CONCORD, N.C. -- NASCAR announced changes to its schedule for Saturday's events at Charlotte Motor Speedway as well as Sunday's big race.

Sunday's Bank of America 500 will start at the new time of 1 p.m. due to "potential weather issues," NASCAR said on its website.

Click here for the updated schedule.

Saturday, both the Monster Energy NASCAR Cup Series practices -- originally scheduled for 11 a.m. and 1 p.m. -- and NASCAR XFINITY Series qualifying -- initially set to start at 12:05 p.m. -- were canceled due to weather.