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Re^2: How do I find difference between two timestamps?

by tomhukins (Curate)
on Nov 16, 2004 at 17:23 UTC ( #408176=note: print w/ replies, xml ) Need Help??


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

Since your date formats are nonstandard

Non-standard how? They conform to ISO 8601, which defines the international standard for expressing dates and times.


Comment on Re^2: How do I find difference between two timestamps?
Re^3: How do I find difference between two timestamps?
by tall_man (Parson) on Nov 16, 2004 at 18:22 UTC
    That may be so according to the most recent 8601 standard, but as far as Perl is concerned it is not. For example, Date::Manip claims to be able to handle ISO 8601 date formats, but the following will fail:
    use strict; use Date::Manip; my $string = "2004-11-15T18:59:52.863Z"; my $date = ParseDate($string); print $date,"\n";
      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.

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