All I am saying is if you reported for your start time, start getting paid, it has started your 14 clock. The regulations do state the company can relieve you of duty, but any paid time whether for say a side job, or even waiting in readiness for the motor carrier, will count against your 14. Some believe they don’t have to count these relieved of duty hours on the 14, but just get in any kind of accident, your fault or not, the lawyers will find out your paid, on duty, and total hours in service that day, and if it puts you over the 14 from your start time, well, you probably know who will get dragged into court.
https://www.fmcsa.dot.gov/sites/fmcsa.dot.gov/files/docs/Drivers%20Guide%20to%20HOS%202015_508.pd
I think page 10 explains it pretty well.
Cover your ass out there, because the company will not.