Apr 20*	Thursday-2: Last (-2) Thursday
Apr 20*	Thu-2: Last (-2) Thursday
Apr 20*	Thursday+3: Third Thursday
Apr 20*	Thu+3: Third Thursday
Apr 20*	Thursday+3: Third Thursday in April
Apr 20*	Thu+3: Third Thursday in April
Apr 20*	Third: Third Thursday in April
Apr 20*	20 of every month
Apr 20 	4/20: April 20
Apr 20 	Apr. 20: April 20
Apr 20 	20 April: April 20
	April: continued
Apr 20*	Thursday: Every Thursday
Apr 21*	Friday-2: Last (-2) Friday
Apr 21*	Fri-2: Last (-2) Friday
Apr 21*	Friday+3: Third Friday
Apr 21*	Fri+3: Third Friday
Apr 21*	Friday+3: Third Friday in April
Apr 21*	Fri+3: Third Friday in April
Apr 21*	Third: Third Friday in April
Apr 21*	21 of every month
Apr 21 	4/21: April 21
Apr 21 	Apr. 21: April 21
Apr 21 	21 April: April 21
	April: continued
Apr 21*	Friday: Every Friday