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How many working days in year 2144?

Here is the detail of the calculation:

Because 2144 is a leap year, it has 366 days.

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

Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 251 working days in 2144.

Here is the list of these 11 public holidays:

1. New Year's Day : среда, январь 1, 2144
2. Martin Luther King Day : понедельник, январь 20, 2144
3. Washington's Birthday : понедельник, февраль 17, 2144
4. Seward's Day : понедельник, март 30, 2144
5. Memorial Day : понедельник, май 25, 2144
6. Juneteenth National Independence Day : пятница, июнь 19, 2144
7. Independence Day (observance) : пятница, июль 3, 2144
8. Labor Day : понедельник, сентябрь 7, 2144
9. Veterans Day : среда, ноябрь 11, 2144
10. Thanksgiving : четверг, ноябрь 26, 2144
11. Christmas : пятница, декабрь 25, 2144

And here are the 2 public holidays falling on a weekend:

1. Independence Day : суббота, июль 4, 2144
2. Alaska Day : воскресенье, октябрь 18, 2144