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How many working days in year 1951?

Here is the detail of the calculation:

Because 1951 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 1951.

Here is the list of these 12 public holidays:

1. New Year's Day : понедельник, 1 январь, 1951
2. Seollal / Korean New Year Holiday : понедельник, 5 февраль, 1951
3. Seollal / Korean New Year Holiday : вторник, 6 февраль, 1951
4. Seollal / Korean New Year Holiday : среда, 7 февраль, 1951
5. Independence Movement Day : четверг, 1 март, 1951
6. Children's Day : понедельник, 7 май, 1951
7. Memorial Day : среда, 6 июнь, 1951
8. Liberation Day : среда, 15 август, 1951
9. Chuseok / Midautumn Festival : пятница, 14 сентябрь, 1951
10. National Foundation Day : среда, 3 октябрь, 1951
11. Hangeul Day : вторник, 9 октябрь, 1951
12. Christmas Day : вторник, 25 декабрь, 1951

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

1. Children's Day : суббота, 5 май, 1951
2. Buddha's Birthday : воскресенье, 13 май, 1951
3. Chuseok / Midautumn Festival : суббота, 15 сентябрь, 1951
4. Chuseok / Midautumn Festival : воскресенье, 16 сентябрь, 1951