Define a period

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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 12 public holidays that do not fall during a weekend and we obtain 250 working days in 1940.

Here is the list of these 12 public holidays:

1. New Year's Day : Monday, 1 January, 1940
2. National day (observance) : Monday, 4 March, 1940
3. Orthodox Easter Friday : Friday, 26 April, 1940
4. Orthodox Easter Monday : Monday, 29 April, 1940
5. Labour Day : Wednesday, 1 May, 1940
6. St. George's Day : Monday, 6 May, 1940
7. Culture and Literacy Day : Friday, 24 May, 1940
8. Unification Day : Friday, 6 September, 1940
9. Independence Day (observance) : Monday, 23 September, 1940
10. Christmas Eve : Tuesday, 24 December, 1940
11. Christmas Day : Wednesday, 25 December, 1940
12. Boxing day : Thursday, 26 December, 1940

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

1. National day : Sunday, 3 March, 1940
2. Orthodox Easter Saturday : Saturday, 27 April, 1940
3. Orthodox Easter Sunday : Sunday, 28 April, 1940
4. Independence Day : Sunday, 22 September, 1940