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How many working days in year 1930?

Here is the detail of the calculation:

Because 1930 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 1930.

Here is the list of these 8 public holidays:

1. Pesach : воскресенье, 13 апрель, 1930
2. Yom Ha-Atzmaut : четверг, 1 май, 1930
3. Shavuot : понедельник, 2 июнь, 1930
4. Rosh Hashanah : вторник, 23 сентябрь, 1930
5. Rosh Hashanah : среда, 24 сентябрь, 1930
6. Yom Kippur : четверг, 2 октябрь, 1930
7. Sukkot : вторник, 7 октябрь, 1930
8. Shemini Atzeret / Simchat Torah : вторник, 14 октябрь, 1930

And here is the public holiday falling on a weekend:

1. Shvi'i shel Pesach : суббота, 19 апрель, 1930