Business days calculator › Thailand
Business days calculator: Thailand
Count working days between two dates in Thailand, or add business days to a date. Weekends (Saturday and Sunday) and Thailand public holidays are skipped.
Planning time off? See how to maximise your annual leave in Thailand in 2027: the exact days to book for the longest breaks.
Working days in Thailand, 2026 and 2027
| Month | 2026 | 2027 |
|---|---|---|
| January | 21 | 20 |
| February | 20 | 20 |
| March | 21 | 23 |
| April | 18 | 18 |
| May | 20 | 20 |
| June | 21 | 21 |
| July | 20 | 21 |
| August | 20 | 21 |
| September | 22 | 22 |
| October | 20 | 20 |
| November | 21 | 22 |
| December | 21 | 21 |
| Total | 245 | 249 |
National public holidays only; weekends are Saturday and Sunday.
Public holidays in Thailand, 2026
| Date | Day | Holiday |
|---|---|---|
| 1 Jan 2026 | Thursday | New Year's Day |
| 3 Mar 2026 | Tuesday | Makha Bucha |
| 6 Apr 2026 | Monday | Chakri Memorial Day |
| 13 Apr 2026 | Monday | Songkran Festival |
| 14 Apr 2026 | Tuesday | Songkran Festival |
| 15 Apr 2026 | Wednesday | Songkran Festival |
| 4 May 2026 | Monday | Coronation Day |
| 31 May 2026 | Sunday | Vesak Day |
| 3 Jun 2026 | Wednesday | Queen Suthida's Birthday |
| 28 Jul 2026 | Tuesday | King's Birthday |
| 29 Jul 2026 | Wednesday | Asalha Puja |
| 30 Jul 2026 | Thursday | Buddhist Lent |
| 12 Aug 2026 | Wednesday | The Queen Mother's Birthday |
| 13 Oct 2026 | Tuesday | King Bhumibol Adulyadej Memorial Day |
| 23 Oct 2026 | Friday | King Chulalongkorn Day |
| 5 Dec 2026 | Saturday | King Bhumibol Adulyadej's Birthday |
| 10 Dec 2026 | Thursday | Constitution Day |
| 31 Dec 2026 | Thursday | New Year's Eve |
Full lists with long weekends: Thailand public holidays 2026 · Thailand public holidays 2027
Holiday list for Excel and Google Sheets
Paste these dates into a column, name the range Holidays, then use=NETWORKDAYS(A2, B2, Holidays) to count working days or =WORKDAY(A2, 10, Holidays) to add them.
Subscribe to Thailand holidays in your calendar
Add every Thailand public holiday to Google Calendar, Outlook or Apple Calendar. The feed updates automatically each year.
Add to Google CalendarApple / Outlook (webcal) ·Download .ics
Frequently asked questions
How many working days are there in Thailand in 2026?
245 working days, counting Saturday and Sunday as the weekend and excluding national public holidays that fall on working days. State or regional holidays can reduce this further.
Which days are the weekend in Thailand?
Saturday and Sunday. You can change the weekend days in the calculator options if your workplace differs.
Does this include local holidays?
Thailand has no separate regional holiday calendars in our data, so national holidays apply everywhere.