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How many working days in year 1993?
Here is the detail of the calculation:
Because 1993 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 8 public holidays that do not fall during a weekend and we obtain 253 working days in 1993.
 Here is the list of these 8 public holidays: 
 
 1. Jour de l'An : п'ятниця, 1 січень, 1993 
2. Vendredi Saint : п'ятниця, 9 квітень, 1993 
3. Lundi de Pâques : понеділок, 12 квітень, 1993 
4. Jeudi de l'Ascension : четвер, 20 травень, 1993 
5. Lundi de la Pentecôte : понеділок, 31 травень, 1993 
6. Fête Nationale : середа, 23 червень, 1993 
7. Toussaint : понеділок, 1 листопад, 1993 
8. Veille de Noël : п'ятниця, 24 грудень, 1993 
And here are the 4 public holidays falling on a weekend:
1. Fête du Travail : субота, 1 травень, 1993 
2. Assomption : неділя, 15 серпень, 1993 
3. Noël : субота, 25 грудень, 1993 
4. Saint-Étienne : неділя, 26 грудень, 1993