use DateTime; $Inputfile = $ARGV[0]; open(INFO, $Inputfile); @lines = ; close(INFO); my$dt = DateTime -> now; $dt -> set_hour(0); $dt -> set_minute(0); $dt -> set_second(0); print $lines[0]; print $lines[1]; for ($i = 2; $i<@lines; $i++) { $datum=$dt->dmy('.') . " " . $dt->hms(':'); @currentLine = split(/;/, $lines[$i]); print($datum . ";" . $currentLine[1]); $dt -> add(hours=>1); }