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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. New Year's Day (substitute day) : понедельник, 2 январь, 1989
2. St. Patrick's Day : пятница, 17 март, 1989
3. Good Friday : пятница, 24 март, 1989
4. Easter Monday : понедельник, 27 март, 1989
5. Early May Bank Holiday : понедельник, 1 май, 1989
6. Spring Bank Holiday : понедельник, 29 май, 1989
7. Orangemen's Day : среда, 12 июль, 1989
8. Late Summer Bank Holiday : понедельник, 28 август, 1989
9. Christmas Day : понедельник, 25 декабрь, 1989
10. Boxing Day : вторник, 26 декабрь, 1989