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How many working days in year 1940?

Here is the detail of the calculation:

Because 1940 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 252 working days in 1940.

Here is the list of these 10 public holidays:

1. New Year's Day : понедельник, 1 январь, 1940
2. St. Patrick's Day (substitute day) : понедельник, 18 март, 1940
3. Good Friday : пятница, 22 март, 1940
4. Easter Monday : понедельник, 25 март, 1940
5. Early May Bank Holiday : понедельник, 6 май, 1940
6. Spring Bank Holiday : понедельник, 27 май, 1940
7. Orangemen's Day : пятница, 12 июль, 1940
8. Late Summer Bank Holiday : понедельник, 26 август, 1940
9. Christmas Day : среда, 25 декабрь, 1940
10. Boxing Day : четверг, 26 декабрь, 1940

And here is the public holiday falling on a weekend:

1. St. Patrick's Day : воскресенье, 17 март, 1940