First let's find the number of hours.
4:40am, 5:40am, 6:40am, 7:40am, 8:40am, 9:40am, 10:40am, 11:40am, 12:40pm, 1:40pm
That's 10 hours.
Now since there are 60 minutes in an hour, we can subtract to find the number of minutes.
60 - 40 = 20
The answer is 10 hours and 20 minutes. :)
Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)