Определить период

...

How many working days in year 2111?

Here is the detail of the calculation:

Because 2111 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 2111.

Here is the list of these 7 public holidays:

1. New Year's Day : четверг, 1 январь, 2111
2. New Year's Holiday : пятница, 2 январь, 2111
3. Orthodox Christmas Day : среда, 7 январь, 2111
4. National Day Holiday : понедельник, 16 февраль, 2111
5. National Day Holiday : вторник, 17 февраль, 2111
6. May Day : пятница, 1 май, 2111
7. Armistice Day : среда, 11 ноябрь, 2111

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

1. National Day : воскресенье, 15 февраль, 2111
2. May Day Holiday : суббота, 2 май, 2111