Define a period

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How many working days in year 2021?

Here is the detail of the calculation:

Because 2021 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 10 public holidays that do not fall during a weekend and we obtain 251 working days in 2021.

Here is the list of these 10 public holidays:

1. Neujahrstag : Friday, 1 January, 2021
2. Heilige Drei Könige : Wednesday, 6 January, 2021
3. Ostermontag : Monday, 5 April, 2021
4. Christi Himmelfahrt : Thursday, 13 May, 2021
5. Pfingstmontag : Monday, 24 May, 2021
6. Fronleichnam : Thursday, 3 June, 2021
7. Nationalfeiertag : Tuesday, 26 October, 2021
8. Allerheiligen : Monday, 1 November, 2021
9. St. Martin : Thursday, 11 November, 2021
10. Mariä Empfängnis : Wednesday, 8 December, 2021

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

1. Staatsfeiertag : Saturday, 1 May, 2021
2. Mariä Himmelfahrt : Sunday, 15 August, 2021
3. Weihnachten : Saturday, 25 December, 2021
4. Stefanitag : Sunday, 26 December, 2021