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How many working days in year 1971?

Here is the detail of the calculation:

Because 1971 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 7 public holidays that do not fall during a weekend and we obtain 254 working days in 1971.

Here is the list of these 7 public holidays:

1. New Year's Day : пятница, 1 январь, 1971
2. Seollal / Korean New Year Holiday : вторник, 26 январь, 1971
3. Seollal / Korean New Year Holiday : среда, 27 январь, 1971
4. Seollal / Korean New Year Holiday : четверг, 28 январь, 1971
5. Independence Movement Day : понедельник, 1 март, 1971
6. Children's Day : среда, 5 май, 1971
7. Chuseok / Midautumn Festival : понедельник, 4 октябрь, 1971

And here are the 7 public holidays falling on a weekend:

1. Buddha's Birthday : воскресенье, 2 май, 1971
2. Memorial Day : воскресенье, 6 июнь, 1971
3. Liberation Day : воскресенье, 15 август, 1971
4. Chuseok / Midautumn Festival : суббота, 2 октябрь, 1971
5. Chuseok / Midautumn Festival : воскресенье, 3 октябрь, 1971
6. Hangeul Day : суббота, 9 октябрь, 1971
7. Christmas Day : суббота, 25 декабрь, 1971