Question 1

How many days does April 1991 have?

Accepted Answer

April 1991 has 30 days. It starts on Monday and ends on Tuesday.

Question 2

What ISO week does April 1991 start in?

Accepted Answer

1 April 1991 falls in ISO week 14. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of South Korea in April 1991?

Accepted Answer

The calendar on this page marks every national public holiday of South Korea in April 1991 in red, with joint/regional days in amber.

4월 1991