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How many working days in year 1990?

Here is the detail of the calculation:

Because 1990 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 1990.

Here is the list of these 8 public holidays:

1. New Year's Day : понедельник, 1 январь, 1990
2. Republic Day : пятница, 26 январь, 1990
3. Maharaja Shivaji Jayanti : понедельник, 19 февраль, 1990
4. Good Friday : пятница, 13 апрель, 1990
5. Independence Day : среда, 15 август, 1990
6. Mahatma Gandhi's Birthday : вторник, 2 октябрь, 1990
7. Christmas Eve : понедельник, 24 декабрь, 1990
8. Christmas : вторник, 25 декабрь, 1990

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

1. Makar Sankranti : воскресенье, 14 январь, 1990
2. Mesadi : суббота, 14 апрель, 1990