It's time to mark your calendars for Colorado’s largest single-day blood drive.

Bonfils has teamed up with the Denver Broncos to help host Drive for Life. In 2015, this event netted 1,140 blood donations.

It takes place on Tuesday, Nov. 1 from 8 a.m. to 5 p.m., and donors will have a chance to meet some Broncos players while there.

It takes one hour to donate, but Bonfils recommends you allow a few hours or make a day of it. Bonfils doesn't take appointments that day.

This is the 19th time the Denver Broncos have teamed up with Bonfils Blood Center to host the drive.

For more information on the event, click here