Quick answer: Thailand has 241 business days in 2026 for a default Monday-Friday week, for the period Jan 1, 2026 through Dec 31, 2026.
Month-by-month business days (2026)
Weekdays counted: Monday-Friday.
| Month | Business days | Public holiday days in month |
|---|---|---|
| January | 20 | 2 |
| February | 20 | 0 |
| March | 21 | 1 |
| April | 18 | 4 |
| May | 18 | 4 |
| June | 20 | 2 |
| July | 21 | 2 |
| August | 20 | 1 |
| September | 22 | 0 |
| October | 20 | 2 |
| November | 21 | 0 |
| December | 20 | 4 |
Public holidays in 2026 (Thailand)
National public holidays that overlap the same date range as the business day calculation.
| Date | Name |
|---|---|
| Jan 1, 2026 | New Year's Day |
| Jan 2, 2026 | New Year Special Holiday |
| Mar 3, 2026 | Makha Bucha |
| Apr 6, 2026 | Chakri Day |
| Apr 13, 2026 | Songkran |
| Apr 14, 2026 | Songkran Holiday |
| Apr 15, 2026 | Songkran Holiday |
| May 1, 2026 | Labor Day |
| May 4, 2026 | Coronation Day |
| May 13, 2026 | Royal Ploughing Ceremony Day |
| May 31, 2026 | Visakha Bucha |
| Jun 1, 2026 | Day off for Visakha Bucha |
| Jun 3, 2026 | Queen Suthida's Birthday |
| Jul 28, 2026 | King Vajiralongkorn's Birthday |
| Jul 29, 2026 | Asalha Bucha |
| Aug 12, 2026 | The Queen Mother's Birthday |
| Oct 13, 2026 | Anniversary of the Death of King Bhumibol |
| Oct 23, 2026 | Chulalongkorn Day |
| Dec 5, 2026 | King Bhumibol's Birthday |
| Dec 7, 2026 | King Bhumibol's Birthday |
| Dec 10, 2026 | Constitution Day |
| Dec 31, 2026 | New Year's Eve |
Key insights
Total working days
Default Monday-Friday workweek in 2026.
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 2026?
Thailand has 241 working days in 2026 using a default Monday-Friday workweek and excluding national public holidays.
Are public holidays included in the calculation?
Yes. National public holidays in 2026 are excluded from the working-day total (about 22 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.