Define a period

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How many working days in year 2069?

Here is the detail of the calculation:

Because 2069 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 13 public holidays that do not fall during a weekend and we obtain 248 working days in 2069.

Here is the list of these 13 public holidays:

1. 신정 : Tuesday, 1 January, 2069
2. Seollal / Korean New Year Holiday : Tuesday, 22 January, 2069
3. Seollal / Korean New Year Holiday : Wednesday, 23 January, 2069
4. Seollal / Korean New Year Holiday : Thursday, 24 January, 2069
5. 삼일절 : Friday, 1 March, 2069
6. 어린이날 : Monday, 6 May, 2069
7. 석가탄신일 : Tuesday, 28 May, 2069
8. 현충일 : Thursday, 6 June, 2069
9. 광복절 : Thursday, 15 August, 2069
10. 추석 : Monday, 30 September, 2069
11. 개천절 : Thursday, 3 October, 2069
12. 한글날 : Wednesday, 9 October, 2069
13. 성탄절 : Wednesday, 25 December, 2069

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

1. 석가탄신일 : Sunday, 28 April, 2069
2. 어린이날 : Sunday, 5 May, 2069
3. 추석 : Saturday, 28 September, 2069
4. 추석 : Sunday, 29 September, 2069