Define a period

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How many working days in year 2018?

Here is the detail of the calculation:

Because 2018 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 9 public holidays that do not fall during a weekend and we obtain 252 working days in 2018.

Here is the list of these 9 public holidays:

1. New Year Holiday : Monday, 1 January, 2018
2. New Year Holiday : Tuesday, 2 January, 2018
3. Women's Day : Thursday, 8 March, 2018
4. Radonitsa : Tuesday, 17 April, 2018
5. Labour Day : Tuesday, 1 May, 2018
6. Victory Day : Wednesday, 9 May, 2018
7. Independence Day : Tuesday, 3 July, 2018
8. October Revolution Day : Wednesday, 7 November, 2018
9. Christmas Day : Tuesday, 25 December, 2018

And here is the public holiday falling on a weekend:

1. Orthodox Christmas : Sunday, 7 January, 2018