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How many working days in year 2120?

Here is the detail of the calculation:

Because 2120 is a leap year, it has 366 days.

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

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 254 working days in 2120.

Here is the list of these 8 public holidays:

1. New Year's Day : понедельник, 1 январь, 2120
2. Independence Movement Day : пятница, 1 март, 2120
3. Children's Day : понедельник, 6 май, 2120
4. Memorial Day : четверг, 6 июнь, 2120
5. Liberation Day : четверг, 15 август, 2120
6. National Foundation Day : четверг, 3 октябрь, 2120
7. Hangeul Day : среда, 9 октябрь, 2120
8. Christmas Day : среда, 25 декабрь, 2120

And here is the public holiday falling on a weekend:

1. Children's Day : воскресенье, 5 май, 2120