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How many working days in year 1929?

Here is the detail of the calculation:

Because 1929 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 1929.

Here is the list of these 6 public holidays:

1. Purim : вторник, 26 март, 1929
2. Pesach : четверг, 25 апрель, 1929
3. Shvi'i shel Pesach : среда, 1 май, 1929
4. Yom Ha-Atzmaut : среда, 15 май, 1929
5. Rosh Hashanah : воскресенье, 6 октябрь, 1929
6. Yom Kippur : понедельник, 14 октябрь, 1929

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

1. Shavuot : пятница, 14 июнь, 1929
2. Rosh Hashanah : суббота, 5 октябрь, 1929
3. Sukkot : суббота, 19 октябрь, 1929
4. Shemini Atzeret / Simchat Torah : суббота, 26 октябрь, 1929