01-08-2010
I had a function to do this but I've been unable to find it. Basically it went like this:
1. Convert each time into minutes (ex: 01:30 => 90)
2. Compare the start and end dates.
2a. If they are the same, then subtract the start minute from end minute.
2a. If not, then calculate the remaining minutes of the start time and call another
function that will find out how many days have passed inbetween. Keep track and
multiply that number by the number of minutes in a day (60*24). Then add in
the minutes from the end time to get the total number of minutes that elapsed.
3. Finally convert the total number of minutes back to HH:MM form.
Sorry I don't have the code for this but hopefully this helps with your logic.
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