Between the end of the Second World War and the formation of Malaysia on 16 September 1963, it was known as British Malayan Standard Time, which was GMT+07:30.
[3] This is enforced in law through the Malaysian Standard Time Act 1981.
On 1 January 1990, the Malaysian Cabinet appointed the National Metrology Laboratory (SIRIM) as the official timekeeper of Malaysia.
The cuurent timekeeping references to the Coordinated Universal Time (UTC) standard +00:00 area, offset forward by 8 hours (UTC+08:00).
This timescale is derived from five atomic clocks maintained by SIRIM and is always within 0.9 seconds of the legal time.