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How many working days in year 2101?

Here is the detail of the calculation:

Because 2101 is not a leap year, it has 365 days.

Let's remove 53 saturdays and 52 sundays. It remains 260 days.

Now, let's remove 5 public holidays that do not fall during a weekend and we obtain 255 working days in 2101.

Here is the list of these 5 public holidays:

1. Orthodox Christmas Day : пятница, 7 январь, 2101
2. National Day : вторник, 15 февраль, 2101
3. National Day Holiday : среда, 16 февраль, 2101
4. May Day Holiday : понедельник, 2 май, 2101
5. Armistice Day : пятница, 11 ноябрь, 2101

And here are the 3 public holidays falling on a weekend:

1. New Year's Day : суббота, 1 январь, 2101
2. New Year's Holiday : воскресенье, 2 январь, 2101
3. May Day : воскресенье, 1 май, 2101