I found this article on the Stanley Cup Finals schedule on the CBC Sports page, that shows 2 scenarios:
Stanley Cup final dates set
The top seed will host the first two games of the Stanley Cup final on back-to-back nights, according to two scheduling scenarios put forth by the NHL.
If the third round of the playoffs ends on or before May 26, the top seed will host the first two games of the final on May 29 and 30, and then hit the road for Game 3 and 4 on June 2 and 4.
Games 5, 6, and 7 — if necessary — will take place on June 6, 9 and 12.
All games will begin at 8 p.m. ET.
If the third round of the playoffs ends after May 26, the top seed will host the first two games of the final on June 5 and 6, before the series shifts to the other city for Games 3 and 4 on June 8 and 10.
Games 5, 6, and 7 would be played on June 12, 14 and 16.
Under this scenario, all games will begin at 8 p.m. ET, with the exception of Game 6, which would begin at 5 p.m. ET.
Bettman is ruin our beloved sport of hockey with all these crazy scheduling in the playoffs, wanting to put a hockey team back where it once failed before and a bunch of other bad decisions; Bettman reminds me of Roger Goodell of the NFL and how he's making all these crazy plans, with the Pro Bowl in between the conference finals and Super Bowl, having the Super Bowl over seas in a foreign country, etc., etc., etc.. I hope there is someone who can get his ear and tell him that this idea isn't a good one and just might hurt his chances of drawing new fans down the line.