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 9 public holidays that do not fall during a weekend and we obtain 252 working days in 1990.
Here is the list of these 9 public holidays:
1. Нова Година : Monday, 1 January, 1990
2. Празник после Нове Године : Tuesday, 2 January, 1990
3. Божићни празник : Monday, 8 January, 1990
4. Дан државности Србије : Thursday, 15 February, 1990
5. Дан после Дана државности Србије : Friday, 16 February, 1990
6. Велики петак : Friday, 13 April, 1990
7. Васкршњи понедељак : Monday, 16 April, 1990
8. Празник рада : Tuesday, 1 May, 1990
9. Празник после Празника рада : Wednesday, 2 May, 1990
And here are the 4 public holidays falling on a weekend:
1. Божић : Sunday, 7 January, 1990
2. Васкршња субота : Saturday, 14 April, 1990
3. Васкрс : Sunday, 15 April, 1990
4. Дан примирја : Sunday, 11 November, 1990