Business Days Calculator — Thailand
Calculate working days in Thailand excluding 18 public holidays in 2026.
Business Days Calculator
Calculate delivery dates excluding weekends and public holidays worldwide.
Public Holidays in Thailand (2026)
| Date | Holiday |
|---|---|
| 2026-01-01 | New Year's Day |
| 2026-03-03 | Makha Bucha |
| 2026-04-06 | Chakri Memorial Day |
| 2026-04-13 | Songkran Festival |
| 2026-04-14 | Songkran Festival |
| 2026-04-15 | Songkran Festival |
| 2026-05-04 | Coronation Day |
| 2026-05-31 | Vesak Day |
| 2026-06-03 | Queen Suthida's Birthday |
| 2026-07-28 | King's Birthday |
| 2026-07-29 | Asalha Puja |
| 2026-07-30 | Buddhist Lent |
| 2026-08-12 | The Queen Mother's Birthday |
| 2026-10-13 | King Bhumibol Adulyadej Memorial Day |
| 2026-10-23 | King Chulalongkorn Day |
| 2026-12-05 | King Bhumibol Adulyadej's Birthday |
| 2026-12-10 | Constitution Day |
| 2026-12-31 | New Year's Eve |
How this calculation works
This page helps you plan deadlines in Thailand using business days (not calendar days). Results depend on weekends and the public-holiday calendar.
- Weekends: Saturday and Sunday are excluded by default.
- Holidays: 18 public holidays in 2026 are excluded (see table).
- Saturday as a working day: you can enable it in the form if it applies to you.
A few examples of 2026 holidays: New Year's Day, Makha Bucha, Chakri Memorial Day, Songkran Festival, Songkran Festival, Songkran Festival…
Note: holiday calendars can vary by region/industry and may change at short notice. For critical decisions, verify with official sources.
Frequently asked questions
What’s the difference between a business day and a calendar day?
Calendar days count every day (including weekends). Business days exclude weekends and typically public holidays.
Why does the result change by country?
Because each country has a different public-holiday calendar. Also, some industries treat Saturday as a working day.
Can I use this for legal or banking deadlines?
Use it as a planning aid. Some official deadlines depend on specific definitions (e.g., regional holidays, cut-off times, or jurisdiction-specific rules).
Related resources
If you need more context, these guides explain the method and common use cases.