If you read your logfile lines and pass them through an appropriate regexp you should be able to extract the individual components; you can then pass them in a call to DateTime->new . From the DateTime man page:

             my $dt = DateTime->new( year   => 1066,
                                     month  => 10,
                                     day    => 25,
                                     hour   => 7,
                                     minute => 15,
                                     second => 47,
                                     nanosecond => 500000000,
                                     time_zone  => ’America/Chicago’,
                                   );
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I'm not sure if that will help you - depends on what you need to do. But DateTime is pretty flexible.