Did I understand correct, that you are interested in just the difference?

Then, if your times are really at most 10 minutes apart, I don't think that you need to take care of the date or even the hour. Even if the daylight saving time occured between two timestamps. You just need to check the minutes and seconds. if the result is negative, just add 60 minutes and you should be okay.

Here a small example: 

my $a="20070101005959";
my $z="20070101010101";
my $t1=substr($a,-4,2)*60+substr($a,-2);
my $t2=substr($z,-4,2)*60+substr($z,-2);
print (($t2+3600-$t1)%3600);

[download]
s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
+.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e

In reply to Re: Timegm and timelocal by Skeeve
in thread Timegm and timelocal by Chon-Ji

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