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 1991?
Here is the detail of the calculation:
Because 1991 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 11 public holidays that do not fall during a weekend and we obtain 250 working days in 1991.
Here is the list of these 11 public holidays:
1. New Year's Day : Tuesday, January 1, 1991
2. Martin Luther King Day : Monday, January 21, 1991
3. Memorial Day : Monday, May 27, 1991
4. Juneteenth National Independence Day : Wednesday, June 19, 1991
5. Independence Day : Thursday, July 4, 1991
6. Labor Day : Monday, September 2, 1991
7. Columbus Day : Monday, October 14, 1991
8. Veterans Day : Monday, November 11, 1991
9. Thanksgiving : Thursday, November 28, 1991
10. Black Friday : Friday, November 29, 1991
11. Christmas : Wednesday, December 25, 1991
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