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 1999?
Here is the detail of the calculation:
Because 1999 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 1999.
Here is the list of these 11 public holidays:
1. New Year's Day : Friday, January 1, 1999
2. Martin Luther King Day : Monday, January 18, 1999
3. Washington's Birthday : Monday, February 15, 1999
4. Memorial Day : Monday, May 31, 1999
5. Independence Day (observance) : Monday, July 5, 1999
6. Labor Day : Monday, September 6, 1999
7. Columbus Day : Monday, October 11, 1999
8. Veterans Day : Thursday, November 11, 1999
9. Thanksgiving : Thursday, November 25, 1999
10. Christmas (observance) : Friday, December 24, 1999
11. New Year's Day (observance) : Friday, December 31, 1999
And here are the 2 public holidays falling on a weekend:
1. Independence Day : Sunday, July 4, 1999
2. Christmas : Saturday, December 25, 1999
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