I think you should have a look at the Date::Range module. After reading its POD, it looks like, in particular, the gap() method is almost exactly what you're looking for. You may have to massage your input data into a format understood by Date::Range, but that shouldn't be too hard.

I hope this helps...Good luck!

Update: Ugg! It looks like I jumped the gun; this would be an excellent solution for ranges of dates, but doesn't appear to deal with time-resolution. Sorry! ;)


Dave

In reply to Re: Determining gaps in time ranges by davido
in thread Determining gaps in time ranges by Sprenger000

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