Quick answer: Thailand has 239 business days in 2021 for a default Monday-Friday week, for the period Jan 1, 2021 through Dec 31, 2021.
Month-by-month business days (2021)
Weekdays counted: Monday-Friday.
| Month | Business days | Public holiday days in month |
|---|---|---|
| January | 20 | 1 |
| February | 18 | 2 |
| March | 23 | 0 |
| April | 17 | 5 |
| May | 17 | 5 |
| June | 21 | 1 |
| July | 20 | 4 |
| August | 21 | 1 |
| September | 21 | 1 |
| October | 19 | 3 |
| November | 22 | 0 |
| December | 20 | 4 |
Public holidays in 2021 (Thailand)
National public holidays that overlap the same date range as the business day calculation.
| Date | Name |
|---|---|
| Jan 1, 2021 | New Year's Day |
| Feb 12, 2021 | Chinese New Year's Day |
| Feb 26, 2021 | Makha Bucha |
| Apr 6, 2021 | Chakri Day |
| Apr 12, 2021 | Songkran Holiday |
| Apr 13, 2021 | Songkran |
| Apr 14, 2021 | Songkran Holiday |
| Apr 15, 2021 | Songkran Holiday |
| May 1, 2021 | Labor Day |
| May 3, 2021 | Labor Day |
| May 4, 2021 | Coronation Day |
| May 10, 2021 | Royal Ploughing Ceremony Day |
| May 26, 2021 | Visakha Bucha |
| Jun 3, 2021 | Queen Suthida's Birthday |
| Jul 24, 2021 | Asalha Bucha |
| Jul 25, 2021 | Buddhist Lent Day |
| Jul 26, 2021 | Asalha Bucha |
| Jul 28, 2021 | King Vajiralongkorn's Birthday |
| Aug 12, 2021 | The Queen Mother's Birthday |
| Sep 24, 2021 | Mahidol Day |
| Oct 13, 2021 | Anniversary of the Death of King Bhumibol |
| Oct 22, 2021 | Day off for Chulalongkorn Day |
| Oct 23, 2021 | Chulalongkorn Day |
| Dec 5, 2021 | King Bhumibol's Birthday |
| Dec 6, 2021 | King Bhumibol's Birthday |
| Dec 10, 2021 | Constitution Day |
| Dec 31, 2021 | New Year's Eve |
Key insights
Total working days
Default Monday-Friday workweek in 2021.
Highest month
23 working days.
Lowest month
17 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 2021?
Thailand has 239 working days in 2021 using a default Monday-Friday workweek and excluding national public holidays.
Are public holidays included in the calculation?
Yes. National public holidays in 2021 are excluded from the working-day total (about 27 calendar days in this dataset).
Which month has the fewest working days?
April and May has the fewest working days, with 17.
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.