1Dec 17* Sunday+3: Third Sunday 2Dec 17* Sun+3: Third Sunday 3Dec 17* Sunday-3: Last (-3) Sunday 4Dec 17* Sun-3: Last (-3) Sunday 5Dec 17* Sunday+3: Third Sunday in December 6Dec 17* Sun+3: Third Sunday in December 7Dec 17* Third: Third Sunday in December 8Dec 17* 17 of every month 9Dec 17 12/17: December 17 10Dec 17 Dec. 17: December 17 11Dec 17 17 December: December 17 12 December: continued 13Dec 17* Sunday: Every Sunday 14Dec 18* Monday-2: Last (-2) Monday 15Dec 18* Mon-2: Last (-2) Monday 16Dec 18* Monday+3: Third Monday 17Dec 18* Mon+3: Third Monday 18Dec 18* Monday+3: Third Monday in December 19Dec 18* Mon+3: Third Monday in December 20Dec 18* Third: Third Monday in December 21Dec 18* 18 of every month 22Dec 18 12/18: December 18 23Dec 18 Dec. 18: December 18 24Dec 18 18 December: December 18 25 December: continued 26Dec 18* Monday: Every Monday 27