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How many working days in year 1978?

Here is the detail of the calculation:

Because 1978 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 1978.

Here is the list of these 10 public holidays:

1. New Year's Day : понедельник, 2 январь, 1978
2. National day : пятница, 3 март, 1978
3. Orthodox Easter Friday : пятница, 28 апрель, 1978
4. Orthodox Easter Monday : понедельник, 1 май, 1978
5. St. George's Day (observance) : понедельник, 8 май, 1978
6. Culture and Literacy Day : среда, 24 май, 1978
7. Unification Day : среда, 6 сентябрь, 1978
8. Independence Day : пятница, 22 сентябрь, 1978
9. Christmas Day : понедельник, 25 декабрь, 1978
10. Boxing day : вторник, 26 декабрь, 1978

And here are the 5 public holidays falling on a weekend:

1. New Year's Day : воскресенье, 1 январь, 1978
2. Orthodox Easter Saturday : суббота, 29 апрель, 1978
3. Orthodox Easter Sunday : воскресенье, 30 апрель, 1978
4. St. George's Day : суббота, 6 май, 1978
5. Christmas Eve : воскресенье, 24 декабрь, 1978