Official Holiday for 2025 (B.E. 2568)
Royal Thai Embassy, London
| January | 1 | Wednesday | New Year’s Day | UK/TH |
| February | 12 | Wednesday | Maka Bucha Day | TH |
| April | 7 | Monday | Substitute for Chakri Memorial Day | TH |
| 14 | Monday | Songkran Day | TH | |
| 15 | Tuesday | Songkran Day | TH | |
| 18 | Friday | Good Friday | UK | |
| 21 | Monday | Easter Monday | UK | |
| May | 5 | Monday | Early May Bank Holiday/Substitution for the | UK/TH |
| Coronation Day | ||||
| 26 | Monday | Spring Bank Holiday | UK | |
| June | 3 | Tuesday | H.M. Quessn Suthida’s Birthday | TH |
| July | 28 | Monday | Substitute forH.M. King Maha | TH |
| Vajiralongkorn’s Birthday | ||||
| August | 12 | Tuesday | H.M. Quessn Sirikit’s Birthday | TH |
| 25 | Monday | Summer Bank Holiday | UK | |
| October | 13 | Monday | King Bhumibol Adulyadej The Great | TH |
| Memorial Day | ||||
| 23 | Thursday | King Chulalongkorn Memorial Day | TH | |
| December | 5 | Friday | King Bhumibol Adulyadej’s Birthday/National Day | TH |
| /National Father’s Day of Thailand | ||||
| 10 | Wednesday | Constitution Day | TH | |
| 25 | Thursday | Christmas Day | UK | |
| 26 | Friday | Boxing Day | UK | |
| 31 | Wednesday | New Year’s Eve | UK/TH |
Remark: UK– วันหยุดของประเทศอังกฤษ (British Holiday)/ TH – วันหยุดของประเทศไทย (Thai Holiday)