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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. New Year's Day (substitute day) : понедельник, 3 январь, 1972
2. St. Patrick's Day : пятница, 17 март, 1972
3. Good Friday : пятница, 31 март, 1972
4. Easter Monday : понедельник, 3 апрель, 1972
5. Early May Bank Holiday : понедельник, 1 май, 1972
6. Spring Bank Holiday : понедельник, 29 май, 1972
7. Orangemen's Day : среда, 12 июль, 1972
8. Late Summer Bank Holiday : понедельник, 28 август, 1972
9. Christmas Day : понедельник, 25 декабрь, 1972
10. Boxing Day : вторник, 26 декабрь, 1972