Define a period

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How many working days in year 2013?

Here is the detail of the calculation:

Because 2013 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 245 public holidays that do not fall during a weekend and we obtain 245 working days in 2013.

Here is the list of these 245 public holidays:

1. New Year's Day : Tuesday, 1 January, 2013
2. Lunar New Year : Monday, 11 February, 2013
3. Lunar New Year : Tuesday, 12 February, 2013
4. Lunar New Year : Wednesday, 13 February, 2013
5. Good Friday : Friday, 29 March, 2013
6. Easter Monday : Monday, 1 April, 2013
7. Ching Ming Festival : Thursday, 4 April, 2013
8. Labour Day : Wednesday, 1 May, 2013
9. Birthday of the Buddha : Friday, 17 May, 2013
10. Tuen Ng Festival : Wednesday, 12 June, 2013
11. Establishment Day : Monday, 1 July, 2013
12. Mid-Autumn Festival : Friday, 20 September, 2013
13. National Day : Tuesday, 1 October, 2013
14. Chung Yeung Festival : Monday, 14 October, 2013
15. Christmas Day : Wednesday, 25 December, 2013
16. Boxing Day : Thursday, 26 December, 2013

And here is the public holiday falling on a weekend:

1. Holy Saturday : Saturday, 30 March, 2013