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 35 public holidays that do not fall during a weekend and we obtain 226 working days in 2012.

Here is the list of these 35 public holidays:

1. Guru Gobind Singh Jayanti : Thursday, 5 January, 2012
2. Republic Day : Thursday, 26 January, 2012
3. Guru Ravidas Jayanti : Tuesday, 7 February, 2012
4. Maharshi Dayanand Saraswati Jayanti : Thursday, 16 February, 2012
5. Maha Shivaratri : Monday, 20 February, 2012
6. Holika Dahan (Dolyatra) : Wednesday, 7 March, 2012
7. Holi : Thursday, 8 March, 2012
8. Vaisakhi/Vishu : Tuesday, 13 March, 2012
9. Chaitra Sukhladi/Gudi Padava/Ugadi/Cheti Chand : Friday, 23 March, 2012
10. Mahavir Jayanti : Thursday, 5 April, 2012
11. Good Friday : Friday, 6 April, 2012
12. Guru Rabindranath's Birthday : Tuesday, 8 May, 2012
13. Hazarat Ali's Birthday : Monday, 4 June, 2012
14. Rath Yatra : Thursday, 21 June, 2012
15. Raksha Bandhan : Thursday, 2 August, 2012
16. Janamashtami (Vaisnava) : Friday, 10 August, 2012
17. Independence Day : Wednesday, 15 August, 2012
18. Jamat-Ul-Vida : Friday, 17 August, 2012
19. Id-ul-Fitr : Monday, 20 August, 2012
20. Vinayaka Chaturthi : Tuesday, 21 August, 2012
21. Onam : Wednesday, 29 August, 2012
22. Ganesh Chaturthi : Wednesday, 19 September, 2012
23. Mahatma Gandhi's Birthday : Tuesday, 2 October, 2012
24. Maha Ashtami : Monday, 22 October, 2012
25. Dussehra (Vijaya Dashami) : Wednesday, 24 October, 2012
26. Naraka Chaturdasi : Thursday, 25 October, 2012
27. Maharishi Valmiki Jayanti : Monday, 29 October, 2012
28. Karaka Chaturthi (Karva Chouth) : Friday, 2 November, 2012
29. Naraka Chaturdasi : Monday, 12 November, 2012
30. Diwali (Deepavali) : Tuesday, 13 November, 2012
31. Bhai Duj : Thursday, 15 November, 2012
32. Pratihar Sashthi/Surya Sashthi (Chhat Puja) : Monday, 19 November, 2012
33. Guru Nanak Jayanti : Wednesday, 28 November, 2012
34. Christmas Eve : Monday, 24 December, 2012
35. Christmas : Tuesday, 25 December, 2012

And here are the 13 public holidays falling on a weekend:

1. New Year's Day : Sunday, 1 January, 2012
2. Makar Sankranti : Saturday, 14 January, 2012
3. Pongal : Sunday, 15 January, 2012
4. Shree Panchami : Saturday, 28 January, 2012
5. Milad-Un-Nabi or Id-E-Milad : Sunday, 5 February, 2012
6. Maharaja Shivaji Jayanti : Sunday, 19 February, 2012
7. Mesadi : Saturday, 14 April, 2012
8. Buddha Purnima : Sunday, 6 May, 2012
9. Parsi New Year : Saturday, 18 August, 2012
10. Maha Saptami : Sunday, 21 October, 2012
11. Id-ul-Zuha (Bakrid) : Saturday, 27 October, 2012
12. Guru Teg Bahadur's Martyrdom Day : Saturday, 24 November, 2012
13. Muharram : Sunday, 25 November, 2012