Define a period

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How many working days in year 2025?

Here is the detail of the calculation:

Because 2025 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 52 sundays. It remains 261 days.

Now, let's remove 15 public holidays that do not fall during a weekend and we obtain 246 working days in 2025.

Here is the list of these 15 public holidays:

1. 신정 : Wednesday, 1 January, 2025
2. Seollal / Korean New Year Holiday : Tuesday, 28 January, 2025
3. Seollal / Korean New Year Holiday : Wednesday, 29 January, 2025
4. Seollal / Korean New Year Holiday : Thursday, 30 January, 2025
5. 삼일절 : Monday, 3 March, 2025
6. 석가탄신일 : Monday, 5 May, 2025
7. 어린이날 : Tuesday, 6 May, 2025
8. 현충일 : Friday, 6 June, 2025
9. 광복절 : Friday, 15 August, 2025
10. 개천절 : Friday, 3 October, 2025
11. 추석 : Monday, 6 October, 2025
12. 추석 : Tuesday, 7 October, 2025
13. 추석 : Wednesday, 8 October, 2025
14. 한글날 : Thursday, 9 October, 2025
15. 성탄절 : Thursday, 25 December, 2025

And here are the 2 public holidays falling on a weekend:

1. 삼일절 : Saturday, 1 March, 2025
2. 추석 : Sunday, 5 October, 2025