Define a period

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How many working days in year 1942?

Here is the detail of the calculation:

Because 1942 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 9 public holidays that do not fall during a weekend and we obtain 252 working days in 1942.

Here is the list of these 9 public holidays:

1. New Year's Day : Thursday, 1 January, 1942
2. Independence Day : Tuesday, 24 February, 1942
3. Good Friday : Friday, 3 April, 1942
4. Spring Day : Friday, 1 May, 1942
5. Victory Day : Tuesday, 23 June, 1942
6. Midsummer Day : Wednesday, 24 June, 1942
7. Independence Restoration Day : Thursday, 20 August, 1942
8. Christmas Eve : Thursday, 24 December, 1942
9. Christmas Day : Friday, 25 December, 1942

And here are the 3 public holidays falling on a weekend:

1. Easter : Sunday, 5 April, 1942
2. Pentecost : Sunday, 24 May, 1942
3. Second Day of Christmas : Saturday, 26 December, 1942