diff --git a/lib/Subtitle/Format.pm b/lib/Subtitle/Format.pm
index 470a89a..66da324 100644
--- a/lib/Subtitle/Format.pm
+++ b/lib/Subtitle/Format.pm
@@ -35,6 +35,14 @@ sub events {
   return wantarray ? @{ $self->{events} } : $self->{events};
 }
 
+sub sort_events {
+  my ($self) = @_;
+  my @sorted = sort {
+    $a->t_start <=> $b->t_start
+  } @{ $self->events; };
+  $self->events(\@sorted);
+}
+
 sub from_string {
   my ($self, $text) = @_;
   my @lines = split /\r?\n/o, $text;
@@ -102,6 +110,12 @@ Collected messages can be accessed like this:
 
 Access to subtitle events
 
+=head2 C<sort_events>
+
+  $obj->sort_events;
+
+Internally sort events by start time (ascending)
+
 =head2 C<build>
 =head2 C<parse>
 
diff --git a/t/format.t b/t/format.t
index 7f82571..0d917b6 100644
--- a/t/format.t
+++ b/t/format.t
@@ -1,7 +1,7 @@
 use strict;
 use warnings;
 
-use Test::More tests => 5;
+use Test::More tests => 6;
 
 require_ok('Subtitle::Format');
 
@@ -21,6 +21,8 @@ require_ok('Subtitle::Format');
 
 my $obj = Subtitle::Dummy->new;
 isa_ok($obj, 'Subtitle::Dummy');
+can_ok($obj, qw(new parse build log events sort_events
+  from_file to_file from_string to_string));
 
 is(scalar @{ $obj->{log} }, 0);
 $obj->log(warn => "something");