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How many working days in year 1930?

Here is the detail of the calculation:

Because 1930 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 10 public holidays that do not fall during a weekend and we obtain 251 working days in 1930.

Here is the list of these 10 public holidays:

1. New Year's Day : среда, 1 январь, 1930
2. Independence Day : понедельник, 24 февраль, 1930
3. Good Friday : пятница, 18 апрель, 1930
4. Spring Day : четверг, 1 май, 1930
5. Victory Day : понедельник, 23 июнь, 1930
6. Midsummer Day : вторник, 24 июнь, 1930
7. Independence Restoration Day : среда, 20 август, 1930
8. Christmas Eve : среда, 24 декабрь, 1930
9. Christmas Day : четверг, 25 декабрь, 1930
10. Second Day of Christmas : пятница, 26 декабрь, 1930

And here are the 2 public holidays falling on a weekend:

1. Easter : воскресенье, 20 апрель, 1930
2. Pentecost : воскресенье, 8 июнь, 1930