MTV will change the airtime for its Video Music Awards show in September to avoid a conflict with President Barack Obama, who will be delivering an acceptance speech for the Democratic presidential nomination the same night.

The MTV Video Music Awards will air between 8 and 10 p.m., Sept. 6, instead of its usual 9 to 11 p.m. slot, a source close to MTV told CNN. The source spoke to the network on conditions of anonymity.

(It's) to avoid conflict with the Democratic National Convention proceedings that evening, the source said.

MTV announced the venue and airtime on its website Tuesday. The awards show will be held at the Staples Center in Los Angeles, Calif. However, the announcement didn't say whether the change in airtime was a result of the Democratic National Convention.

Earlier this year, convention CEO Steve Kerrigan announced that Obama will close the 2012 Democratic National Convention in September with an acceptance speech at Bank of America stadium in Charlotte, N.C.