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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 6 public holidays that do not fall during a weekend and we obtain 254 working days in 1989.

Here is the list of these 6 public holidays:

1. New Year's Holiday : понедельник, 2 январь, 1989
2. National Day : среда, 15 февраль, 1989
3. National Day Holiday : четверг, 16 февраль, 1989
4. Great Friday : пятница, 28 апрель, 1989
5. Easter Monday : понедельник, 1 май, 1989
6. May Day Holiday : вторник, 2 май, 1989

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

1. New Year's Day : воскресенье, 1 январь, 1989
2. Orthodox Christmas Day : суббота, 7 январь, 1989
3. Orthodox Easter Saturday : суббота, 29 апрель, 1989
4. Easter : воскресенье, 30 апрель, 1989
5. Armistice Day : суббота, 11 ноябрь, 1989