The Stamford Bridge fixture was scheduled for Saturday, April 6, but will now take place 24 hours later on Sunday, April 7, all parties have confirmed.
A statement on Sunderland's official website read: "The Black Cats will now travel to Stamford Bridge on Sunday, April 7 for a 3pm kick-off, moving back 24 hours from the original scheduled game.
"The change comes due to Chelsea's involvement in the quarter-final of the UEFA Europa League, where they face Russian side Rubin Kazan on Thursday, April 5."
The amendment was also reflected on the official websites of the Premier League and Chelsea.
Chelsea face six matches in 16 days following the international break, beginning against Southampton in the Premier League on March 30.
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