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How many working days in year 1917?

Here is the detail of the calculation:

Because 1917 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 1917.

Here is the list of these 10 public holidays:

1. New Year's Day : понедельник, 1 январь, 1917
2. Australia Day : пятница, 26 январь, 1917
3. Labour Day : понедельник, 5 март, 1917
4. Good Friday : пятница, 6 апрель, 1917
5. Easter Monday : понедельник, 9 апрель, 1917
6. Anzac Day : среда, 25 апрель, 1917
7. Western Australia Day : понедельник, 4 июнь, 1917
8. Queen's Birthday : понедельник, 24 сентябрь, 1917
9. Christmas Day : вторник, 25 декабрь, 1917
10. Boxing Day : среда, 26 декабрь, 1917

And here is the public holiday falling on a weekend:

1. Easter Sunday : воскресенье, 8 апрель, 1917