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How many working days in year 2113?

Here is the detail of the calculation:

Because 2113 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 253 working days in 2113.

Here is the list of these 7 public holidays:

1. Independence Movement Day : среда, 1 март, 2113
2. Children's Day : пятница, 5 май, 2113
3. Memorial Day : вторник, 6 июнь, 2113
4. Liberation Day : вторник, 15 август, 2113
5. National Foundation Day : вторник, 3 октябрь, 2113
6. Hangeul Day : понедельник, 9 октябрь, 2113
7. Christmas Day : понедельник, 25 декабрь, 2113

And here is the public holiday falling on a weekend:

1. New Year's Day : воскресенье, 1 январь, 2113