Define a period

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How many working days in year 2024?

Here is the detail of the calculation:

Because 2024 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 14 public holidays that do not fall during a weekend and we obtain 248 working days in 2024.

Here is the list of these 14 public holidays:

1. New Year's Day : Monday, 1 January, 2024
2. Coming of Age Day : Monday, 8 January, 2024
3. Foundation Day (observance) : Monday, 12 February, 2024
4. Emperor's Birthday : Friday, 23 February, 2024
5. Vernal Equinox Day : Wednesday, 20 March, 2024
6. Shōwa Day : Monday, 29 April, 2024
7. Constitution Memorial Day : Friday, 3 May, 2024
8. Children's Day (observance) : Monday, 6 May, 2024
9. Marine Day : Monday, 15 July, 2024
10. Mountain Day (observance) : Monday, 12 August, 2024
11. Respect-for-Aged Day : Monday, 16 September, 2024
12. Autumnal Equinox Day : Monday, 23 September, 2024
13. Health and Sports Day : Monday, 14 October, 2024
14. Culture Day (observance) : Monday, 4 November, 2024

And here are the 6 public holidays falling on a weekend:

1. Foundation Day : Sunday, 11 February, 2024
2. Greenery Day : Saturday, 4 May, 2024
3. Children's Day : Sunday, 5 May, 2024
4. Mountain Day : Sunday, 11 August, 2024
5. Culture Day : Sunday, 3 November, 2024
6. Labor Thanksgiving Day : Saturday, 23 November, 2024