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How many working days in year 1983?

Here is the detail of the calculation:

Because 1983 is not a leap year, it has 365 days.

Let's remove 53 saturdays and 52 sundays. It remains 260 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 253 working days in 1983.

Here is the list of these 7 public holidays:

1. Maundy Thursday : четверг, 31 март, 1983
2. Good Friday : пятница, 1 апрель, 1983
3. Easter Monday : понедельник, 4 апрель, 1983
4. General Prayer Day : пятница, 29 апрель, 1983
5. Ascension Day : четверг, 12 май, 1983
6. Whit Monday : понедельник, 23 май, 1983
7. Boxing Day : понедельник, 26 декабрь, 1983

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

1. New Year's Day : суббота, 1 январь, 1983
2. Easter Sunday : воскресенье, 3 апрель, 1983
3. Pentecost : воскресенье, 22 май, 1983
4. Christmas Day : воскресенье, 25 декабрь, 1983