Define a period

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How many working days in year 2016?

Here is the detail of the calculation:

Because 2016 is a leap year, it has 366 days.

Let's remove 53 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 2016.

Here is the list of these 6 public holidays:

1. New Year Holiday : Friday, 1 January, 2016
2. Orthodox Christmas : Thursday, 7 January, 2016
3. Women's Day : Tuesday, 8 March, 2016
4. Victory Day : Monday, 9 May, 2016
5. Radonitsa : Tuesday, 10 May, 2016
6. October Revolution Day : Monday, 7 November, 2016

And here are the 4 public holidays falling on a weekend:

1. New Year Holiday : Saturday, 2 January, 2016
2. Labour Day : Sunday, 1 May, 2016
3. Independence Day : Sunday, 3 July, 2016
4. Christmas Day : Sunday, 25 December, 2016