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How many working days in year 1964?

Here is the detail of the calculation:

Because 1964 is a leap year, it has 366 days.

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

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 253 working days in 1964.

Here is the list of these 9 public holidays:

1. New Year's Day : среда, 1 январь, 1964
2. Epiphany : понедельник, 6 январь, 1964
3. Clean Monday : понедельник, 16 март, 1964
4. Independence Day : среда, 25 март, 1964
5. Good Friday : пятница, 1 май, 1964
6. Easter Monday : понедельник, 4 май, 1964
7. Pentecost Monday : понедельник, 22 июнь, 1964
8. Ochi Day : среда, 28 октябрь, 1964
9. Christmas : пятница, 25 декабрь, 1964

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

1. Orthodox Easter : воскресенье, 3 май, 1964
2. Pentecost : воскресенье, 21 июнь, 1964
3. Assumption : суббота, 15 август, 1964
4. Glorifying Mother of God : суббота, 26 декабрь, 1964