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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 10 public holidays that do not fall during a weekend and we obtain 251 working days in 1918.

Here is the list of these 10 public holidays:

1. New Year's Day : вторник, 1 январь, 1918
2. Australia Day Observance : понедельник, 28 январь, 1918
3. Labour Day : понедельник, 4 март, 1918
4. Good Friday : пятница, 29 март, 1918
5. Easter Monday : понедельник, 1 апрель, 1918
6. Anzac Day : четверг, 25 апрель, 1918
7. Western Australia Day : понедельник, 3 июнь, 1918
8. Queen's Birthday : понедельник, 30 сентябрь, 1918
9. Christmas Day : среда, 25 декабрь, 1918
10. Boxing Day : четверг, 26 декабрь, 1918

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

1. Australia Day : суббота, 26 январь, 1918
2. Easter Sunday : воскресенье, 31 март, 1918