Define a period

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How many working days in year 2074?

Here is the detail of the calculation:

Because 2074 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 12 public holidays that do not fall during a weekend and we obtain 249 working days in 2074.

Here is the list of these 12 public holidays:

1. 신정 : Monday, 1 January, 2074
2. Seollal / Korean New Year Holiday : Friday, 26 January, 2074
3. 삼일절 : Thursday, 1 March, 2074
4. 석가탄신일 : Thursday, 3 May, 2074
5. 어린이날 : Monday, 7 May, 2074
6. 현충일 : Wednesday, 6 June, 2074
7. 광복절 : Wednesday, 15 August, 2074
8. 개천절 : Wednesday, 3 October, 2074
9. 추석 : Thursday, 4 October, 2074
10. 추석 : Friday, 5 October, 2074
11. 한글날 : Tuesday, 9 October, 2074
12. 성탄절 : Tuesday, 25 December, 2074

And here are the 4 public holidays falling on a weekend:

1. Seollal / Korean New Year Holiday : Saturday, 27 January, 2074
2. Seollal / Korean New Year Holiday : Sunday, 28 January, 2074
3. 어린이날 : Saturday, 5 May, 2074
4. 추석 : Saturday, 6 October, 2074