Определить период

...

How many working days in year 1938?

Here is the detail of the calculation:

Because 1938 is not a leap year, it has 365 days.

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

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 252 working days in 1938.

Here is the list of these 8 public holidays:

1. Seollal / Korean New Year Holiday : понедельник, 31 январь, 1938
2. Seollal / Korean New Year Holiday : вторник, 1 февраль, 1938
3. Independence Movement Day : вторник, 1 март, 1938
4. Children's Day : четверг, 5 май, 1938
5. Memorial Day : понедельник, 6 июнь, 1938
6. Liberation Day : понедельник, 15 август, 1938
7. National Foundation Day : понедельник, 3 октябрь, 1938
8. Chuseok / Midautumn Festival : пятница, 7 октябрь, 1938

And here are the 6 public holidays falling on a weekend:

1. New Year's Day : суббота, 1 январь, 1938
2. Seollal / Korean New Year Holiday : воскресенье, 30 январь, 1938
3. Buddha's Birthday : суббота, 7 май, 1938
4. Chuseok / Midautumn Festival : суббота, 8 октябрь, 1938
5. Chuseok / Midautumn Festival : воскресенье, 9 октябрь, 1938
6. Christmas Day : воскресенье, 25 декабрь, 1938