1. Clock A is 11:40 clock B is 1:13. Time elapsed is 1 hour and 33 minutes.
2. Clock A is 10:50 clock B is 9:25. Time elapsed is 10 hours and 35 minutes.
3. Clock A is 3:40 clock B is 9:25. Time elapsed is 5 hours and 45 minutes.
4. Clock A is 5:10 clock B is 10:11. Time elapsed is 5 hours and 1 minute.
