Question 1

How many days does January 1975 have?

Accepted Answer

January 1975 has 31 days. It starts on Wednesday and ends on Friday.

Question 2

What ISO week does January 1975 start in?

Accepted Answer

1 January 1975 falls in ISO week 1. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of South Korea in January 1975?

Accepted Answer

The calendar on this page marks every national public holiday of South Korea in January 1975 in red, with joint/regional days in amber.

1월 1975