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How many working days in year 1987?

Here is the detail of the calculation:

Because 1987 is not a leap year, it has 365 days.

Let's remove 52 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 1987.

Here is the list of these 10 public holidays:

1. New Year's Day : четверг, 1 январь, 1987
2. Good Friday : пятница, 17 апрель, 1987
3. Easter Monday : понедельник, 20 апрель, 1987
4. Early May Bank Holiday : понедельник, 4 май, 1987
5. Spring Bank Holiday : понедельник, 25 май, 1987
6. Late Summer Bank Holiday : понедельник, 31 август, 1987
7. Christmas Eve : четверг, 24 декабрь, 1987
8. Christmas Day : пятница, 25 декабрь, 1987
9. Boxing Day (substitute day) : понедельник, 28 декабрь, 1987
10. New Year's Eve : четверг, 31 декабрь, 1987