Определить период

...

How many working days in year 2103?

Here is the detail of the calculation:

Because 2103 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 2103.

Here is the list of these 8 public holidays:

1. New Year's Day : понедельник, 1 январь, 2103
2. Independence Movement Day : четверг, 1 март, 2103
3. Children's Day : понедельник, 7 май, 2103
4. Memorial Day : среда, 6 июнь, 2103
5. Liberation Day : среда, 15 август, 2103
6. National Foundation Day : среда, 3 октябрь, 2103
7. Hangeul Day : вторник, 9 октябрь, 2103
8. Christmas Day : вторник, 25 декабрь, 2103

And here is the public holiday falling on a weekend:

1. Children's Day : суббота, 5 май, 2103