Define a period

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How many working days in year 2015?

Here is the detail of the calculation:

Because 2015 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 22 public holidays that do not fall during a weekend and we obtain 239 working days in 2015.

Here is the list of these 22 public holidays:

1. New Year's Day : Thursday, 1 January, 2015
2. Makar Sankranti : Wednesday, 14 January, 2015
3. Republic Day : Monday, 26 January, 2015
4. Maha Shivaratri : Tuesday, 17 February, 2015
5. Maharaja Shivaji Jayanti : Thursday, 19 February, 2015
6. Holi : Friday, 6 March, 2015
7. Ram Navami : Friday, 27 March, 2015
8. Basanta Panchami : Thursday, 2 April, 2015
9. Good Friday : Friday, 3 April, 2015
10. Mesadi : Tuesday, 14 April, 2015
11. Buddha Purnima : Monday, 4 May, 2015
12. Id-ul-Fitr : Friday, 17 July, 2015
13. Ganesh Chaturthi : Thursday, 17 September, 2015
14. Mahatma Gandhi's Birthday : Friday, 2 October, 2015
15. Maha Ashtami : Wednesday, 21 October, 2015
16. Dussehra (Vijaya Dashami) : Thursday, 22 October, 2015
17. Karaka Chaturthi (Karva Chouth) : Friday, 30 October, 2015
18. Naraka Chaturdasi : Tuesday, 10 November, 2015
19. Diwali (Deepavali) : Wednesday, 11 November, 2015
20. Bhai Duj : Friday, 13 November, 2015
21. Christmas Eve : Thursday, 24 December, 2015
22. Christmas : Friday, 25 December, 2015

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

1. Independence Day : Saturday, 15 August, 2015
2. Raksha Bandhan : Saturday, 29 August, 2015
3. Janamashtami (Vaisnava) : Saturday, 5 September, 2015