Question: is it illegal to drive more than 10 hours a day?
Answer: Under GB regulations, you must not drive for more than 10 hours a day. You can't be on duty for more than 11 hours a day, and your hours must be recorded on a time-sheet or tachograph. After 5 1/2 hours of driving, you must take a break of at least 30 minutes for rest and refreshment.