Define a period

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How many working days in year 1982?

Here is the detail of the calculation:

Because 1982 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 7 public holidays that do not fall during a weekend and we obtain 254 working days in 1982.

Here is the list of these 7 public holidays:

1. Нова Година : Friday, 1 January, 1982
2. Божић : Thursday, 7 January, 1982
3. Дан државности Србије : Monday, 15 February, 1982
4. Дан после Дана државности Србије : Tuesday, 16 February, 1982
5. Велики петак : Friday, 16 April, 1982
6. Васкршњи понедељак : Monday, 19 April, 1982
7. Дан примирја : Thursday, 11 November, 1982

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

1. Празник после Нове Године : Saturday, 2 January, 1982
2. Васкршња субота : Saturday, 17 April, 1982
3. Васкрс : Sunday, 18 April, 1982
4. Празник рада : Saturday, 1 May, 1982
5. Празник после Празника рада : Sunday, 2 May, 1982