Define a period

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How many working days in year 1976?

Here is the detail of the calculation:

Because 1976 is a leap year, it has 366 days.

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

Now, let's remove 6 public holidays that do not fall during a weekend and we obtain 256 working days in 1976.

Here is the list of these 6 public holidays:

1. New Year's Day : Thursday, 1 January, 1976
2. Epiphany : Tuesday, 6 January, 1976
3. Good Friday : Friday, 16 April, 1976
4. Easter Monday : Monday, 19 April, 1976
5. Ascension Day : Thursday, 27 May, 1976
6. Independence Day : Monday, 6 December, 1976

And here are the 7 public holidays falling on a weekend:

1. Easter Sunday : Sunday, 18 April, 1976
2. May Day : Saturday, 1 May, 1976
3. Whit Sunday : Sunday, 6 June, 1976
4. Midsummer Day : Saturday, 26 June, 1976
5. All Saints' Day : Saturday, 6 November, 1976
6. Christmas Day : Saturday, 25 December, 1976
7. St Stephen's Day : Sunday, 26 December, 1976