Question 1

How many days does October 1999 have?

Accepted Answer

October 1999 has 31 days. It starts on Friday and ends on Sunday.

Question 2

What ISO week does October 1999 start in?

Accepted Answer

1 October 1999 falls in ISO week 39. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of Poland in October 1999?

Accepted Answer

The calendar on this page marks every national public holiday of Poland in October 1999 in red, with joint/regional days in amber.

październik 1999