Определить период

...

How many working days in year 1992?

Here is the detail of the calculation:

Because 1992 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 14 public holidays that do not fall during a weekend and we obtain 248 working days in 1992.

Here is the list of these 14 public holidays:

1. New Year's Day : среда, январь 1, 1992
2. Martin Luther King Day : понедельник, январь 20, 1992
3. Washington's Birthday : понедельник, февраль 17, 1992
4. Memorial Day : понедельник, май 25, 1992
5. Juneteenth National Independence Day : пятница, июнь 19, 1992
6. Independence Day (observance) : пятница, июль 3, 1992
7. Labor Day : понедельник, сентябрь 7, 1992
8. Election Day : вторник, ноябрь 3, 1992
9. Veterans Day : среда, ноябрь 11, 1992
10. Thanksgiving : четверг, ноябрь 26, 1992
11. Black Friday : пятница, ноябрь 27, 1992
12. Christmas Eve : четверг, декабрь 24, 1992
13. Christmas : пятница, декабрь 25, 1992
14. New Year's Eve : четверг, декабрь 31, 1992

And here is the public holiday falling on a weekend:

1. Independence Day : суббота, июль 4, 1992