Определить период

...

How many working days in year 2103?

Here is the detail of the calculation:

Because 2103 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 8 public holidays that do not fall during a weekend and we obtain 253 working days in 2103.

Here is the list of these 8 public holidays:

1. Pesach : воскресенье, 22 апрель, 2103
2. Yom Ha-Atzmaut : четверг, 10 май, 2103
3. Shavuot : понедельник, 11 июнь, 2103
4. Rosh Hashanah : вторник, 2 октябрь, 2103
5. Rosh Hashanah : среда, 3 октябрь, 2103
6. Yom Kippur : четверг, 11 октябрь, 2103
7. Sukkot : вторник, 16 октябрь, 2103
8. Shemini Atzeret / Simchat Torah : вторник, 23 октябрь, 2103

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

1. Purim : пятница, 23 март, 2103
2. Shvi'i shel Pesach : суббота, 28 апрель, 2103