Question 1

How many days does May 1990 have?

Accepted Answer

May 1990 has 31 days. It starts on Tuesday and ends on Thursday.

Question 2

What ISO week does May 1990 start in?

Accepted Answer

1 May 1990 falls in ISO week 18. Weeks run Monday–Sunday per ISO 8601.

Question 3

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

Accepted Answer

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

5월 1990