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How many working days in year 1911?

Here is the detail of the calculation:

Because 1911 is not a leap year, it has 365 days.

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

Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 250 working days in 1911.

Here is the list of these 10 public holidays:

1. Karfreitag : пятница, 14 апрель, 1911
2. Ostermontag : понедельник, 17 апрель, 1911
3. Tag der Arbeit : понедельник, 1 май, 1911
4. Christi Himmelfahrt : четверг, 25 май, 1911
5. Pfingstmontag : понедельник, 5 июнь, 1911
6. Tag der Deutschen Einheit : вторник, 3 октябрь, 1911
7. Reformationstag : вторник, 31 октябрь, 1911
8. Buß- und Bettag : среда, 22 ноябрь, 1911
9. Weihnachtstag : понедельник, 25 декабрь, 1911
10. Zweiter Weihnachtsfeiertag : вторник, 26 декабрь, 1911

And here is the public holiday falling on a weekend:

1. Neujahrstag : воскресенье, 1 январь, 1911