Define a period

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How many working days in year 2140?

Here is the detail of the calculation:

Because 2140 is a leap year, it has 366 days.

Let's remove 53 saturdays and 52 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 2140.

Here is the list of these 11 public holidays:

1. New Year's Day : Friday, 1 January, 2140
2. Australia Day : Tuesday, 26 January, 2140
3. Canberra Day : Monday, 14 March, 2140
4. Good Friday : Friday, 1 April, 2140
5. Easter Monday : Monday, 4 April, 2140
6. Anzac Day : Monday, 25 April, 2140
7. Reconciliation Day : Monday, 30 May, 2140
8. King's Birthday : Monday, 13 June, 2140
9. Labour Day : Monday, 3 October, 2140
10. Christmas Day Observance : Monday, 26 December, 2140
11. Boxing Day Observance : Tuesday, 27 December, 2140

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

1. Easter Saturday : Saturday, 2 April, 2140
2. Easter Sunday : Sunday, 3 April, 2140
3. Christmas Day : Sunday, 25 December, 2140