#! /usr/local/bin/perl

($second, $minute, $hour, $day_of_month,$month, $year, $weekday, $day_of_year, $daylight_standard_time) = localtime(time);
 SWITCH:{
    if ($hour > 18){
       if ($hour < 21){
          print "Good Evening World\n";
       }else {
          print "Good Night World\n";
       }
      last SWITCH ;
    }
    if ($hour > 12){
      print "Good Afternoon World\n";
      last SWITCH ;
    }
    if ($hour > 6) {
      print "Good Morning World\n";
      last SWITCH ;
    }
    DEFAULT:{
       print "Go to BED already! \n";
       last SWITCH ;
    }
}