From 791138eb8b275b7a3a6fe2c63003a3ca56c1ca63 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Mon, 25 Apr 2022 06:56:42 -1000
Subject: [PATCH] Add duration device class to sensor platform (#70543)

---
 homeassistant/components/sensor/__init__.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/homeassistant/components/sensor/__init__.py b/homeassistant/components/sensor/__init__.py
index c5b69cbac75..6a69c27f9b6 100644
--- a/homeassistant/components/sensor/__init__.py
+++ b/homeassistant/components/sensor/__init__.py
@@ -101,6 +101,9 @@ class SensorDeviceClass(StrEnum):
     # date (ISO8601)
     DATE = "date"
 
+    # fixed duration (TIME_DAYS, TIME_HOURS, TIME_MINUTES, TIME_SECONDS)
+    DURATION = "duration"
+
     # energy (Wh, kWh, MWh)
     ENERGY = "energy"