Question 1

How many days does December 2009 have?

Accepted Answer

December 2009 has 31 days. It starts on Tuesday and ends on Thursday.

Question 2

What ISO week does December 2009 start in?

Accepted Answer

1 December 2009 falls in ISO week 49. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of South Korea in December 2009?

Accepted Answer

The calendar on this page marks every national public holiday of South Korea in December 2009 in red, with joint/regional days in amber.

12월 2009