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How many working days in year 1967?

Here is the detail of the calculation:

Because 1967 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 11 public holidays that do not fall during a weekend and we obtain 249 working days in 1967.

Here is the list of these 11 public holidays:

1. New Year's Day (observance) : понедельник, январь 2, 1967
2. Martin Luther King Day : понедельник, январь 16, 1967
3. Washington's Birthday : понедельник, февраль 20, 1967
4. Memorial Day : понедельник, май 29, 1967
5. Juneteenth National Independence Day : понедельник, июнь 19, 1967
6. Independence Day : вторник, июль 4, 1967
7. Labor Day : понедельник, сентябрь 4, 1967
8. Columbus Day : понедельник, октябрь 9, 1967
9. Veterans Day (observance) : пятница, ноябрь 10, 1967
10. Thanksgiving : четверг, ноябрь 23, 1967
11. Christmas : понедельник, декабрь 25, 1967

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

1. New Year's Day : воскресенье, январь 1, 1967
2. Veterans Day : суббота, ноябрь 11, 1967
3. Christmas Eve : воскресенье, декабрь 24, 1967