This was after Liverpool were drawn to face Manchester City in the UEFA Champions League quarter-finals.
The second leg of their tie takes place on Tuesday, 10 April, forcing the rescheduling.
Kick-off will be 12:30 BST and the match will still be shown on Sky Sports in the UK.
This also remains live on Sky Sports.
Saturday, 7 April
12:30 BST Everton v Liverpool (Sky Sports)
Sunday, 8 April
14:15 BST Arsenal v Southampton (Sky Sports)