Time in Malaysia


Time in Malaysia

Malaysia Standard Time (MST) or Waktu Piawai Malaysia (WPM) or Malaysia Time (MYT) is a standard time used in Malaysia. It is 8 hours ahead of Greenwich Mean Time and Coordinated Universal Time. The local mean time in Kuala Lumpur was originally GMT+06:46:48. Peninsular Malaysia used this local mean time until 1880, when they changed to Singapore mean time GMT+06:55:24. Between the end of the Second World War and the formation of Malaysia in 16 September 1963, it was known as British Malayan Standard Time, which was UTC+07:30 hours ahead of Greenwich Mean Time. At 2330 hrs local time of 31 December 1981 people in Peninsular Malaysia adjusted their clocks and watches ahead by 30 minutes to become 0000 hrs local time of 1 January 1982, to match the time in use in East Malaysia which is UTC+08:00.

Contents

Time changing chronicles (Peninsular Malaysia)

Period in use Time offset from GMT Name of Time (unofficial)
1 January 1901 - 31 May 1905 UTC+06:46:48 British Malayan Mean Time
1 June 1905 - 31 December 1932 UTC+07:00:00 Standard Zone Time
1 January 1933 - 31 August 1941 UTC+07:20:00 Daylight Standard Time
1 September 1941 - 15 February 1942 UTC+07:30:00 Daylight Standard Time
16 February 1942 - 12 September 1945 UTC+09:00:00 Tokyo Standard Time
13 September 1945 - 31 December 1981 UTC+07:30:00 Daylight Standard Time/Malaysia Standard Time
13 September 1945 - 31 December 1981 UTC+07:30:00 Daylight Standard Time/East Malaysia Standard Time
13 September 1945 - 30 April 1982 UTC+07:30:00 Daylight Standard Time/Peninsular Malaysia Standard Time
1 January 1982 – Present UTC+08:00:00 Malaysia Standard Time
1 January 1982 – Present UTC+08:00:00 East Malaysia Standard Time
1 May 1982 – Present UTC+08:00:00 Peninsular Malaysia Standard Time

Time in East Malaysia

The local mean time in Kota Kinabalu is UTC+07:44:20. Sabah and Sarawak used local mean time until 1926. They then changed to UTC+07:30. In 1933 when West Malaysia changed to UTC+07:20 they changed to UTC+08:00 with a 20-minute time change between 14 September and 14 December. During the Japanese occupation based in Tokyo time (UTC+09:00) was used, before changing back to UTC+08:00 but without the daylight saving time in 1945.

   Zone Asia/Kuching
   UTC+07:44:20    -       Kota Kinabalu Mean Time           1926 1 March
   UTC+07:30:00    -       Perak Standard Time               1933 1 January
   UTC+09:00:00    -       Japan Standard Time               1942 16 February
   UTC+07:30:00    -       Perak Standard Time               1945 1 September
   UTC+08:00:00    -       Sabah Standard Time               1963 1 September
   UTC+08:00:00    -       Malaysia Standard Time            1982 1 January
   UTC+08:00:00    -       East Malaysia Standard Time       1982 1 January
   UTC+08:00:00    -       Peninsular Malaysia Standard Time 1982 1 May
   # Rule  NAME     FROM  TO    ON      AT    SAVE LETTER/S
   Rule    North Borneo  1935  1941  14 September UTC+07:20:00  UTC+00:20:00 Singapore Standard Time
   Rule    North Borneo  1935  1941  15 December  UTC+07:20:00  UTC+00:20:00 Malaysia Standard Time

The daylight saving time from 14 September to 14 December in the years from 1935 to 1941 is very interesting. On 3 November the equation of time reaches a maximum of UTC+16:25. This seems to be an attempt at reducing the variation in the time of the sunrise by looking at how the analemma rises in the tropics.

Sarawak use mean time (UTC+07:20) until February 1989 until it was joint to Malaysia, UTC+08:00 is used instead.

History

Standardisation of time in Malaysia

Malaysia declared that people in West Malaysia would move their clocks ahead by 30 min to match the time in use in East Malaysia (UTC+08:00 hrs an UTC+08:00:00 ahead of Greenwich Mean Time) in 31 December 1981. However many found this to be awkward as most of Malaysia (roughly 80%) live in West Malaysia rather than in East Malaysia. The time was switched on 1 January 1982 at 6:00 am (old time) to 6:30 am (new time).

Timekeeper

On 1 January 1990, the Malaysian Cabinet appointed the National Metrology Laboratory (SIRIM) as the official timekeeper of Malaysia. The Malaysian Standard Time is derived from five atomic clocks maintained by SIRIM.

References

External links


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