Start time is 11:18 A.M and the Elapsed time is 3 hours and 10 minutes. What is the ending time?

1 hour after 11 is noon

so 3 hours is 2 pm
2 pm + 18 min + 10 min = 2 pm + 28 min
that is 2:28
or use military time
11:18 + 3:10 = 14:28 which is 2:28 pm civilian time