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How many working days in year 1972?

Here is the detail of the calculation:

Because 1972 is a leap year, it has 366 days.

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

Now, let's remove 6 public holidays that do not fall during a weekend and we obtain 254 working days in 1972.

Here is the list of these 6 public holidays:

1. Independence Day : четверг, 24 февраль, 1972
2. Good Friday : пятница, 31 март, 1972
3. Spring Day : понедельник, 1 май, 1972
4. Victory Day : пятница, 23 июнь, 1972
5. Christmas Day : понедельник, 25 декабрь, 1972
6. Second Day of Christmas : вторник, 26 декабрь, 1972

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

1. New Year's Day : суббота, 1 январь, 1972
2. Easter : воскресенье, 2 апрель, 1972
3. Pentecost : воскресенье, 21 май, 1972
4. Midsummer Day : суббота, 24 июнь, 1972
5. Independence Restoration Day : воскресенье, 20 август, 1972
6. Christmas Eve : воскресенье, 24 декабрь, 1972