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How many working days in year 1921?

Here is the detail of the calculation:

Because 1921 is not a leap year, it has 365 days.

Let's remove 53 saturdays and 52 sundays. It remains 260 days.

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 252 working days in 1921.

Here is the list of these 8 public holidays:

1. Epiphany : четверг, 6 январь, 1921
2. Easter Monday : понедельник, 28 март, 1921
3. Constitution Day : вторник, 3 май, 1921
4. Corpus Christi : четверг, 26 май, 1921
5. Assumption of Mary : понедельник, 15 август, 1921
6. All Saints' Day : вторник, 1 ноябрь, 1921
7. Independence Day : пятница, 11 ноябрь, 1921
8. Boxing Day : понедельник, 26 декабрь, 1921

And here are the 5 public holidays falling on a weekend:

1. New Year's Day : суббота, 1 январь, 1921
2. Easter Sunday : воскресенье, 27 март, 1921
3. Labour Day : воскресенье, 1 май, 1921
4. Pentecost Sunday : воскресенье, 15 май, 1921
5. Christmas Day : воскресенье, 25 декабрь, 1921