Spokesman Ken Sunshine, in a statement Friday, offered no reason for the delay.
Jackson's family had planned a private daytime service for Aug. 29. The pop superstar will now be interred in The Great Mausoleum at Forest Lawn-Glendale at a private evening ceremony.
The cemetery is spread over several hills on land roughly 8 miles north of downtown Los Angeles. The mausoleum includes a stained-glass replica of Leonardo da Vinci's "The Last Supper" and replicas of Michelangelo's statues.