Question 1

How many days does April 1981 have?

Accepted Answer

April 1981 has 30 days. It starts on Wednesday and ends on Thursday.

Question 2

What ISO week does April 1981 start in?

Accepted Answer

1 April 1981 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 1981?

Accepted Answer

The calendar on this page marks every national public holiday of South Korea in April 1981 in red, with joint/regional days in amber.

4월 1981