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How many working days in year 2100?

Here is the detail of the calculation:

Because 2100 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 8 public holidays that do not fall during a weekend and we obtain 252 working days in 2100.

Here is the list of these 8 public holidays:

1. Purim : четверг, 25 март, 2100
2. Yom Ha-Atzmaut : четверг, 13 май, 2100
3. Shavuot : воскресенье, 13 июнь, 2100
4. Rosh Hashanah : понедельник, 4 октябрь, 2100
5. Rosh Hashanah : вторник, 5 октябрь, 2100
6. Yom Kippur : среда, 13 октябрь, 2100
7. Sukkot : понедельник, 18 октябрь, 2100
8. Shemini Atzeret / Simchat Torah : понедельник, 25 октябрь, 2100

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

1. Pesach : суббота, 24 апрель, 2100
2. Shvi'i shel Pesach : пятница, 30 апрель, 2100