Alright, lets get started.


We need to find elapsed time between 11:31 am and 8:22 pm.
From 11:31 am, it will first go to 12:00 pm then 8:22 pm.
So, time elapsed from 11:31 am to 12:00 pm :

time elapsed from 12:00 pm to 8:22 pm : 8:22
So total time elapsed :

So total time elapsed : 8 : 51 : Answer
Hope it will help :)