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How many working days in year 1988?

Here is the detail of the calculation:

Because 1988 is a leap year, it has 366 days.

Let's remove 53 saturdays and 52 sundays. It remains 261 days.

Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 251 working days in 1988.

Here is the list of these 10 public holidays:

1. New Year's Day : пятница, 1 январь, 1988
2. Human Rights Day : понедельник, 21 март, 1988
3. Good Friday : пятница, 1 апрель, 1988
4. Family Day : понедельник, 4 апрель, 1988
5. Freedom Day : среда, 27 апрель, 1988
6. Workers' Day observance : понедельник, 2 май, 1988
7. Youth Day : четверг, 16 июнь, 1988
8. National Women's Day : вторник, 9 август, 1988
9. Day of Reconciliation : пятница, 16 декабрь, 1988
10. Day of Goodwill : понедельник, 26 декабрь, 1988

And here are the 3 public holidays falling on a weekend:

1. Workers' Day : воскресенье, 1 май, 1988
2. Heritage Day : суббота, 24 сентябрь, 1988
3. Christmas Day : воскресенье, 25 декабрь, 1988