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”
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 8 public holidays that do not fall during a weekend and we obtain 254 working days in 1980.
Here is the list of these 8 public holidays:
1. New Year's Day : Tuesday, 1 January, 1980
2. Easter Monday : Monday, 7 April, 1980
3. Labour Day : Thursday, 1 May, 1980
4. Corpus Christi : Thursday, 5 June, 1980
5. Assumption of Mary : Friday, 15 August, 1980
6. Independence Day : Tuesday, 11 November, 1980
7. Christmas Day : Thursday, 25 December, 1980
8. Boxing Day : Friday, 26 December, 1980
And here are the 5 public holidays falling on a weekend:
1. Epiphany : Sunday, 6 January, 1980
2. Easter Sunday : Sunday, 6 April, 1980
3. Constitution Day : Saturday, 3 May, 1980
4. Pentecost Sunday : Sunday, 25 May, 1980
5. All Saints' Day : Saturday, 1 November, 1980
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