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

Both 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.

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.