Assistant: Hello! I handle your requests in natural language, such as:
“Analyze the period from November 1, 2025, to April 25, 2028.”
or
“Add 100 business days to February 25, 2026.”
or
“Next Thursday at 2:12 PM + 124 working hours”
or
“I won't be working first week of next may (going to Greece)”
Assistant:
I understand all languages.
How many working days in year 1980?
Here is the detail of the calculation:
Because 1980 is a leap year, it has 366 days.
Let's remove 52 saturdays and 52 sundays. It remains 262 days.
Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 252 working days in 1980.
Here is the list of these 10 public holidays:
1. Jour de l'An : Tuesday, 1 January, 1980
2. Lundi de Pâques : Monday, 7 April, 1980
3. Fête du Travail : Thursday, 1 May, 1980
4. Fête de la Victoire 45 : Thursday, 8 May, 1980
5. Jeudi de l'Ascension : Thursday, 15 May, 1980
6. Lundi de la Pentecôte : Monday, 26 May, 1980
7. Fête Nationale : Monday, 14 July, 1980
8. Fête de l'Assomption : Friday, 15 August, 1980
9. Fête de l'Armistice 1918 : Tuesday, 11 November, 1980
10. Noël : Thursday, 25 December, 1980
And here is the public holiday falling on a weekend:
1. Fête de la Toussaint : Saturday, 1 November, 1980
Save 
Delete 
Copy 
