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 1989?
Here is the detail of the calculation:
Because 1989 is not a leap year, it has 365 days.
Let's remove 52 saturdays and 53 sundays. It remains 260 days.
Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 249 working days in 1989.
Here is the list of these 11 public holidays:
1. Terça-feira de Carnaval : tuesday, 7 february, 1989
2. Sexta Feira Santa ou Paixão de Cristo : friday, 24 march, 1989
3. Tiradentes : friday, 21 april, 1989
4. Dia do Trabalho : monday, 1 may, 1989
5. Corpus Christi : thursday, 25 may, 1989
6. Dia de Santa Catarina : friday, 11 august, 1989
7. Independência do Brasil : thursday, 7 september, 1989
8. Nossa Senhora Aparecida : thursday, 12 october, 1989
9. Finados : thursday, 2 november, 1989
10. Proclamação da República Brasileira : wednesday, 15 november, 1989
11. Natal : monday, 25 december, 1989
And here are the 2 public holidays falling on a weekend:
1. Confraternização Universal : sunday, 1 january, 1989
2. Dia de Santa Catarina de Alexandria : saturday, 25 november, 1989
Save 
Delete 
Copy 
