Define a period

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How many working days in year 1974?

Here is the detail of the calculation:

Because 1974 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 1974.

Here is the list of these 8 public holidays:

1. New Year's Day : Tuesday, 1 January, 1974
2. Good Friday : Friday, 12 April, 1974
3. Easter Monday : Monday, 15 April, 1974
4. Labour Day : Wednesday, 1 May, 1974
5. Establishment Day : Monday, 1 July, 1974
6. National Day : Tuesday, 1 October, 1974
7. Christmas Day : Wednesday, 25 December, 1974
8. Boxing Day : Thursday, 26 December, 1974

And here is the public holiday falling on a weekend:

1. Holy Saturday : Saturday, 13 April, 1974