How do you calculate elapsed between am and pm?

Answer 1

I do it in two parts. I calculate how much time has elapsed between the AM and noon, then how much time has elapsed between noon and the PM, then add them together.

Answer 2

To calculate the elapsed time between a.m. and p.m., you first need to determine the number of hours that have passed. For example, if it is 11:00 a.m. and you are trying to find the elapsed time until 3:00 p.m., there are 4 hours between those times. You can then convert those hours into minutes or other units of time if needed.