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How many working days in year 1918?

Here is the detail of the calculation:

Because 1918 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 11 public holidays that do not fall during a weekend and we obtain 250 working days in 1918.

Here is the list of these 11 public holidays:

1. Republic Day / New Year's Day : вторник, 1 январь, 1918
2. Good Friday : пятница, 29 март, 1918
3. Easter Monday : понедельник, 1 апрель, 1918
4. Labour Day : среда, 1 май, 1918
5. Victory over Fascism Day : среда, 8 май, 1918
6. Saints Cyril and Methodius’ Day : пятница, 5 июль, 1918
7. Slovak National Uprising Anniversary : четверг, 29 август, 1918
8. All Saints’ Day : пятница, 1 ноябрь, 1918
9. Christmas Eve : вторник, 24 декабрь, 1918
10. Christmas Day : среда, 25 декабрь, 1918
11. St. Stephen's Day : четверг, 26 декабрь, 1918

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

1. Epiphany : воскресенье, 6 январь, 1918
2. Constitution Day : воскресенье, 1 сентябрь, 1918
3. Day of Our Lady of Sorrows : воскресенье, 15 сентябрь, 1918
4. Freedom and Democracy Day : воскресенье, 17 ноябрь, 1918