New Year's Day
January 1
Observed on January 2
Makha Bucha
March 6
Buddhist festival, March 15 Thai lunar calendar
Chakri Memorial Day
April 6
Songkran Festival
April 13–15
New Year's Day in Thai lunar calendar
Labour Day
May 1
*except Government
Special additional holiday
May 5
*only 2023
Royal Ploughing Ceremony
Mid-May
*Government holiday
Wisakha Bucha Day
June 3
Observed on June 5
Buddha's Birthday, Jun 15 Thai lunar calendar
Queen Suthida's Birthday
June 3
Observed on June 5
King Vachiralongkorn’s Birthday
July 28
Special additional holiday
July 31
*only 2023
Asarnha Bucha Day
August 1
Buddhist festival, August 15 Thai lunar calendar
Khao Phansa Day
August 2
*Government holiday
Buddhist festival, August 16 Thai lunar calendar
The Queen Mother's Birthday
August 12
Observed on August 14
King Bhumibol Adulyadej Memorial Day
October 13
King Chulalongkorn Memorial Day
October 23
King Bhumibol Adulyadej's Birthday Anniversary
December 5
Constitution Day
December 10
Observed on December 11
New Year's Eve
December 31