Quick answer: Thailand has 240 business days in 2025 for a default Monday-Friday week, for the period Jan 1, 2025 through Dec 31, 2025.
Month-by-month business days (2025)
Weekdays counted: Monday-Friday.
| Month | Business days | Public holiday days in month |
|---|---|---|
| January | 22 | 1 |
| February | 19 | 1 |
| March | 21 | 0 |
| April | 18 | 6 |
| May | 18 | 6 |
| June | 19 | 2 |
| July | 21 | 2 |
| August | 19 | 2 |
| September | 22 | 0 |
| October | 21 | 2 |
| November | 20 | 0 |
| December | 20 | 3 |
Public holidays in 2025 (Thailand)
National public holidays that overlap the same date range as the business day calculation.
| Date | Name |
|---|---|
| Jan 1, 2025 | New Year's Day |
| Feb 12, 2025 | Makha Bucha |
| Apr 6, 2025 | Chakri Day |
| Apr 7, 2025 | Day off for Chakri Day |
| Apr 13, 2025 | Songkran |
| Apr 14, 2025 | Songkran Holiday |
| Apr 15, 2025 | Songkran Holiday |
| Apr 16, 2025 | Songkran |
| May 1, 2025 | Labor Day |
| May 4, 2025 | Coronation Day |
| May 5, 2025 | Day off for Coronation Day |
| May 9, 2025 | Royal Ploughing Ceremony Day |
| May 11, 2025 | Visakha Bucha |
| May 12, 2025 | Day off for Visakha Bucha |
| Jun 2, 2025 | Bridge Public Holiday |
| Jun 3, 2025 | Queen Suthida's Birthday |
| Jul 10, 2025 | Asalha Bucha |
| Jul 28, 2025 | King Vajiralongkorn's Birthday |
| Aug 11, 2025 | Bridge Public Holiday |
| Aug 12, 2025 | The Queen Mother's Birthday |
| Oct 13, 2025 | Anniversary of the Death of King Bhumibol |
| Oct 23, 2025 | Chulalongkorn Day |
| Dec 5, 2025 | King Bhumibol's Birthday |
| Dec 10, 2025 | Constitution Day |
| Dec 31, 2025 | New Year's Eve |
Key insights
Total working days
Default Monday-Friday workweek in 2025.
Highest month
22 working days.
Lowest month
18 working days.
Holidays included
National public holidays excluded from the total.
Related guides & tools
Frequently asked questions
How many working days are there in Thailand in 2025?
Thailand has 240 working days in 2025 using a default Monday-Friday workweek and excluding national public holidays.
Are public holidays included in the calculation?
Yes. National public holidays in 2025 are excluded from the working-day total (about 25 calendar days in this dataset).
Which month has the fewest working days?
April and May has the fewest working days, with 18.
Can I customize the working week or include a region?
Yes. Use the business days calculator to change weekdays, add a region filter (when available), or calculate a custom range.