Define a period

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How many working days in year 1988?

Here is the detail of the calculation:

Because 1988 is a leap year, it has 366 days.

Let's remove 53 saturdays and 52 sundays. It remains 261 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 254 working days in 1988.

Here is the list of these 7 public holidays:

1. New Year's Day : Friday, 1 January, 1988
2. Good Friday : Friday, 1 April, 1988
3. Easter Monday : Monday, 4 April, 1988
4. Labour Day : Monday, 2 May, 1988
5. Establishment Day : Friday, 1 July, 1988
6. Christmas Day : Monday, 26 December, 1988
7. Boxing Day : Tuesday, 27 December, 1988

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

1. Holy Saturday : Saturday, 2 April, 1988
2. Labour Day : Sunday, 1 May, 1988
3. National Day : Saturday, 1 October, 1988
4. Christmas Day : Sunday, 25 December, 1988