Определить период

...

How many working days in year 2105?

Here is the detail of the calculation:

Because 2105 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 2105.

Here is the list of these 9 public holidays:

1. New Year's Day : четверг, 1 январь, 2105
2. Second Day of the New Year : пятница, 2 январь, 2105
3. Baptism of the Lord : вторник, 6 январь, 2105
4. Synaxis of St. John the Baptist : среда, 7 январь, 2105
5. Labour Day : пятница, 1 май, 2105
6. Children's Day : понедельник, 1 июнь, 2105
7. St. Andrew's Day : понедельник, 30 ноябрь, 2105
8. National Day : вторник, 1 декабрь, 2105
9. Christmas Day : пятница, 25 декабрь, 2105

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

1. Union of the Romanian Principalities : суббота, 24 январь, 2105
2. Pentecost Sunday : суббота, 23 май, 2105
3. Pentecost Monday : воскресенье, 24 май, 2105
4. Assumption : суббота, 15 август, 2105
5. Boxing day : суббота, 26 декабрь, 2105