diff --git a/bundles/org.openhab.binding.miio/src/main/resources/OH-INF/thing/vacuumThing.xml b/bundles/org.openhab.binding.miio/src/main/resources/OH-INF/thing/vacuumThing.xml
index c9e5e713e..ee8887766 100644
--- a/bundles/org.openhab.binding.miio/src/main/resources/OH-INF/thing/vacuumThing.xml
+++ b/bundles/org.openhab.binding.miio/src/main/resources/OH-INF/thing/vacuumThing.xml
@@ -347,14 +347,14 @@
 		<item-type>DateTime</item-type>
 		<label>Cleaning Start</label>
 		<description>Last Cleaning Start Time</description>
-		<category>Date</category>
+		<category>Time</category>
 		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="last_clean_end_time">
 		<item-type>DateTime</item-type>
 		<label>Cleaning End</label>
 		<description>Last Cleaning End Time</description>
-		<category>Date</category>
+		<category>Time</category>
 		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="last_clean_duration">
diff --git a/bundles/org.openhab.binding.ntp/src/main/resources/OH-INF/thing/thing-types.xml b/bundles/org.openhab.binding.ntp/src/main/resources/OH-INF/thing/thing-types.xml
index d4e6fea94..e58662a33 100644
--- a/bundles/org.openhab.binding.ntp/src/main/resources/OH-INF/thing/thing-types.xml
+++ b/bundles/org.openhab.binding.ntp/src/main/resources/OH-INF/thing/thing-types.xml
@@ -46,14 +46,14 @@
 		<item-type>DateTime</item-type>
 		<label>Date</label>
 		<description>NTP refreshed date &amp; time</description>
-		<category>Date</category>
+		<category>Time</category>
 		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="string-channel">
 		<item-type>String</item-type>
 		<label>Date</label>
 		<description>NTP refreshed date &amp; time</description>
-		<category>Date</category>
+		<category>Time</category>
 		<state readOnly="true"/>
 		<config-description>
 			<parameter name="DateTimeFormat" type="text" required="false">