Working Days · Japan
How Many Working Days Are in Japan in 2026?
Japan has 244 working days in 2026. The total is calculated by subtracting weekend days and public holidays falling on weekdays from the 365 calendar days in the year.
How working days are calculated
A working day (or business day) is any day the average office is expected to be open — Monday to Friday excluding officially designated public holidays. For Japan 2026, this calculation produces approximately 244 working days across the year. Our table breaks the count down by month, showing the total calendar days, weekend days subtracted, public-holiday days subtracted, and the resulting working-day count. Note that public holidays falling on a weekend are not double-counted (they're already excluded as weekend days), and observed-day substitutions follow each country's official rule. This is the same calculation used by payroll systems, project management tools, and corporate planning calendars worldwide. For a five-day week with no overtime, the working day count is what determines the ceiling on annual labour capacity.
| Month | Calendar days | Weekend days | Public holidays (weekday) | Working days |
|---|---|---|---|---|
| January | 31 | 9 | 2 | 20 |
| February | 28 | 8 | 2 | 18 |
| March | 31 | 9 | 1 | 21 |
| April | 30 | 8 | 1 | 21 |
| May | 31 | 10 | 3 | 18 |
| June | 30 | 8 | 0 | 22 |
| July | 31 | 8 | 1 | 22 |
| August | 31 | 10 | 1 | 20 |
| September | 30 | 8 | 3 | 19 |
| October | 31 | 9 | 1 | 21 |
| November | 30 | 9 | 2 | 19 |
| December | 31 | 8 | 0 | 23 |
| Totals | 365 | 104 | 17 | 244 |