diff --git a/python/core/auto_generated/qgsmaplayertemporalproperties.sip.in b/python/core/auto_generated/qgsmaplayertemporalproperties.sip.in
index 077abcc232ce..edaaf8d5a8bf 100644
--- a/python/core/auto_generated/qgsmaplayertemporalproperties.sip.in
+++ b/python/core/auto_generated/qgsmaplayertemporalproperties.sip.in
@@ -27,7 +27,7 @@ how an individual QgsMapLayer behaves in a temporal context, e.g. while animatin
 %End
   public:
 
-    QgsMapLayerTemporalProperties( bool enabled = false );
+    QgsMapLayerTemporalProperties( QObject *parent, bool enabled = false );
 %Docstring
 Constructor for QgsMapLayerTemporalProperties.
 
diff --git a/python/core/auto_generated/qgstemporalproperty.sip.in b/python/core/auto_generated/qgstemporalproperty.sip.in
index b3666aa89b71..350809a08495 100644
--- a/python/core/auto_generated/qgstemporalproperty.sip.in
+++ b/python/core/auto_generated/qgstemporalproperty.sip.in
@@ -25,7 +25,7 @@ Base class for temporal property.
 %End
   public:
 
-    QgsTemporalProperty( bool enabled = false );
+    QgsTemporalProperty( QObject *parent = 0, bool enabled = false );
 %Docstring
 Constructor for QgsTemporalProperty.
 
diff --git a/python/core/auto_generated/raster/qgsrasterlayertemporalproperties.sip.in b/python/core/auto_generated/raster/qgsrasterlayertemporalproperties.sip.in
index f86a3b4d3566..67d34866901e 100644
--- a/python/core/auto_generated/raster/qgsrasterlayertemporalproperties.sip.in
+++ b/python/core/auto_generated/raster/qgsrasterlayertemporalproperties.sip.in
@@ -23,7 +23,7 @@ Implementation of map layer temporal properties for raster layers.
 %End
   public:
 
-    QgsRasterLayerTemporalProperties( bool enabled = false );
+    QgsRasterLayerTemporalProperties( QObject *parent = 0, bool enabled = false );
 %Docstring
 Constructor for QgsRasterLayerTemporalProperties.
 
diff --git a/src/app/qgslayertreeviewtemporalindicator.cpp b/src/app/qgslayertreeviewtemporalindicator.cpp
index c3d221968ede..bd46b13ade64 100644
--- a/src/app/qgslayertreeviewtemporalindicator.cpp
+++ b/src/app/qgslayertreeviewtemporalindicator.cpp
@@ -32,9 +32,8 @@ void QgsLayerTreeViewTemporalIndicatorProvider::connectSignals( QgsMapLayer *lay
 {
   if ( !( qobject_cast<QgsVectorLayer *>( layer ) || qobject_cast<QgsRasterLayer *>( layer ) ) )
     return;
-  QgsMapLayer *mapLayer = layer;
-  connect( mapLayer->temporalProperties(), &QgsMapLayerTemporalProperties::changed, this, [ this, mapLayer ]( ) { this->onLayerChanged( mapLayer ); } );
 
+  connect( layer->temporalProperties(), &QgsMapLayerTemporalProperties::changed, this, [ this, layer ]( ) { this->onLayerChanged( layer ); } );
 }
 
 void QgsLayerTreeViewTemporalIndicatorProvider::onIndicatorClicked( const QModelIndex &index )
diff --git a/src/core/qgsmaplayertemporalproperties.cpp b/src/core/qgsmaplayertemporalproperties.cpp
index 3849bc0c47d0..fa4b1e5bdc69 100644
--- a/src/core/qgsmaplayertemporalproperties.cpp
+++ b/src/core/qgsmaplayertemporalproperties.cpp
@@ -17,8 +17,8 @@
 
 #include "qgsmaplayertemporalproperties.h"
 
-QgsMapLayerTemporalProperties::QgsMapLayerTemporalProperties( bool enabled )
-  : QgsTemporalProperty( enabled )
+QgsMapLayerTemporalProperties::QgsMapLayerTemporalProperties( QObject *parent, bool enabled )
+  : QgsTemporalProperty( parent, enabled )
 {
 }
 
@@ -28,8 +28,11 @@ QgsMapLayerTemporalProperties::~QgsMapLayerTemporalProperties()
 
 void QgsMapLayerTemporalProperties::setTemporalSource( QgsMapLayerTemporalProperties::TemporalSource source )
 {
-  mSource = source;
-  emit changed();
+  if ( mSource != source )
+  {
+    mSource = source;
+    emit changed();
+  }
 }
 
 QgsMapLayerTemporalProperties::TemporalSource QgsMapLayerTemporalProperties::temporalSource() const
diff --git a/src/core/qgsmaplayertemporalproperties.h b/src/core/qgsmaplayertemporalproperties.h
index c3081437158c..6ca92810516d 100644
--- a/src/core/qgsmaplayertemporalproperties.h
+++ b/src/core/qgsmaplayertemporalproperties.h
@@ -38,6 +38,7 @@
  */
 class CORE_EXPORT QgsMapLayerTemporalProperties : public QgsTemporalProperty
 {
+    Q_OBJECT
 
   public:
 
@@ -46,7 +47,7 @@ class CORE_EXPORT QgsMapLayerTemporalProperties : public QgsTemporalProperty
      *
      * The \a enabled argument specifies whether the temporal properties are initially enabled or not (see isActive()).
      */
-    QgsMapLayerTemporalProperties( bool enabled = false );
+    QgsMapLayerTemporalProperties( QObject *parent, bool enabled = false );
 
     ~QgsMapLayerTemporalProperties() override;
 
diff --git a/src/core/qgstemporalproperty.cpp b/src/core/qgstemporalproperty.cpp
index 8de2f6881527..25416e0dcbd3 100644
--- a/src/core/qgstemporalproperty.cpp
+++ b/src/core/qgstemporalproperty.cpp
@@ -18,8 +18,9 @@
 
 #include "qgstemporalproperty.h"
 
-QgsTemporalProperty::QgsTemporalProperty( bool enabled )
-  : mActive( enabled )
+QgsTemporalProperty::QgsTemporalProperty( QObject *parent, bool enabled )
+  : QObject( parent )
+  , mActive( enabled )
 {
 }
 
diff --git a/src/core/qgstemporalproperty.h b/src/core/qgstemporalproperty.h
index b75efed19d6d..7374b4e4a1a2 100644
--- a/src/core/qgstemporalproperty.h
+++ b/src/core/qgstemporalproperty.h
@@ -43,7 +43,7 @@ class CORE_EXPORT QgsTemporalProperty : public QObject
      *
      * The \a active argument specifies whether the property is initially active (see isActive()).
      */
-    QgsTemporalProperty( bool enabled = false );
+    QgsTemporalProperty( QObject *parent = nullptr, bool enabled = false );
 
     /**
      * Sets whether the temporal property is \a active.
diff --git a/src/core/raster/qgsrasterlayer.cpp b/src/core/raster/qgsrasterlayer.cpp
index 52264a9376c1..d28a351aa643 100644
--- a/src/core/raster/qgsrasterlayer.cpp
+++ b/src/core/raster/qgsrasterlayer.cpp
@@ -577,7 +577,7 @@ void QgsRasterLayer::init()
   mLastViewPort.mWidth = 0;
   mLastViewPort.mHeight = 0;
 
-  mTemporalProperties = qgis::make_unique<QgsRasterLayerTemporalProperties>();
+  mTemporalProperties = new QgsRasterLayerTemporalProperties( this );
 }
 
 void QgsRasterLayer::setDataProvider( QString const &provider, const QgsDataProvider::ProviderOptions &options )
@@ -955,7 +955,7 @@ bool QgsRasterLayer::ignoreExtents() const
 
 QgsRasterLayerTemporalProperties *QgsRasterLayer::temporalProperties()
 {
-  return mTemporalProperties.get();
+  return mTemporalProperties;
 }
 
 void QgsRasterLayer::setContrastEnhancement( QgsContrastEnhancement::ContrastEnhancementAlgorithm algorithm, QgsRasterMinMaxOrigin::Limits limits, const QgsRectangle &extent, int sampleSize, bool generateLookupTableFlag )
diff --git a/src/core/raster/qgsrasterlayer.h b/src/core/raster/qgsrasterlayer.h
index f1e71c3a2c65..c1eb65c5299c 100644
--- a/src/core/raster/qgsrasterlayer.h
+++ b/src/core/raster/qgsrasterlayer.h
@@ -520,7 +520,7 @@ class CORE_EXPORT QgsRasterLayer : public QgsMapLayer
     QgsRasterDataProvider *mDataProvider = nullptr;
 
     //! Pointer to temporal properties
-    std::unique_ptr< QgsRasterLayerTemporalProperties > mTemporalProperties;
+    QgsRasterLayerTemporalProperties *mTemporalProperties = nullptr;
 
     //! [ data provider interface ] Timestamp, the last modified time of the data source when the layer was created
     QDateTime mLastModified;
diff --git a/src/core/raster/qgsrasterlayertemporalproperties.cpp b/src/core/raster/qgsrasterlayertemporalproperties.cpp
index 5fc7a414a3d8..6bc939729f16 100644
--- a/src/core/raster/qgsrasterlayertemporalproperties.cpp
+++ b/src/core/raster/qgsrasterlayertemporalproperties.cpp
@@ -17,8 +17,8 @@
 
 #include "qgsrasterlayertemporalproperties.h"
 
-QgsRasterLayerTemporalProperties::QgsRasterLayerTemporalProperties( bool enabled )
-  :  QgsMapLayerTemporalProperties( enabled )
+QgsRasterLayerTemporalProperties::QgsRasterLayerTemporalProperties( QObject *parent, bool enabled )
+  :  QgsMapLayerTemporalProperties( parent, enabled )
 {
 }
 
diff --git a/src/core/raster/qgsrasterlayertemporalproperties.h b/src/core/raster/qgsrasterlayertemporalproperties.h
index 6078156a9b9b..5d12aedc63ff 100644
--- a/src/core/raster/qgsrasterlayertemporalproperties.h
+++ b/src/core/raster/qgsrasterlayertemporalproperties.h
@@ -33,6 +33,8 @@
  */
 class CORE_EXPORT QgsRasterLayerTemporalProperties : public QgsMapLayerTemporalProperties
 {
+    Q_OBJECT
+
   public:
 
     /**
@@ -40,7 +42,7 @@ class CORE_EXPORT QgsRasterLayerTemporalProperties : public QgsMapLayerTemporalP
      *
      * The \a enabled argument specifies whether the temporal properties are initially enabled or not (see isActive()).
      */
-    QgsRasterLayerTemporalProperties( bool enabled = false );
+    QgsRasterLayerTemporalProperties( QObject *parent = nullptr, bool enabled = false );
 
     virtual ~QgsRasterLayerTemporalProperties() = default;
 
diff --git a/tests/src/core/testqgsrasterlayertemporalproperties.cpp b/tests/src/core/testqgsrasterlayertemporalproperties.cpp
index 415ba22452dc..b420128f5698 100644
--- a/tests/src/core/testqgsrasterlayertemporalproperties.cpp
+++ b/tests/src/core/testqgsrasterlayertemporalproperties.cpp
@@ -39,6 +39,7 @@ class TestQgsRasterLayerTemporalProperties : public QObject
     void cleanup(); // will be called after every testfunction.
 
     void checkSettingTemporalRange();
+    void testChangedSignal();
 
   private:
     QgsRasterLayerTemporalProperties *temporalProperties = nullptr;
@@ -82,5 +83,19 @@ void TestQgsRasterLayerTemporalProperties::checkSettingTemporalRange()
   QCOMPARE( temporalProperties->fixedTemporalRange(), dateTimeRange );
 }
 
+void TestQgsRasterLayerTemporalProperties::testChangedSignal()
+{
+  QCOMPARE( temporalProperties->temporalSource(), QgsMapLayerTemporalProperties::TemporalSource::Layer );
+  QSignalSpy spy( temporalProperties, SIGNAL( changed() ) );
+
+  temporalProperties->setTemporalSource( QgsMapLayerTemporalProperties::TemporalSource::Layer );
+  QCOMPARE( spy.count(), 0 );
+  temporalProperties->setTemporalSource( QgsMapLayerTemporalProperties::TemporalSource::Project );
+  QCOMPARE( spy.count(), 1 );
+
+  temporalProperties->setIsActive( true );
+  QCOMPARE( spy.count(), 2 );
+}
+
 QGSTEST_MAIN( TestQgsRasterLayerTemporalProperties )
 #include "testqgsrasterlayertemporalproperties.moc"