How many working days in year 1980?
Here is the detail of the calculation:
Because 1980 is a leap year, it has 366 days.
Let's remove 52 saturdays and 52 sundays. It remains 262 days.
Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 253 working days in 1980.
Here is the list of these 9 public holidays:
1. Нова Година : Tuesday, 1 January, 1980
2. Празник после Нове Године : Wednesday, 2 January, 1980
3. Божић : Monday, 7 January, 1980
4. Дан државности Србије : Friday, 15 February, 1980
5. Велики петак : Friday, 4 April, 1980
6. Васкршњи понедељак : Monday, 7 April, 1980
7. Празник рада : Thursday, 1 May, 1980
8. Празник после Празника рада : Friday, 2 May, 1980
9. Дан примирја : Tuesday, 11 November, 1980
And here are the 3 public holidays falling on a weekend:
1. Дан после Дана државности Србије : Saturday, 16 February, 1980
2. Васкршња субота : Saturday, 5 April, 1980
3. Васкрс : Sunday, 6 April, 1980