Thailand Public Holidays (2018)
Monday 1  January New Year's Day
Tuesday 2  January Substitution for New Year' s Day
Thursday
1
 March Makha Bucha Day
Friday
6
 April Chakri Day
Friday
13
 April Songkran Day
Monday
16
 April Substitution for Songkran Day (14/4/2018)
Tuesday
17
 April Substitution for Songkran Day (15/4/2018)
Tuesday
1
 May National Labour Day
Tuesday 29  May Visakha Bucha Day
Friday 27  July Arsarnha Bucha Day
Monday
30
 July Substitution for His Majesty King Maha Vajiralongkorn’s Birthday (28/7/2018)
Monday 13  August Substitution for His Majesty King Maha Vajiralongkorn’s Birthday (28/7/2018)
Monday 15  October Substitution for His Majesty the late King Bhumibol Adulyadej Memorial Day
Tuesday
23
 October King Chulalongkorn Memorial Day
Wednesday
5
 December The birthday of His Majesty the late King Bhumibol Adulyadej
Monday
10
 December Constitution Day
Monday 31 December New Year’s Eve 
       

 

Thailand Public Holidays (2019)
Tuesday 1  January New Year's Day
Tuesday 19  February Makha Bucha Day
Monday
8
April Substitution for Chakri Day (6/4/2019)
Monday
15
 April Songkran Day
Tuesday
16
 April Substitution for Songkran Day (13/4/2019)
Wednesday
17
 April Substitution for Songkran Day (14/4/2019)
Wednesday
1
 May National Labour Day 
Monday
20
 May Substitution for Visakha Bucha Day (18/5/2019)
Tuesday 16 July Arsarnha Bucha Day
Monday 29  July Substitution for His Majesty King Maha Vajiralongkorn's Birthday (28/7/2019)
Monday
12
 August Her Majesty The Queen"s Birthday
Monday 14  October Substitution for His Majesty the late King Bhumibol  Adulyadej Memorial Day (13/10/2019)
Wednesday 23  October King Chulalongkorn Memorial Day
Thursday
5
 December The birthday of His Majesty the late King Bhumibol Adulyadej
Thesday
10
 December Constitution Day
Tuesday
31
 December New Year's Eve