December 31 is the 365th day of the year (366th in leap years) in the Gregorian Calendar, as the final day of the Gregorian year.

Events:

Births: Deaths:
Holidays and observances:
See Also:

December 30 - January 1 - November 30 - January 31 -- listing of all days

January, February, March, April, May, June, July, August, September, October, November, December