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How many working days in year 1910?

Here is the detail of the calculation:

Because 1910 is not a leap year, it has 365 days.

Let's remove 53 saturdays and 52 sundays. It remains 260 days.

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 252 working days in 1910.

Here is the list of these 8 public holidays:

1. Karfreitag : пятница, 25 март, 1910
2. Ostermontag : понедельник, 28 март, 1910
3. Christi Himmelfahrt : четверг, 5 май, 1910
4. Pfingstmontag : понедельник, 16 май, 1910
5. Tag der Deutschen Einheit : понедельник, 3 октябрь, 1910
6. Reformationstag : понедельник, 31 октябрь, 1910
7. Buß- und Bettag : среда, 16 ноябрь, 1910
8. Zweiter Weihnachtsfeiertag : понедельник, 26 декабрь, 1910

And here are the 3 public holidays falling on a weekend:

1. Neujahrstag : суббота, 1 январь, 1910
2. Tag der Arbeit : воскресенье, 1 май, 1910
3. Weihnachtstag : воскресенье, 25 декабрь, 1910