Question 1

How many days does January 2010 have?

Accepted Answer

January 2010 has 31 days. It starts on Friday and ends on Sunday.

Question 2

What ISO week does January 2010 start in?

Accepted Answer

1 January 2010 falls in ISO week 52. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of Greenland in January 2010?

Accepted Answer

The calendar on this page marks every national public holiday of Greenland in January 2010 in red, with joint/regional days in amber.