Thai solar calendar

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The Suriyakati or Thai solar calendar (Thai: สุริยคติ) is the official and prevalent calendar in Thailand, although the Western calendar is sometimes used in business. The only difference between the western and the Thai calendar is the year counting.

The months and days of the week are the same as those used in the western Gregorian calendar, only their names differ. The year, however, is counted from the Buddhist Era (B.E.), which is 543 years earlier than the Christian Era (A.D.). For example, 2005 A.D. is equivalent to 2548 B.E. The era is based on the passing away (Parinibbana) of Gautama Buddha, which is dated to 543 BC by the Thai. (It is important to remember that only from January 1, 1941 onwards does this 543 addition/subtraction rule work perfectly. See below)

Until 1888 Thailand used a lunar calendar, in which the date of the New Year (Songkran) was between April 13 and 15. The new calendar, decreed by King Chulalongkorn (Rama V), was called Ratana Kosindra Sok, and was nearly identical with the western Gregorian calendar. Year counting, however, was in reference of the date of the founding of Bangkok (Ratana Kosindra), April 6 1782 (the first day of Year 1 Ratana Kosindra Era). King Vajiravudh (Rama VI) changed the year counting to Buddhist Era in 1912 and fixed the start of a year to April 1.

In 1941 (2484 B.E.), per decree by Prime Minister Phibunsongkhram, January 1 became the official start of a new year (so year 2483 B.E. had only nine months). When converting a date prior to that year, one should check whether it falls between January 1 and March 31: if so the number to add or subtract is 542, not 543.

Today, both New Year's Day (January 1) and Songkran (April 13-15) are public holidays. The buddhist feasts are still calculated according to the lunar calendar, so their dates change in the solar calendar every year. Months with 30 days end with -yon (-ยน), and the months with 31 days end with -khom (-คม).

Months
English name Thai Name Transcription
January มกราคม mokkarakhom
February กุมภาพันธ์ kumphaphan
March มีนาคม minakhom
April เมษายน mesayon
May พฤษภาคม pruetsaphakhom
June มิถุนายน mithunayon
July กรกฎาคม karakadakhom
August สิงหาคม singhakhom
September กันยายน kanyayon
October ตุลาคม tulakhom
November พฤศจิกายน pruetsachikayon
December ธันวาคม thanwakhom
Weekdays
English name Thai name Transcription
Monday วันจันทร์ wan chan
Tuesday วันอังคาร wan angkhan
Wednesday วันพุธ wan phut
Thursday วันพฤหัสบดี wan pharuehat(sabordee)
Friday วันศุกร์ wan suk
Saturday วันเสาร์ wan sao
Sunday วันอาทิตย์ wan athit

Note: The colours are the traditional Thai birthday colours.

[edit] See also

[edit] References

nl:Thaise zonkalender

th:ปฏิทินสุริยคติไทย th:พุทธศักราช zh:泰国历

Thai solar calendar

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