Quick answer: Thailand has 246 business days in 2027 for a default Monday-Friday week, for the period Jan 1, 2027 through Dec 31, 2027.
Month-by-month business days (2027)
Weekdays counted: Monday-Friday.
| Month | Business days | Public holiday days in month |
|---|---|---|
| January | 20 | 1 |
| February | 20 | 0 |
| March | 23 | 0 |
| April | 18 | 4 |
| May | 19 | 3 |
| June | 21 | 1 |
| July | 21 | 1 |
| August | 21 | 1 |
| September | 22 | 0 |
| October | 19 | 3 |
| November | 22 | 0 |
| December | 20 | 4 |
Public holidays in 2027 (Thailand)
National public holidays that overlap the same date range as the business day calculation.
| Date | Name |
|---|---|
| Jan 1, 2027 | New Year's Day |
| Apr 6, 2027 | Chakri Day |
| Apr 13, 2027 | Songkran |
| Apr 14, 2027 | Songkran Holiday |
| Apr 15, 2027 | Songkran Holiday |
| May 1, 2027 | Labor Day |
| May 3, 2027 | Labor Day |
| May 4, 2027 | Coronation Day |
| Jun 3, 2027 | Queen Suthida's Birthday |
| Jul 28, 2027 | King Vajiralongkorn's Birthday |
| Aug 12, 2027 | The Queen Mother's Birthday |
| Oct 13, 2027 | Anniversary of the Death of King Bhumibol |
| Oct 23, 2027 | Chulalongkorn Day |
| Oct 25, 2027 | Day off for Chulalongkorn Day |
| Dec 5, 2027 | King Bhumibol's Birthday |
| Dec 6, 2027 | King Bhumibol's Birthday |
| Dec 10, 2027 | Constitution Day |
| Dec 31, 2027 | New Year's Eve |
Key insights
Total working days
Default Monday-Friday workweek in 2027.
Highest month
23 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 2027?
Thailand has 246 working days in 2027 using a default Monday-Friday workweek and excluding national public holidays.
Are public holidays included in the calculation?
Yes. National public holidays in 2027 are excluded from the working-day total (about 18 calendar days in this dataset).
Which month has the fewest working days?
April 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.