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 10 public holidays that do not fall during a weekend and we obtain 251 working days in 1999.
Here is the list of these 10 public holidays:
1. New Year's Day : friday, january 1, 1999
2. Martin Luther King Day : monday, january 18, 1999
3. Memorial Day : monday, may 31, 1999
4. Juneteenth (observance) : friday, june 18, 1999
5. Independence Day (observance) : monday, july 5, 1999
6. Labor Day : monday, september 6, 1999
7. Veterans Day : thursday, november 11, 1999
8. Thanksgiving : thursday, november 25, 1999
9. Christmas (observance) : friday, december 24, 1999
10. New Year's Day (observance) : friday, december 31, 1999
And here are the 3 public holidays falling on a weekend:
1. Juneteenth National Independence Day : saturday, june 19, 1999
2. Independence Day : sunday, july 4, 1999
3. Christmas : saturday, december 25, 1999