Calendar December 1999 USA‹ November 1999January 2000 ›SuSundayMoMondayTuTuesdayWeWednesdayThThursdayFrFridaySaSaturday1Wednesday2Thursday3Friday4Saturday5Sunday6Monday7Tuesday8Wednesday9Thursday10Friday11Saturday12Sunday13Monday14Tuesday15Wednesday16Thursday17Friday18Saturday19Sunday20Monday21Tuesday22Wednesday23Thursday24FridayChristmas (observed)Christmas Eve25SaturdayChristmas26SundayBoxing Day27Monday28Tuesday29Wednesday30Thursday31FridayNew Year's Day (substitute day)New Year's EveChoose month:Success!Error!Legend