Определить период

...

How many working days in year 1963?

Here is the detail of the calculation:

Because 1963 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 8 public holidays that do not fall during a weekend and we obtain 253 working days in 1963.

Here is the list of these 8 public holidays:

1. New Year's Day : вторник, 1 январь, 1963
2. Makar Sankranti : понедельник, 14 январь, 1963
3. Maharaja Shivaji Jayanti : вторник, 19 февраль, 1963
4. Good Friday : пятница, 12 апрель, 1963
5. Independence Day : четверг, 15 август, 1963
6. Mahatma Gandhi's Birthday : среда, 2 октябрь, 1963
7. Christmas Eve : вторник, 24 декабрь, 1963
8. Christmas : среда, 25 декабрь, 1963

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

1. Republic Day : суббота, 26 январь, 1963
2. Mesadi : воскресенье, 14 апрель, 1963