diff --git a/custom_components/tibber_prices/sensor/definitions.py b/custom_components/tibber_prices/sensor/definitions.py
index f6ed421..8dd956e 100644
--- a/custom_components/tibber_prices/sensor/definitions.py
+++ b/custom_components/tibber_prices/sensor/definitions.py
@@ -524,6 +524,7 @@ FUTURE_TREND_SENSORS = (
         icon="mdi:timer-outline",
         device_class=SensorDeviceClass.DURATION,
         native_unit_of_measurement=UnitOfTime.HOURS,
+        suggested_unit_of_measurement=UnitOfTime.HOURS,
         state_class=None,  # Countdown timer: no statistics
         suggested_display_precision=2,
         entity_registry_enabled_default=True,
@@ -685,6 +686,7 @@ BEST_PRICE_TIMING_SENSORS = (
         icon="mdi:timer",
         device_class=SensorDeviceClass.DURATION,
         native_unit_of_measurement=UnitOfTime.HOURS,
+        suggested_unit_of_measurement=UnitOfTime.HOURS,
         state_class=None,  # Duration not needed in long-term statistics
         suggested_display_precision=2,
         entity_registry_enabled_default=False,
@@ -695,6 +697,7 @@ BEST_PRICE_TIMING_SENSORS = (
         icon="mdi:timer-sand",
         device_class=SensorDeviceClass.DURATION,
         native_unit_of_measurement=UnitOfTime.HOURS,
+        suggested_unit_of_measurement=UnitOfTime.HOURS,
         state_class=None,  # Countdown timers excluded from statistics
         suggested_display_precision=2,
     ),
@@ -719,6 +722,7 @@ BEST_PRICE_TIMING_SENSORS = (
         icon="mdi:timer-outline",
         device_class=SensorDeviceClass.DURATION,
         native_unit_of_measurement=UnitOfTime.HOURS,
+        suggested_unit_of_measurement=UnitOfTime.HOURS,
         state_class=None,  # Next-start timers excluded from statistics
         suggested_display_precision=2,
     ),
@@ -738,6 +742,7 @@ PEAK_PRICE_TIMING_SENSORS = (
         icon="mdi:timer",
         device_class=SensorDeviceClass.DURATION,
         native_unit_of_measurement=UnitOfTime.HOURS,
+        suggested_unit_of_measurement=UnitOfTime.HOURS,
         state_class=None,  # Duration not needed in long-term statistics
         suggested_display_precision=2,
         entity_registry_enabled_default=False,
@@ -748,6 +753,7 @@ PEAK_PRICE_TIMING_SENSORS = (
         icon="mdi:timer-sand",
         device_class=SensorDeviceClass.DURATION,
         native_unit_of_measurement=UnitOfTime.HOURS,
+        suggested_unit_of_measurement=UnitOfTime.HOURS,
         state_class=None,  # Countdown timers excluded from statistics
         suggested_display_precision=2,
     ),
@@ -772,6 +778,7 @@ PEAK_PRICE_TIMING_SENSORS = (
         icon="mdi:timer-outline",
         device_class=SensorDeviceClass.DURATION,
         native_unit_of_measurement=UnitOfTime.HOURS,
+        suggested_unit_of_measurement=UnitOfTime.HOURS,
         state_class=None,  # Next-start timers excluded from statistics
         suggested_display_precision=2,
     ),