Driving limit:
Every driver has a set number of hours that he/she can drive each day.
In Canada: Driver cannot drive more than 13 hours in a day
In USA: Driver cannot drive more than 11 hours in a day
Learn more
http://www.mto.gov.on.ca/english/trucks/handbook/section1-7-4.shtml
https://www.fmcsa.dot.gov/regulations/hours-service/summary-hours-service-regulations