Day Date Month Holiday Tuesday 1 Jan New Year's Day Tuesday 19 Feb Makha Bucha Day Monday 8 Apr Substitution for Chakri Memorial Day (Saturday 6th April 2019) Friday 12 Apr Special Holiday Monday 15 Apr Songkran Festival Tuesday 16 Apr Substitution for Songkran Festival (Saturday 13th April 2019, Sunday 14th April 2019) Monday 6 May Special Holiday Thursday 9 May Royal Ploughing Ceremony Day Monday 20 May Substitution for Wisakha Bucha Day (Saturday 18th May 2019) Monday 3 Jun H.M. Queen Suthida’s Birthday Tuesday 16 Jul Asarnha Bucha Day Wednesday 17 Jul Buddhist Lent Day Monday 29 Jul Substitution for H.M. the King's Birthday (Sunday 28th July 2019) Monday 12 Aug H.M. Queen Sirikit’s Birthday Monday 14 Oct Substitution for the Passing of H.M. King Bhumibol Adulyadej (Sunday 13th October 2019) Wednesday 23 Oct Chulalongkorn Day Thursday 5 Dec H.M. the King Bhumibol Adulyadej's Birthday,
National Day and National Father's Day
Tuesday 10 Dec Constitution Day Tuesday 31 Dec New Year's Eve Remark: Subject to Change According to the Cabinet.