Define a period

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How many working days in year 1943?

Here is the detail of the calculation:

Because 1943 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 12 public holidays that do not fall during a weekend and we obtain 249 working days in 1943.

Here is the list of these 12 public holidays:

1. New Year's Day : Friday, 1 January, 1943
2. National day : Wednesday, 3 March, 1943
3. Orthodox Easter Friday : Friday, 23 April, 1943
4. Orthodox Easter Monday : Monday, 26 April, 1943
5. Labour Day (observance) : Monday, 3 May, 1943
6. St. George's Day : Thursday, 6 May, 1943
7. Culture and Literacy Day : Monday, 24 May, 1943
8. Unification Day : Monday, 6 September, 1943
9. Independence Day : Wednesday, 22 September, 1943
10. Christmas Eve : Friday, 24 December, 1943
11. Christmas Day (observance) : Monday, 27 December, 1943
12. Christmas Day (observance) : Tuesday, 28 December, 1943

And here are the 5 public holidays falling on a weekend:

1. Orthodox Easter Saturday : Saturday, 24 April, 1943
2. Orthodox Easter Sunday : Sunday, 25 April, 1943
3. Labour Day : Saturday, 1 May, 1943
4. Christmas Day : Saturday, 25 December, 1943
5. Boxing day : Sunday, 26 December, 1943