diff --git a/src/gui/mesh/qgsmeshlayerproperties.cpp b/src/gui/mesh/qgsmeshlayerproperties.cpp
index d002dfe4bcb1..e6aa04bb1f27 100644
--- a/src/gui/mesh/qgsmeshlayerproperties.cpp
+++ b/src/gui/mesh/qgsmeshlayerproperties.cpp
@@ -107,6 +107,10 @@ QgsMeshLayerProperties::QgsMeshLayerProperties( QgsMapLayer *lyr, QgsMapCanvas *
   metadataFrame->setLayout( layout );
   mOptsPage_Metadata->setContentsMargins( 0, 0, 0, 0 );
 
+  mTemporalDateTimeStart->setDisplayFormat( "yyyy-MM-dd HH:mm:ss" );
+  mTemporalDateTimeEnd->setDisplayFormat( "yyyy-MM-dd HH:mm:ss" );
+  mTemporalDateTimeReference->setDisplayFormat( "yyyy-MM-dd HH:mm:ss" );
+
   // update based on lyr's current state
   syncToLayer();
 
diff --git a/src/ui/mesh/qgsmeshlayerpropertiesbase.ui b/src/ui/mesh/qgsmeshlayerpropertiesbase.ui
index a08415da76b0..5d88f6087195 100644
--- a/src/ui/mesh/qgsmeshlayerpropertiesbase.ui
+++ b/src/ui/mesh/qgsmeshlayerpropertiesbase.ui
@@ -654,9 +654,6 @@ border-radius: 2px;</string>
                 <property name="toolTip">
                  <string>Reference time used to render mesh dataset when using temporal range or temporal animation</string>
                 </property>
-                <property name="displayFormat">
-                 <string>dd/MM/yyyy HH:mm:ss</string>
-                </property>
                 <property name="calendarPopup">
                  <bool>true</bool>
                 </property>
@@ -703,9 +700,6 @@ border-radius: 2px;</string>
                 <property name="buttonSymbols">
                  <enum>QAbstractSpinBox::NoButtons</enum>
                 </property>
-                <property name="displayFormat">
-                 <string>dd/MM/yyyy HH:mm:ss</string>
-                </property>
                </widget>
               </item>
               <item row="2" column="0">
@@ -738,9 +732,6 @@ border-radius: 2px;</string>
                 <property name="showGroupSeparator" stdset="0">
                  <bool>false</bool>
                 </property>
-                <property name="displayFormat">
-                 <string>dd/MM/yyyy HH:mm:ss</string>
-                </property>
                 <property name="timeSpec">
                  <enum>Qt::UTC</enum>
                 </property>