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How many working days in year 2015?

Here is the detail of the calculation:

Because 2015 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 7 public holidays that do not fall during a weekend and we obtain 254 working days in 2015.

Here is the list of these 7 public holidays:

1. Yom Ha-Atzmaut : четверг, 23 апрель, 2015
2. Shavuot : воскресенье, 24 май, 2015
3. Rosh Hashanah : понедельник, 14 сентябрь, 2015
4. Rosh Hashanah : вторник, 15 сентябрь, 2015
5. Yom Kippur : среда, 23 сентябрь, 2015
6. Sukkot : понедельник, 28 сентябрь, 2015
7. Shemini Atzeret / Simchat Torah : понедельник, 5 октябрь, 2015

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

1. Pesach : суббота, 4 апрель, 2015
2. Shvi'i shel Pesach : пятница, 10 апрель, 2015