title: Finding the difference in time between two NSDates Swift
body: <p>I have two NSDate objects: startDate and endDate, both are NSDate objects. I want to find the difference between these two dates. I know there is a resolved question about this already (<a href="https://stackoverflow.com/questions/27182023/getting-the-difference-between-two-nsdates-in-months-days-hours-minutes-seconds">Getting the difference between two NSDates in (months/days/hours/minutes/seconds)</a>), but I want to know if there is a quicker way to do this (less execution code). Is that possible?</p>