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How many working days in year 1940?

Here is the detail of the calculation:

Because 1940 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 252 working days in 1940.

Here is the list of these 10 public holidays:

1. Neujahrstag : понедельник, 1 январь, 1940
2. Karfreitag : пятница, 22 март, 1940
3. Ostermontag : понедельник, 25 март, 1940
4. Tag der Arbeit : среда, 1 май, 1940
5. Christi Himmelfahrt : четверг, 2 май, 1940
6. Pfingstmontag : понедельник, 13 май, 1940
7. Tag der Deutschen Einheit : четверг, 3 октябрь, 1940
8. Reformationstag : четверг, 31 октябрь, 1940
9. Weihnachtstag : среда, 25 декабрь, 1940
10. Zweiter Weihnachtsfeiertag : четверг, 26 декабрь, 1940

And here is the public holiday falling on a weekend:

1. Heilige Drei Könige : суббота, 6 январь, 1940