Define a period

...

How many working days in year 2075?

Here is the detail of the calculation:

Because 2075 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 14 public holidays that do not fall during a weekend and we obtain 247 working days in 2075.

Here is the list of these 14 public holidays:

1. 신정 : Tuesday, 1 January, 2075
2. Seollal / Korean New Year Holiday : Thursday, 14 February, 2075
3. Seollal / Korean New Year Holiday : Friday, 15 February, 2075
4. 삼일절 : Friday, 1 March, 2075
5. 어린이날 : Monday, 6 May, 2075
6. 석가탄신일 : Wednesday, 22 May, 2075
7. 현충일 : Thursday, 6 June, 2075
8. 광복절 : Thursday, 15 August, 2075
9. 추석 : Monday, 23 September, 2075
10. 추석 : Tuesday, 24 September, 2075
11. 추석 : Wednesday, 25 September, 2075
12. 개천절 : Thursday, 3 October, 2075
13. 한글날 : Wednesday, 9 October, 2075
14. 성탄절 : Wednesday, 25 December, 2075

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

1. Seollal / Korean New Year Holiday : Saturday, 16 February, 2075
2. 어린이날 : Sunday, 5 May, 2075