diff --git a/lib/Subtitle/Format/SRT.pm b/lib/Subtitle/Format/SRT.pm
index c9b5ad8..5344d92 100644
--- a/lib/Subtitle/Format/SRT.pm
+++ b/lib/Subtitle/Format/SRT.pm
@@ -4,6 +4,7 @@ use strict;
 use warnings;
 use utf8;
 
+use Subtitle::Event;
 use Subtitle::Utils qw(:string :timing);
 
 use base 'Subtitle::Format';
@@ -11,9 +12,8 @@ use base 'Subtitle::Format';
 sub new {
   my ($class, %args) = @_;
   my $self = {
-    debug  => 0,
-    eol    => "\n",
-    %args,
+    debug  => $args{debug} || 0,
+    eol    => $args{eol} || "\n",
     events => [],
     log    => [],
     timing_fmt => "%02d:%02d:%02d,%03d",
@@ -22,7 +22,7 @@ sub new {
   return bless($self, $class);
 }
 
-sub new_event { return +{ id => undef, timing => undef, text => undef }; }
+sub new_event { return Subtitle::Event->new; }
 
 sub parse {
   my ($self, $lines) = @_;
@@ -41,25 +41,26 @@ sub parse {
       next;
     }
     # expected: timing
-    if ($line and $event and not $event->{timing}) {
+    if ($line and $event and not ($event->t_start or $event->t_end)) {
       $self->log(debug => "Expecting timing line at $linenum");
-      my $timing = [];
+      my @t;
       my ($start, $end, $rest) = ($line =~ m/(\S+)\s*-->\s*(\S+)(.*)/o);
       unless ($start and $end) {
         $self->log(warn => "Expected timing but found `$line` at $linenum, skipped");
         next;
       }
-      $timing->[0] = parse_timing($start);
-      unless ($timing->[0] >= 0) {
+      $t[0] = parse_timing($start);
+      unless ($t[0] >= 0) {
         $self->log(warn => "Can't parse timing at line $linenum: $start");
         next;
       }
-      $timing->[1] = parse_timing($end);
-      unless ($timing->[1] >= 0) {
+      $t[1] = parse_timing($end);
+      unless ($t[1] >= 0) {
         $self->log(warn => "Can't parse timing at line $linenum: $end");
         next;
       }
-      $event->{timing} = $timing;
+      $event->t_start($t[0]);
+      $event->t_end  ($t[1]);
       trim($rest);
       next unless $rest;
       # extension: timing
@@ -102,17 +103,18 @@ sub parse {
       next;
     }
     # expected: event text
-    if ($line and $event and $event->{timing}) {
+    if ($line and $event and ($event->t_start or $event->t_end)) {
       trim($line);
       $self->log(debug => "Text line at $linenum -> append");
-      $event->{text} //= '';
-      $event->{text} .= $self->{eol} if $event->{text};
-      $event->{text} .= $line;
+      my $text = $event->text;
+      $text .= $self->{eol} if $text;
+      $text .= $line;
+      $event->text($text);
       next;
     }
   } # foreach @lines
   # finalize last event
-  if ($event and $event->{timing} and $event->{text}) {
+  if ($event and $event->text and ($event->t_start or $event->t_end)) {
     push @{ $self->{events} }, $event;
   }
 
@@ -125,12 +127,10 @@ sub build {
 
   foreach my $e (@{ $self->{events} }) {
     push @lines, $e->{id};
-    my $start = sprintf $self->{timing_fmt},
-      make_timing($e->{timing}->[0]);
-    my $end   = sprintf $self->{timing_fmt},
-      make_timing($e->{timing}->[1]);
-    push @lines, sprintf("%s --> %s", $start, $end);
-    push @lines, $e->{text};
+    my $start  = sprintf $self->{timing_fmt}, make_timing($e->t_start);
+    my $end    = sprintf $self->{timing_fmt}, make_timing($e->t_end);
+    push @lines, sprintf "%s --> %s", $start, $end;
+    push @lines, $e->text;
     push @lines, "";
   }
 
diff --git a/lib/Subtitle/Format/SSA/Event.pm b/lib/Subtitle/Format/SSA/Event.pm
index 3cc2e67..316f62d 100644
--- a/lib/Subtitle/Format/SSA/Event.pm
+++ b/lib/Subtitle/Format/SSA/Event.pm
@@ -4,7 +4,7 @@ use strict;
 use warnings;
 use utf8;
 
-use base 'Subtitle::Format::SSA::Record';
+use base qw(Subtitle::Event Subtitle::Format::SSA::Record);
 
 my @FIELDS_SSA = qw(marked start end style name marginl marginr marginv effect text);
 my @FIELDS_ASS = qw(layer  start end style name marginl marginr marginv effect text);
diff --git a/t/format-srt.t b/t/format-srt.t
index 073d7ff..c2f9e45 100644
--- a/t/format-srt.t
+++ b/t/format-srt.t
@@ -7,7 +7,7 @@ use Subtitle::Format::SRT;
 
 my $srt = Subtitle::Format::SRT->new(debug => 1);
 is(ref $srt, 'Subtitle::Format::SRT');
-can_ok($srt, qw(new parse));
+can_ok($srt, qw(new parse build));
 
 my $sample = <<"EOF";
 1
@@ -25,11 +25,11 @@ my $cnt = $srt->from_string($sample);
 is($cnt, 2);
 
 my @events = @{ $srt->{events} };
-is($events[0]->{timing}->[0], 0.1);
-is($events[0]->{timing}->[1], 8.0);
-is($events[0]->{text}, "<i>kirari hikaru yume o taisetsu ni dakishimete\n</i>");
-is($events[1]->{timing}->[0], 8.1);
-is($events[1]->{timing}->[1], 12.0);
-is($events[1]->{text}, "<i>ippo dzutsu aruite yukou\n</i>");
+is($events[0]->t_start, 0.1);
+is($events[0]->t_end,   8.0);
+is($events[0]->text, "<i>kirari hikaru yume o taisetsu ni dakishimete\n</i>");
+is($events[1]->t_start, 8.1);
+is($events[1]->t_end,  12.0);
+is($events[1]->text, "<i>ippo dzutsu aruite yukou\n</i>");
 
 exit 0;