In accordance with the provision of Rule 101.3 of the SEAMES Staff Regulations and Staff Rules, the following Thai Government official holidays will be observed during the calendar year 2018.

1. New Year' Day
(compensatory holiday)
Monday
Tuesday
1 January
2 January
2. Makha Bucha Day Thursday 1 March
3. Chakri Memorial Day Friday 6 April
4. Songkran Festival Day
(compensatory holiday)
Friday
Saturday
Sunday
Monday
13 April
14 April
15 April
16 April
5. Royal Ploughing Ceremony Day Monday 14 May
6. Visakha Bucha Day Tuesday 29 May
7. Asalha Bucha Day Friday 27 July
8. Buddhist Lent Day and H.M. King  
Maha Vajiralongkorn' Birthday 
(compensatory holiday)
Saturday 
Monday
28 July 30 July
9. H.M. the Queen Sirikit' Birthday
(compensatory holiday)
Sunday
Monday
12 August
13 August
10. H.M. the the late King Bhumibol Adulyadej Memorial Day 
(compensatory holiday)
Saturday
Monday
13 October 
15 October
11. King Chulalongkorn Memorial Day Tuesday 23 October
12. H.M. the late King Bhumibol Adulyadej' Birthday Wednesday 5 December
13. Constitution Day Monday 10 December
14. New Year' Eve Monday 31 December