Define a period

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How many working days in year 2051?

Here is the detail of the calculation:

Because 2051 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 251 working days in 2051.

Here is the list of these 9 public holidays:

1. Epiphany : Friday, 6 January, 2051
2. Easter Monday : Monday, 3 April, 2051
3. Labour Day : Monday, 1 May, 2051
4. Constitution Day : Wednesday, 3 May, 2051
5. Corpus Christi : Thursday, 1 June, 2051
6. Assumption of Mary : Tuesday, 15 August, 2051
7. All Saints' Day : Wednesday, 1 November, 2051
8. Christmas Day : Monday, 25 December, 2051
9. Boxing Day : Tuesday, 26 December, 2051

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

1. New Year's Day : Sunday, 1 January, 2051
2. Easter Sunday : Sunday, 2 April, 2051
3. Pentecost Sunday : Sunday, 21 May, 2051
4. Independence Day : Saturday, 11 November, 2051