The National Hockey League said in release that the Nashville Predators and Phoenix Coyotes will drop the puck on the second round of the playoffs on Friday in Arizona.
The St. Louis Blues and the Los Angeles Kings begin their series Saturday in Missouri.
The NHL announced the dates for the first four games of each series, but did not yet provide start times.
Nashville and Phoenix begin their best-of-seven series at Jobing.com Arena in Glendale, with Game 2 on Sunday.
The series will resume in Nashville for games on Wednesday May 2 and Friday May 4.
St. Louis and Los Angeles play Game 2 on Monday, before the series shifts to California for games on Thursday May 3 and Sunday May 6.
Phoenix and Nashville, which both came into existence in the late 1990s, are meeting for the first time.
Despite both entering the league in 1967, this is just the third playoff meeting between the Blues and Kings. St. Louis swept series in 1968-69 and 1997-98.
The NHL said it would make public the complete Eastern and Western Conference semifinal schedule after the completion Thursday night of the series between the New York Rangers and Ottawa and Florida-New Jersey.