diff --git a/libs/ardour/ardour/playlist.h b/libs/ardour/ardour/playlist.h
index a54454a112..4e1e5cc536 100644
--- a/libs/ardour/ardour/playlist.h
+++ b/libs/ardour/ardour/playlist.h
@@ -88,7 +88,7 @@ private:
 	Playlist& _playlist;
 };
 
-class LIBARDOUR_API Playlist : public SessionObject, public std::enable_shared_from_this<Playlist>
+class LIBARDOUR_API Playlist : public SessionObject, public Temporal::TimeDomainProvider, public std::enable_shared_from_this<Playlist>
 {
 public:
 	static void make_property_quarks ();
@@ -113,8 +113,6 @@ public:
 	bool set_name (const std::string& str);
 	void set_region_ownership ();
 
-	Temporal::TimeDomain time_domain() const;
-
 	/*playlist group IDs (pgroup_id) is a group identifier that is implicitly
 	 * or explicitly assigned to playlists so they can be associated with each other.
 	 *
@@ -302,6 +300,7 @@ public:
 
 	void set_capture_insertion_in_progress (bool yn);
 
+	void time_domain_changed ();
 	void globally_change_time_domain (Temporal::TimeDomain from, Temporal::TimeDomain to);
 
 protected:
diff --git a/libs/ardour/playlist.cc b/libs/ardour/playlist.cc
index 938b8bd984..b251f1c5a5 100644
--- a/libs/ardour/playlist.cc
+++ b/libs/ardour/playlist.cc
@@ -143,6 +143,7 @@ RegionListProperty::get_content_from_xml (XMLNode const& node) const
 
 Playlist::Playlist (Session& sess, string nom, DataType type, bool hide)
 	: SessionObject (sess, nom)
+	, Temporal::TimeDomainProvider ((type == DataType::AUDIO ? Temporal::AudioTime : Temporal::BeatTime), sess)
 	, regions (*this)
 	, _type (type)
 {
@@ -154,6 +155,7 @@ Playlist::Playlist (Session& sess, string nom, DataType type, bool hide)
 
 Playlist::Playlist (Session& sess, const XMLNode& node, DataType type, bool hide)
 	: SessionObject (sess, "unnamed playlist")
+	, Temporal::TimeDomainProvider ((type == DataType::AUDIO ? Temporal::AudioTime : Temporal::BeatTime), sess)
 	, regions (*this)
 	, _type (type)
 {
@@ -171,6 +173,7 @@ Playlist::Playlist (Session& sess, const XMLNode& node, DataType type, bool hide
 
 Playlist::Playlist (std::shared_ptr<const Playlist> other, string namestr, bool hide)
 	: SessionObject (other->_session, namestr)
+	, Temporal::TimeDomainProvider ((other->_type == DataType::AUDIO ? Temporal::AudioTime : Temporal::BeatTime), other->_session)
 	, regions (*this)
 	, _type (other->_type)
 	, _orig_track_id (other->_orig_track_id)
@@ -204,6 +207,7 @@ Playlist::Playlist (std::shared_ptr<const Playlist> other, string namestr, bool
 
 Playlist::Playlist (std::shared_ptr<const Playlist> other, timepos_t const & start, timepos_t const & cnt, string str, bool hide)
 	: SessionObject(other->_session, str)
+	, Temporal::TimeDomainProvider ((other->_type == DataType::AUDIO ? Temporal::AudioTime : Temporal::BeatTime), other->_session)
 	, regions (*this)
 	, _type (other->_type)
 	, _orig_track_id (other->_orig_track_id)
@@ -3500,19 +3504,6 @@ Playlist::rdiff_and_add_command (Session* session)
 	session->add_command (new StatefulDiffCommand (shared_from_this ()));
 }
 
-Temporal::TimeDomain
-Playlist::time_domain() const
-{
-	switch (_type) {
-	case DataType::AUDIO:
-		return Temporal::AudioTime;
-	default:
-		break;
-	}
-
-	return Temporal::BeatTime;
-}
-
 void
 Playlist::globally_change_time_domain (Temporal::TimeDomain from, Temporal::TimeDomain to)
 {
@@ -3521,3 +3512,10 @@ Playlist::globally_change_time_domain (Temporal::TimeDomain from, Temporal::Time
 		region->globally_change_time_domain (from, to);
 	}
 }
+
+void
+Playlist::time_domain_changed ()
+{
+	TimeDomainProvider::time_domain_changed ();
+}
+