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How many working days in year 1967?

Here is the detail of the calculation:

Because 1967 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 9 public holidays that do not fall during a weekend and we obtain 251 working days in 1967.

Here is the list of these 9 public holidays:

1. Karfreitag : пятница, 24 март, 1967
2. Ostermontag : понедельник, 27 март, 1967
3. Tag der Arbeit : понедельник, 1 май, 1967
4. Christi Himmelfahrt : четверг, 4 май, 1967
5. Pfingstmontag : понедельник, 15 май, 1967
6. Fronleichnam : четверг, 25 май, 1967
7. Tag der Deutschen Einheit : вторник, 3 октябрь, 1967
8. Weihnachtstag : понедельник, 25 декабрь, 1967
9. Zweiter Weihnachtsfeiertag : вторник, 26 декабрь, 1967

And here is the public holiday falling on a weekend:

1. Neujahrstag : воскресенье, 1 январь, 1967