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How many working days in year 2130?
Here is the detail of the calculation:
Because 2130 is not a leap year, it has 365 days.
Let's remove 52 saturdays and 53 sundays. It remains 260 days.
Now, let's remove 12 public holidays that do not fall during a weekend and we obtain 248 working days in 2130.
 Here is the list of these 12 public holidays: 
 
 1. Berchtold's Day : Monday, 2 January, 2130 
2. Good Friday : Friday, 24 March, 2130 
3. Easter Monday : Monday, 27 March, 2130 
4. Ascension Day : Thursday, 4 May, 2130 
5. Whit Monday : Monday, 15 May, 2130 
6. Corpus Christi : Thursday, 25 May, 2130 
7. Swiss National Day : Tuesday, 1 August, 2130 
8. Assumption of Mary : Tuesday, 15 August, 2130 
9. All Saints' Day : Wednesday, 1 November, 2130 
10. Immaculate Conception : Friday, 8 December, 2130 
11. Christmas Day : Monday, 25 December, 2130 
12. Saint Stephen's Day : Tuesday, 26 December, 2130 
And here is the public holiday falling on a weekend:
1. New Year's Day : Sunday, 1 January, 2130