| 1 January 2018 | New Year’s Day |
| 2 January 2018 | Substitution for New Year’s Eve (Sunday 31 December) |
| 1 March 2018 | Makha Bucha Day |
| 6 April 2018 | Chakri Memorial Day |
| 13 April 2018 | Songkran Festival |
| 16 April 2018 | Substitution for Songkran Festival (Saturday 14 April) |
| 17 April 2018 | Substitution for Songkran Festival (Sunday 15 April) |
| 1 May 2018 | National Labour Day |
| 29 May 2018 | Wisakha Bucha Day |
| 27 July 2018 | Asarnha Bucha Day |
| 30 July 2018 | Substitution for H.M. the King Maha Vajiralongkorn Bodindradebayavarangkun’s Birthday (Saturday 28 July) |
| 13 October 2018 | Substitution for H.M. the Queen’s Birthday (Sunday 12 August) |
| 15 October 2018 | Substitution for the Passing of H.M. the Late King Bhumibol Adulyadej (Rama IX) (Saturday 13 October) |
| 23 October 2018 | Chulalongkorn Day |
| 5 December 2018 | H.M. the Late King Bhumibol Adulyadej’s Birthday, National Day and National Father’s Day |
| 31 December 2018 | New Year’s Eve |