Day Date Month Holiday Monday 3 Jan Substitution for New Year's Day (Saturday 1st January 2022) Wednesday 16 Feb Makha Bucha Day Wednesday 6 Apr Chakri Memorial Day Wednesday 13 Apr Songkran Festival Thursday 14 Apr Songkran Festival Friday 15 Apr Songkran Festival Monday 2 May Substitution for National Labour Day (Sunday 1st May 2022) Wednesday 4 May Coronation Day Monday 16 May Substitution for Wisakha Bucha Day (Sunday 15th May 2022) Friday 3 Jun H.M. Queen Suthida Bajrasudhabimalalakshana's Birthday Wednesday 13 Jul Asarnha Bucha Day Thursday 28 Jul H.M. King Maha Vajiralongkorn Phra Vajiraklaochaoyuhua's Birthday Friday 12 Aug H.M. Queen Sirikit The Queen Mother?s Birthday / Mother's Day Thursday 13 Oct H.M. King Bhumibol Adulyadej The Great Memorial Day Monday 24 Oct Substitution for Chulalongkorn Day (Sunday 23rd October 2022) Monday 5 Dec H.M. King Bhumibol Adulyadej The Great's Birthday/ National Day / Father's Day Monday 12 Dec Substitution for Constitution Day (Saturday 10th December 2022) Source: The Stock Exchange of Thailand