Question 1

How many days does April 1931 have?

Accepted Answer

April 1931 has 30 days. It starts on Wednesday and ends on Thursday.

Question 2

What ISO week does April 1931 start in?

Accepted Answer

1 April 1931 falls in ISO week 14. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of Japan in April 1931?

Accepted Answer

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

4月 1931