| Official Holiday 2011 | |||
| Sunday | 1 | January | New Year's Day; |
| Monday | 2 | January | New Year's Eve (Substitution); |
| Tuesday | 3 | January | New Year's Day (Substitution); |
| Wednesday | 7 | March | Makha Bucha Day; |
| Friday | 6 | April | The Chakri Day; |
| Friday | 13 | April | Songkran Festival ; |
| Saturday | 14 | April | Songkran Festival; |
| Sunday | 15 | April | Songkran Festival ; |
| Saturday | 5 | May | Coronation Day; |
| Monday | 7 | May | Coronation Day (Substitution); |
| Wednesday | 9 | May | Ploughing Day ; |
| Monday | 4 | June | Visakha Bucha Day; |
| Thursday | 2 | August | Asarnha Bucha Day; |
| Friday | 3 | August | Buddhist Lent Day; |
| Sunday | 12 | August | H.M. The Queen's Birthday; |
| Monday | 13 | August | H.M. The Queen's Birthday(Substitution); |
| Tuesday | 23 | October | King Chulalongkorn Memorial Day ; |
| Wednesday | 5 | December | H.M. The King's Birthday; |
| Monday | 10 | December | Constitution Day ; |
| Monday | 31 | December | New Year's Eve; |