Daytona 500 start time moved up one hour Sunday

Sunday's Daytona 500 will start one hour earlier at 1:30 p.m. ET due to the threat of rain in Daytona Beach, Fla.

NASCAR announced the time change for the "Great American Race" on Friday.

Chase Briscoe will start from the pole and William Byron is the defending champion.

Parking lots open at 6 a.m. on Sunday. Speedway officials encouraged fans to arrive early due to increased security measures.