Define a period

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How many working days in year 1990?

Here is the detail of the calculation:

Because 1990 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 13 public holidays that do not fall during a weekend and we obtain 248 working days in 1990.

Here is the list of these 13 public holidays:

1. New Year's Day : Monday, 1 January, 1990
2. New Year Holiday : Tuesday, 2 January, 1990
3. Preseren's Day : Thursday, 8 February, 1990
4. Easter Monday : Monday, 16 April, 1990
5. Resistance Day : Friday, 27 April, 1990
6. May Day : Tuesday, 1 May, 1990
7. May Day Holiday : Wednesday, 2 May, 1990
8. Statehood Day : Monday, 25 June, 1990
9. Assumption Day : Wednesday, 15 August, 1990
10. Reformation Day : Wednesday, 31 October, 1990
11. All Saints' Day : Thursday, 1 November, 1990
12. Christmas Day : Tuesday, 25 December, 1990
13. Independence and Unity Day : Wednesday, 26 December, 1990

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

1. Easter : Sunday, 15 April, 1990
2. Whitsunday : Sunday, 3 June, 1990