Определить период

...

How many working days in year 2054?

Here is the detail of the calculation:

Because 2054 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 6 public holidays that do not fall during a weekend and we obtain 255 working days in 2054.

Here is the list of these 6 public holidays:

1. Purim : вторник, 24 март, 2054
2. Pesach : четверг, 23 апрель, 2054
3. Shvi'i shel Pesach : среда, 29 апрель, 2054
4. Yom Ha-Atzmaut : среда, 13 май, 2054
5. Rosh Hashanah : воскресенье, 4 октябрь, 2054
6. Yom Kippur : понедельник, 12 октябрь, 2054

And here are the 4 public holidays falling on a weekend:

1. Shavuot : пятница, 12 июнь, 2054
2. Rosh Hashanah : суббота, 3 октябрь, 2054
3. Sukkot : суббота, 17 октябрь, 2054
4. Shemini Atzeret / Simchat Torah : суббота, 24 октябрь, 2054