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How many working days in year 1997?

Here is the detail of the calculation:

Because 1997 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 1997.

Here is the list of these 10 public holidays:

1. New Year's Day : среда, январь 1, 1997
2. Martin Luther King Day : понедельник, январь 20, 1997
3. Washington's Birthday : понедельник, февраль 17, 1997
4. Good Friday : пятница, март 28, 1997
5. Memorial Day : понедельник, май 26, 1997
6. Independence Day : пятница, июль 4, 1997
7. Labor Day : понедельник, сентябрь 1, 1997
8. Veterans Day : вторник, ноябрь 11, 1997
9. Thanksgiving : четверг, ноябрь 27, 1997
10. Christmas : четверг, декабрь 25, 1997