Define a period

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How many working days in year 1973?

Here is the detail of the calculation:

Because 1973 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 8 public holidays that do not fall during a weekend and we obtain 253 working days in 1973.

Here is the list of these 8 public holidays:

1. New Year's Day : Monday, 1 January, 1973
2. Good Friday : Friday, 20 April, 1973
3. Easter Monday : Monday, 23 April, 1973
4. Labour Day : Tuesday, 1 May, 1973
5. Establishment Day : Monday, 2 July, 1973
6. National Day : Monday, 1 October, 1973
7. Christmas Day : Tuesday, 25 December, 1973
8. Boxing Day : Wednesday, 26 December, 1973

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

1. Holy Saturday : Saturday, 21 April, 1973
2. Establishment Day : Sunday, 1 July, 1973