Define a period

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How many working days in year 2015?

Here is the detail of the calculation:

Because 2015 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 7 public holidays that do not fall during a weekend and we obtain 254 working days in 2015.

Here is the list of these 7 public holidays:

1. New Year's Day : Thursday, 1 January, 2015
2. Good Friday : Friday, 3 April, 2015
3. Easter Monday : Monday, 6 April, 2015
4. Labour Day : Friday, 1 May, 2015
5. Establishment Day : Wednesday, 1 July, 2015
6. National Day : Thursday, 1 October, 2015
7. Christmas Day : Friday, 25 December, 2015

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

1. Holy Saturday : Saturday, 4 April, 2015
2. Boxing Day : Saturday, 26 December, 2015