Thanks guys, maybe i wasn't clear. I want to get the unix timing (since epoch) from the data and was wondering if there is an inverse function to strftime(). I just realized that its not that hard and so here is my solution, following lhoward's suggestion:

use Time::Local;

my %months = ( Jan=> 0, Feb=> 1, Mar=> 2, Apr=> 3, May=>4, Jun=> 5,
           Jul=> 6, Aug=> 7, Sep=> 8, Sep=> 8, Oct=> 9, Nov=> 10, Dec=
+> 11);
# Parse the date:    Fri Jun 30 11:07:39 2000
my ($day, $month, $mday, $time, $year)=split(" ", $d);
my ($hour,$min,$sec)=split(":",$time);

my $result = timelocal($sec,$min,$hour,$mday,$months{$month},$year);
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I'd prefer not having to use any module but this seems reasonable
The reason i need this is to go through some log files and print a summary of the events that happened in the past 24 hours.