Define a period

...

How many working days in year 1952?

Here is the detail of the calculation:

Because 1952 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 252 working days in 1952.

Here is the list of these 10 public holidays:

1. New Year's Day : Tuesday, 1 January, 1952
2. Easter Monday : Monday, 14 April, 1952
3. Labor Day : Thursday, 1 May, 1952
4. Iris Day : Thursday, 8 May, 1952
5. Ascension Day : Thursday, 22 May, 1952
6. Pentecost Monday : Monday, 2 June, 1952
7. National Day : Monday, 21 July, 1952
8. Assumption of Mary : Friday, 15 August, 1952
9. Armistice Day : Tuesday, 11 November, 1952
10. Christmas Day : Thursday, 25 December, 1952

And here is the public holiday falling on a weekend:

1. All Saints' Day : Saturday, 1 November, 1952