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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 9 public holidays that do not fall during a weekend and we obtain 251 working days in 2130.
 Here is the list of these 9 public holidays: 
 
 1. Saint-Berchtold : понеділок, 2 січень, 2130 
2. Vendredi Saint : п'ятниця, 24 березень, 2130 
3. Lundi de Pâques : понеділок, 27 березень, 2130 
4. Fête du Travail : понеділок, 1 травень, 2130 
5. Jeudi de l'Ascension : четвер, 4 травень, 2130 
6. Lundi de la Pentecôte : понеділок, 15 травень, 2130 
7. Fête nationale suisse : вівторок, 1 серпень, 2130 
8. Noël : понеділок, 25 грудень, 2130 
9. Saint Étienne : вівторок, 26 грудень, 2130 
And here is the public holiday falling on a weekend:
1. Jour de l'An : неділя, 1 січень, 2130