Define a period

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How many working days in year 2057?

Here is the detail of the calculation:

Because 2057 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 11 public holidays that do not fall during a weekend and we obtain 250 working days in 2057.

Here is the list of these 11 public holidays:

1. New Year's Day : Monday, 1 January, 2057
2. Australia Day : Friday, 26 January, 2057
3. Canberra Day : Monday, 12 March, 2057
4. Good Friday : Friday, 20 April, 2057
5. Easter Monday : Monday, 23 April, 2057
6. Anzac Day : Wednesday, 25 April, 2057
7. Reconciliation Day : Monday, 28 May, 2057
8. King's Birthday : Monday, 11 June, 2057
9. Labour Day : Monday, 1 October, 2057
10. Christmas Day : Tuesday, 25 December, 2057
11. Boxing Day : Wednesday, 26 December, 2057

And here are the 2 public holidays falling on a weekend:

1. Easter Saturday : Saturday, 21 April, 2057
2. Easter Sunday : Sunday, 22 April, 2057