Определить период

...

How many working days in year 2015?

Here is the detail of the calculation:

Because 2015 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 9 public holidays that do not fall during a weekend and we obtain 252 working days in 2015.

Here is the list of these 9 public holidays:

1. New Year's Day : четверг, 1 январь, 2015
2. St. Patrick's Day : вторник, 17 март, 2015
3. Easter Monday : понедельник, 6 апрель, 2015
4. Early May Bank Holiday : понедельник, 4 май, 2015
5. June Bank Holiday : понедельник, 1 июнь, 2015
6. Summer Bank Holiday : понедельник, 3 август, 2015
7. October Bank Holiday : понедельник, 26 октябрь, 2015
8. Christmas Day : пятница, 25 декабрь, 2015
9. St. Stephen's Day (substitute day) : понедельник, 28 декабрь, 2015