From 16028dc9bc1beaa9fa2e50fb901eb28c8a64ae3f Mon Sep 17 00:00:00 2001
From: Raman Gupta <7243222+raman325@users.noreply.github.com>
Date: Sun, 26 Mar 2023 17:52:01 -0400
Subject: [PATCH] Add milliseconds as valid duration sensor unit (#90018)

---
 homeassistant/components/sensor/const.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/homeassistant/components/sensor/const.py b/homeassistant/components/sensor/const.py
index 356eb68b4db..892bc611b3d 100644
--- a/homeassistant/components/sensor/const.py
+++ b/homeassistant/components/sensor/const.py
@@ -485,6 +485,7 @@ DEVICE_CLASS_UNITS: dict[SensorDeviceClass, set[type[StrEnum] | str | None]] = {
         UnitOfTime.HOURS,
         UnitOfTime.MINUTES,
         UnitOfTime.SECONDS,
+        UnitOfTime.MILLISECONDS,
     },
     SensorDeviceClass.ENERGY: set(UnitOfEnergy),
     SensorDeviceClass.ENERGY_STORAGE: set(UnitOfEnergy),