What day of the week was December 1, 2009?

The day of the week December 1st, 2009 fell on was a Tuesday.

There were 24 days until Christmas.

Gustavo Adolfo Palma the Guatemalan tenor and actor (b. 1920) died on this day in 2009.

The Treaty of Lisbon the which amends the Treaty on European Union and the Treaty establishing the European Community, which together comprise the constitutional basis of European Union, comes into effect.