From ff68fea56c51de5cb6d600912a958ac7ec9a9acb Mon Sep 17 00:00:00 2001
From: Samuel Siburian <samuelbles07@gmail.com>
Date: Mon, 5 Oct 2026 21:50:09 +0800
Subject: [PATCH] Fix AirGradient VOC and NOx learning offset units (#180305)

---
 .../components/airgradient/sensor.py          |  4 ++--
 .../airgradient/snapshots/test_sensor.ambr    | 24 +++++++++----------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/homeassistant/components/airgradient/sensor.py b/homeassistant/components/airgradient/sensor.py
index 3f5ee2a20515..9b967914cd3c 100644
--- a/homeassistant/components/airgradient/sensor.py
+++ b/homeassistant/components/airgradient/sensor.py
@@ -236,7 +236,7 @@ CONFIG_SENSOR_TYPES: tuple[AirGradientConfigSensorEntityDescription, ...] = (
         key="nox_learning_offset",
         translation_key="nox_learning_offset",
         device_class=SensorDeviceClass.DURATION,
-        native_unit_of_measurement=UnitOfTime.DAYS,
+        native_unit_of_measurement=UnitOfTime.HOURS,
         entity_category=EntityCategory.DIAGNOSTIC,
         config_key="nox_learning_offset",
         value_fn=lambda config: config.nox_learning_offset,
@@ -245,7 +245,7 @@ CONFIG_SENSOR_TYPES: tuple[AirGradientConfigSensorEntityDescription, ...] = (
         key="tvoc_learning_offset",
         translation_key="tvoc_learning_offset",
         device_class=SensorDeviceClass.DURATION,
-        native_unit_of_measurement=UnitOfTime.DAYS,
+        native_unit_of_measurement=UnitOfTime.HOURS,
         entity_category=EntityCategory.DIAGNOSTIC,
         config_key="tvoc_learning_offset",
         value_fn=lambda config: config.tvoc_learning_offset,
diff --git a/tests/components/airgradient/snapshots/test_sensor.ambr b/tests/components/airgradient/snapshots/test_sensor.ambr
index 91e074a9bb8c..96f31c05e49e 100644
--- a/tests/components/airgradient/snapshots/test_sensor.ambr
+++ b/tests/components/airgradient/snapshots/test_sensor.ambr
@@ -538,7 +538,7 @@
     'supported_features': 0,
     'translation_key': 'nox_learning_offset',
     'unique_id': '84fce612f5b8-nox_learning_offset',
-    'unit_of_measurement': <UnitOfTime.DAYS: 'd'>,
+    'unit_of_measurement': <UnitOfTime.HOURS: 'h'>,
   })
 # ---
 # name: test_all_entities[indoor][sensor.airgradient_nox_index_learning_offset-state]
@@ -546,7 +546,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'duration',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Airgradient NOx index learning offset',
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.DAYS: 'd'>,
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.HOURS: 'h'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.airgradient_nox_index_learning_offset',
@@ -1141,7 +1141,7 @@
     'supported_features': 0,
     'translation_key': 'tvoc_learning_offset',
     'unique_id': '84fce612f5b8-tvoc_learning_offset',
-    'unit_of_measurement': <UnitOfTime.DAYS: 'd'>,
+    'unit_of_measurement': <UnitOfTime.HOURS: 'h'>,
   })
 # ---
 # name: test_all_entities[indoor][sensor.airgradient_voc_index_learning_offset-state]
@@ -1149,7 +1149,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'duration',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Airgradient VOC index learning offset',
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.DAYS: 'd'>,
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.HOURS: 'h'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.airgradient_voc_index_learning_offset',
@@ -1304,7 +1304,7 @@
     'supported_features': 0,
     'translation_key': 'nox_learning_offset',
     'unique_id': '84fce612f5b8-nox_learning_offset',
-    'unit_of_measurement': <UnitOfTime.DAYS: 'd'>,
+    'unit_of_measurement': <UnitOfTime.HOURS: 'h'>,
   })
 # ---
 # name: test_all_entities[outdoor][sensor.airgradient_nox_index_learning_offset-state]
@@ -1312,7 +1312,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'duration',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Airgradient NOx index learning offset',
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.DAYS: 'd'>,
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.HOURS: 'h'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.airgradient_nox_index_learning_offset',
@@ -1575,7 +1575,7 @@
     'supported_features': 0,
     'translation_key': 'tvoc_learning_offset',
     'unique_id': '84fce612f5b8-tvoc_learning_offset',
-    'unit_of_measurement': <UnitOfTime.DAYS: 'd'>,
+    'unit_of_measurement': <UnitOfTime.HOURS: 'h'>,
   })
 # ---
 # name: test_all_entities[outdoor][sensor.airgradient_voc_index_learning_offset-state]
@@ -1583,7 +1583,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'duration',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Airgradient VOC index learning offset',
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.DAYS: 'd'>,
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.HOURS: 'h'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.airgradient_voc_index_learning_offset',
@@ -2139,7 +2139,7 @@
     'supported_features': 0,
     'translation_key': 'nox_learning_offset',
     'unique_id': '84fce612f5b8-nox_learning_offset',
-    'unit_of_measurement': <UnitOfTime.DAYS: 'd'>,
+    'unit_of_measurement': <UnitOfTime.HOURS: 'h'>,
   })
 # ---
 # name: test_v1_entities[sensor.airgradient_nox_index_learning_offset-state]
@@ -2147,7 +2147,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'duration',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Airgradient NOx index learning offset',
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.DAYS: 'd'>,
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.HOURS: 'h'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.airgradient_nox_index_learning_offset',
@@ -2957,7 +2957,7 @@
     'supported_features': 0,
     'translation_key': 'tvoc_learning_offset',
     'unique_id': '84fce612f5b8-tvoc_learning_offset',
-    'unit_of_measurement': <UnitOfTime.DAYS: 'd'>,
+    'unit_of_measurement': <UnitOfTime.HOURS: 'h'>,
   })
 # ---
 # name: test_v1_entities[sensor.airgradient_voc_index_learning_offset-state]
@@ -2965,7 +2965,7 @@
     'attributes': ReadOnlyDict({
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'duration',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Airgradient VOC index learning offset',
-      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.DAYS: 'd'>,
+      <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: <UnitOfTime.HOURS: 'h'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.airgradient_voc_index_learning_offset',