How many working days in year 2010?
Here is the detail of the calculation:
Because 2010 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 14 public holidays that do not fall during a weekend and we obtain 247 working days in 2010.
Here is the list of these 14 public holidays:
1. New Year's Day : Friday, 1 January, 2010
2. Coming of Age Day : Monday, 11 January, 2010
3. Foundation Day : Thursday, 11 February, 2010
4. Shōwa Day : Thursday, 29 April, 2010
5. Constitution Memorial Day : Monday, 3 May, 2010
6. Greenery Day : Tuesday, 4 May, 2010
7. Children's Day : Wednesday, 5 May, 2010
8. Marine Day : Monday, 19 July, 2010
9. Respect-for-Aged Day : Monday, 20 September, 2010
10. Autumnal Equinox Day : Thursday, 23 September, 2010
11. Health and Sports Day : Monday, 11 October, 2010
12. Culture Day : Wednesday, 3 November, 2010
13. Labor Thanksgiving Day : Tuesday, 23 November, 2010
14. Emperor's Birthday : Thursday, 23 December, 2010
And here is the public holiday falling on a weekend:
1. Vernal Equinox Day : Sunday, 21 March, 2010