Определить период

...

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 6 public holidays that do not fall during a weekend and we obtain 255 working days in 1998.

Here is the list of these 6 public holidays:

1. Jour de l'An : четверг, 1 январь, 1998
2. Vendredi Saint : пятница, 10 апрель, 1998
3. Lundi de Pâques : понедельник, 13 апрель, 1998
4. Jeudi de l'Ascension : четверг, 21 май, 1998
5. Lundi de la Pentecôte : понедельник, 1 июнь, 1998
6. Noël : пятница, 25 декабрь, 1998

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

1. Fête nationale suisse : суббота, 1 август, 1998
2. Saint Étienne : суббота, 26 декабрь, 1998