$dateOut = "$oDay".'-'."$oMon".'-'."$oYear";
#print"Date out => $dateOut\n";							
						$Date_Time{$dateOut}{$dSec}{$dMin}{$dHour} = 1;

#Retrieving the hash array output
foreach my $date ( sort keys %Date_Time ) {
		#print"Date=> $date\n";
		foreach my $sec (sort keys %{$Date_Time{$date}}) {
			#print"Seconds=> $sec\n";
			foreach my $minute (sort keys %{$Date_Time{$date}{$sec}}) {
				#print"Minute=> $minute\n";
				foreach my $ hour (sort keys %{$Date_Time{$date}{$sec}{$minute}}) {			

					print"Date=>[$date] --> [$hour]:[$minute]:[$sec]\n";
					

				}
			}
		}
	}

My Output:
Date=>04-12-2008 --> 8:5:0
Date=>03-12-2008 --> 5:8:0
Date=>05-12-2008 --> 9:5:0

Expected output:

Date=>03-12-2008 --> 5:8:0
Date=>04-12-2008 --> 8:5:0
Date=>05-12-2008 --> 9:5:0