here is my preference: you can modify however you like, but I agree with keeping the century as well...

my($sec,$min,$hour,$mday,$mon,$year) = localtime;
my $current_time = sprintf("%02d%02d%02d%02d%02d%02d", $year-100,$mon+
+1,$mday,$hour,$min,$sec);
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it's output of the time is in this format "030804135240"