Table:
text: 1993 Senior PGA Tour
Tournament results
Tournament results
Date_ Tournament Location_ Purse_ Winner Score _1st_Prize_
Mar 28 Doug Sanders Celebrity Classic Texas 500000 Bob Charles (19) 208 (-8) 75000
Apr 4 The Tradition Arizona 850000 Tom Shaw (2) 269 (-19) 127500
Apr 18 PGA Seniors` Championship Florida 800000 Tom Wargo (1) 275 (-13) 110000
Apr 25 Muratec Reunion Pro-Am Texas 500000 Dave Stockton (2) 211 (-5) 75000
May 2 Las Vegas Senior Classic Nevada 700000 Gibby Gilbert (4) 204 (-12) 105000
May 16 PaineWebber Invitational North Carolina 550000 Mike Hill (15) 204 (-12) 82500
May 23 Bell Atlantic Classic Pennsylvania 650000 Bob Charles (20) 204 (-6) 97500
May 30 Cadillac NFL Golf Classic New Jersey 850000 Lee Trevino (16) 209 (-7) 127500

Question: What day was the Bell Atlantic Classic for 1993 Senior PGA Tour tournament results?