hour forward, creating "Singapore Standard Time" (SST). SST is eight hours ahead of UTC and is synchronized with Hong Kong, Taipei, Beijing, Manila and Perth.

Period in use Time offset from UTC (GMT prior to 1972-01-01)
1 June 1905 – 31 December 1932 UTC+07:00
1 January 1933 – 31 August 1941 UTC+07:20
1 September 1941 – 15 February 1942 UTC+07:30
15 February 1942 – 11 September 1945 UTC+09:00
12 September 1945 – 31 December 1981 UTC+07:30
1 January 1982 – present UTC+08:00

See also[edit]

External links[edit]