Define a period

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How many working days in year 2057?

Here is the detail of the calculation:

Because 2057 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 11 public holidays that do not fall during a weekend and we obtain 250 working days in 2057.

Here is the list of these 11 public holidays:

1. New Year's Day : Monday, 1 January, 2057
2. National Day : Thursday, 15 March, 2057
3. Good Friday : Friday, 20 April, 2057
4. Easter Monday : Monday, 23 April, 2057
5. Labour Day : Tuesday, 1 May, 2057
6. Pentecost Monday : Monday, 11 June, 2057
7. State Foundation Day : Monday, 20 August, 2057
8. National Day : Tuesday, 23 October, 2057
9. All Saints' Day : Thursday, 1 November, 2057
10. Christmas Day : Tuesday, 25 December, 2057
11. Second Day of Christmas : Wednesday, 26 December, 2057

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

1. Easter Sunday : Sunday, 22 April, 2057
2. Pentecost Sunday : Sunday, 10 June, 2057