Question 1

How many days does December 1990 have?

Accepted Answer

December 1990 has 31 days. It starts on Saturday and ends on Monday.

Question 2

What ISO week does December 1990 start in?

Accepted Answer

1 December 1990 falls in ISO week 48. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of South Korea in December 1990?

Accepted Answer

The calendar on this page marks every national public holiday of South Korea in December 1990 in red, with joint/regional days in amber.

12월 1990