Question 1

How many days does May 1931 have?

Accepted Answer

May 1931 has 31 days. It starts on Friday and ends on Sunday.

Question 2

What ISO week does May 1931 start in?

Accepted Answer

1 May 1931 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 1931?

Accepted Answer

The calendar on this page marks every national public holiday of South Korea in May 1931 in red, with joint/regional days in amber.

5월 1931