Date and time notation in Thailand

Thailand has adopted ISO 8601 under national standard: TIS 1111:2535 in 1992. However, in practice, there are some variations.

Date

Thailand mainly uses the Buddhist calendar which is 543 years ahead of the Gregorian calendar. The year 2020 CE is indicated as 2563 BE in Thailand. Despite adopting ISO 8601, Thai official date is still written in D/M/YYYY formats, such as 30 January 2562 BE (2019 CE) or 30/1/2562.

Time

There are two systems of telling time in Thailand. Official time follows a 24-hour clock. The 24-hour clock is commonly used in military, aviation, navigation, meteorology, astronomy, computing, logistical, emergency services, and hospital settings, where the ambiguities of the 12-hour clock cannot be tolerated.

In the second, everyday usage, the day is divided into four six-hour periods.[1]:101 Additional words are used to identify the period specified (similar to a.m. or p.m. for a 12-hour system).

The distinguishing words are:[2]

  • 00:00-00:59 = เที่ยงคืน thiang khuen
  • 01:00-05:59 = ตี ti
  • 06:00-11:59 = โมงเช้า mong chao
  • 12:00-12:59 = เที่ยง tiang
  • 13:00-15:59 = บ่ายโมง bai mong
  • 16:00-18:59 = โมงเย็น mong yen
  • 19:00-23:59 = ทุ่ม thum

Thailand is in the UTC+07:00 time zone, which is also known as Indochina Time (ICT) and military time zone Golf

See also

References
  1. Higbie, James (2011). Essential Thai (2nd ed.). Bangkok: Orchid Press. ISBN 9789745241374.
  2. "Telling Time". thai-language.com. Retrieved 17 May 2019.


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