The schedule for the Bruins vs Lightning Eastern Conference Finals has been released:

Game 1 at Boston: Saturday May 14 8:00 p.m.
Game 2 at Boston: Tuesday May17 8:00 p.m.
Game 3 at Tampa: Thursday May 19 8:00 p.m.
Game 4 at Tampa: Saturday May 21 1:30 p.m
Game 5 at Boston(if nec): Monday May 23 8:00 p.m.
Game 6 at Tampa(if nec): Wednesday May 25 8:00 p.m.
Game 7 at Boston(if nec): Friday May 27 8:00 p.m.