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in reply to Re^3: How do I find difference between two timestamps?
in thread How do I find difference between two timestamps?

Date::Manip claims to be able to handle ISO 8601 date formats, but the following will fail

It seems Date::Manip only understands a subset of valid ISO 8601 formats. Again, I suggest the DateTime collection of modules that have been mentioned elsewhere in this discussion.

The DateTime modules do a good job of dealing with dates, times, intervals, timezone differences, daylight savings time, and other things that make this type of programming more difficult than first appearances suggest.