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 1987?
Here is the detail of the calculation:
Because 1987 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 12 public holidays that do not fall during a weekend and we obtain 249 working days in 1987.
Here is the list of these 12 public holidays:
1. Confraternização Universal : Thursday, 1 January, 1987
2. Dia do evangélico : Friday, 23 January, 1987
3. Terça-feira de Carnaval : Tuesday, 3 March, 1987
4. Sexta Feira Santa ou Paixão de Cristo : Friday, 17 April, 1987
5. Tiradentes : Tuesday, 21 April, 1987
6. Dia do Trabalho : Friday, 1 May, 1987
7. Corpus Christi : Thursday, 18 June, 1987
8. Independência do Brasil : Monday, 7 September, 1987
9. Nossa Senhora Aparecida : Monday, 12 October, 1987
10. Finados : Monday, 2 November, 1987
11. Assinatura do Tratado de Petrópolis : Tuesday, 17 November, 1987
12. Natal : Friday, 25 December, 1987
And here are the 3 public holidays falling on a weekend:
1. Alusivo ao Dia Internacional da Mulher : Sunday, 8 March, 1987
2. Dia da Amazônia : Saturday, 5 September, 1987
3. Proclamação da República Brasileira : Sunday, 15 November, 1987