Day Date Month Holiday Monday 1 Jan New Year's Day Monday 26 Feb Substitution for Makha Bucha Day (Saturday 24 Feb 2024) Monday 8 Apr Substitution for Chakri Memorial Day (Saturday 6 Apr 2024) Friday 12 Apr Special Holiday Monday 15 Apr Songkran Festival Tuesday 16 Apr Substitution for Songkran Festival (Saturday 13 and Sunday 14 Apr 2024) Wednesday 1 May National Labour Day Monday 6 May Substitution for Coronation Day (Saturday 4 May 2024) Wednesday 22 May Visakha Bucha Day Monday 3 Jun H.M. Queen Suthida Bajrasudhabimalalakshana's Birthday Monday 22 Jul Substitution for Asarnha Bucha Day (Saturday 20 Jul 2024) Monday 29 Jul Substitution for H.M. King Maha Vajiralongkorn Phra Vajiraklaochaoyuhua?s Birthday (Sunday 28 Jul 2024) Monday 12 Aug H.M. Queen Sirikit The Queen Mother's Birthday / Mother's Day Monday 14 Oct Substitution for H.M. King Bhumibol Adulyadej The Great Memorial Day (Sunday 13 Oct 2024) Wednesday 23 Oct Chulalongkorn Day Thursday 5 Dec H.M. King Bhumibol Adulyadej The Great's Birthday/ National Day / Father's Day Tuesday 10 Dec Constitution Day Tuesday 31 Dec New Year's Eve Note: The change of SET holidays is in line with the announcement of the Bank of Thailand (BOT) and the Securities Exchange Commission (SEC). Source: The Stock Exchange of Thailand