Define a period

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How many working days in year 2012?

Here is the detail of the calculation:

Because 2012 is a leap year, it has 366 days.

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

Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 250 working days in 2012.

Here is the list of these 11 public holidays:

1. New Year's Day Observance : Monday, 2 January, 2012
2. Australia Day : Thursday, 26 January, 2012
3. Canberra Day : Monday, 12 March, 2012
4. Good Friday : Friday, 6 April, 2012
5. Easter Monday : Monday, 9 April, 2012
6. Anzac Day : Wednesday, 25 April, 2012
7. King's Birthday : Monday, 11 June, 2012
8. Labour Day : Monday, 1 October, 2012
9. Family & Community Day : Monday, 8 October, 2012
10. Christmas Day : Tuesday, 25 December, 2012
11. Boxing Day : Wednesday, 26 December, 2012

And here are the 3 public holidays falling on a weekend:

1. New Year's Day : Sunday, 1 January, 2012
2. Easter Saturday : Saturday, 7 April, 2012
3. Easter Sunday : Sunday, 8 April, 2012