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