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Perl Monks: I have an issue I have been attempting to resolve, I have a set of timestamps in 2 groups, lets say the following:

Group 1:

2012-08-17 12:00:00
2012-08-17 13:00:00

Group 2:

2012-08-17 09:00:00
2012-08-17 12:30:00

What I need is to be able to compare the differences between the 2 time stamps in each group, and then find the intersect time and duration between the 2 groups. Expected output should be something like:

2012-08-17 12:00:00 for 30 minutes
Any assistance would be greatly appreciated

In reply to timestamp manipulation and evaluation by jonathancnewcomb

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