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How many working days in year 1972?

Here is the detail of the calculation:

Because 1972 is a leap year, it has 366 days.

Let's remove 53 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 1972.

Here is the list of these 10 public holidays:

1. Heilige Drei Könige : четверг, 6 январь, 1972
2. Karfreitag : пятница, 31 март, 1972
3. Ostermontag : понедельник, 3 апрель, 1972
4. Tag der Arbeit : понедельник, 1 май, 1972
5. Christi Himmelfahrt : четверг, 11 май, 1972
6. Pfingstmontag : понедельник, 22 май, 1972
7. Tag der Deutschen Einheit : вторник, 3 октябрь, 1972
8. Reformationstag : вторник, 31 октябрь, 1972
9. Weihnachtstag : понедельник, 25 декабрь, 1972
10. Zweiter Weihnachtsfeiertag : вторник, 26 декабрь, 1972

And here is the public holiday falling on a weekend:

1. Neujahrstag : суббота, 1 январь, 1972