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How many working days in year 1998?

Here is the detail of the calculation:

Because 1998 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 5 public holidays that do not fall during a weekend and we obtain 256 working days in 1998.

Here is the list of these 5 public holidays:

1. New Year's Day : четверг, 1 январь, 1998
2. Good Friday : пятница, 10 апрель, 1998
3. Labour Day : пятница, 1 май, 1998
4. National Day : понедельник, 10 август, 1998
5. Christmas Day : пятница, 25 декабрь, 1998

And here is the public holiday falling on a weekend:

1. National Day : воскресенье, 9 август, 1998