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How many working days in year 1989?

Here is the detail of the calculation:

Because 1989 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 1989.

Here is the list of these 10 public holidays:

1. Epiphany : пятница, 6 январь, 1989
2. Easter Monday : понедельник, 27 март, 1989
3. Labour Day : понедельник, 1 май, 1989
4. Corpus Christi : четверг, 25 май, 1989
5. National Day : вторник, 30 май, 1989
6. Anti-Fascist Struggle Day : четверг, 22 июнь, 1989
7. Assumption Day : вторник, 15 август, 1989
8. All Saints' Day : среда, 1 ноябрь, 1989
9. Christmas Day : понедельник, 25 декабрь, 1989
10. St. Stephen's Day : вторник, 26 декабрь, 1989

And here are the 4 public holidays falling on a weekend:

1. New Year's Day : воскресенье, 1 январь, 1989
2. Easter : воскресенье, 26 март, 1989
3. Victory and Homeland Thanksgiving Day : суббота, 5 август, 1989
4. Remembrance Day : суббота, 18 ноябрь, 1989