c:\@Work\Perl>perl -wMstrict -le
"my $adate = '2017-01-29 11:30:07.370';
 ;;
 my $A_new = $adate =~ s/(\d{4})-(\d{2})-(\d{2})\s(\d{2}):(\d{2})(.*)/$2-$3-$1 $4:$5/r;
 print qq{A: new '$A_new'  old '$adate'};
 ;;
 (my $B_new = $adate) =~ s/(\d{4})-(\d{2})-(\d{2})\s(\d{2}):(\d{2})(.*)/$2-$3-$1 $4:$5/;
 print qq{B: new '$B_new'  old '$adate'};
"
A: new '01-29-2017 11:30'  old '2017-01-29 11:30:07.370'
B: new '01-29-2017 11:30'  old '2017-01-29 11:30:07.370'