Define a period

...

How many working days in year 2002?

Here is the detail of the calculation:

Because 2002 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 9 public holidays that do not fall during a weekend and we obtain 252 working days in 2002.

Here is the list of these 9 public holidays:

1. New Year's Day : Tuesday, 1 January, 2002
2. Easter Monday : Monday, 1 April, 2002
3. Labor Day : Wednesday, 1 May, 2002
4. Ascension Day : Thursday, 9 May, 2002
5. Pentecost Monday : Monday, 20 May, 2002
6. Assumption of Mary : Thursday, 15 August, 2002
7. All Saints' Day : Friday, 1 November, 2002
8. Armistice Day : Monday, 11 November, 2002
9. Christmas Day : Wednesday, 25 December, 2002

And here is the public holiday falling on a weekend:

1. National Day : Sunday, 21 July, 2002