Question: how many hours can you work in 24 hours legally?
Answer: You may not work for longer than 13 hours in any 24-hour period, including hours resulting from calls. You may not spend more than 14 days on on-call duty in any 4-week period. Every 4 weeks, there should be at least 2 consecutive days on which you do not work and on which you are not on on-call duty.