Question 1

How many days does May 1977 have?

Accepted Answer

May 1977 has 31 days. It starts on Sunday and ends on Tuesday.

Question 2

What ISO week does May 1977 start in?

Accepted Answer

1 May 1977 falls in ISO week 17. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of South Korea in May 1977?

Accepted Answer

The calendar on this page marks every national public holiday of South Korea in May 1977 in red, with joint/regional days in amber.

5월 1977