Question 1

How many days does April 1980 have?

Accepted Answer

April 1980 has 30 days. It starts on Tuesday and ends on Wednesday.

Question 2

What ISO week does April 1980 start in?

Accepted Answer

1 April 1980 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 1980?

Accepted Answer

The calendar on this page marks every national public holiday of South Korea in April 1980 in red, with joint/regional days in amber.

4월 1980