diff --git a/homeassistant/components/tibber/sensor.py b/homeassistant/components/tibber/sensor.py
index 066e1f921c5..31106990a03 100644
--- a/homeassistant/components/tibber/sensor.py
+++ b/homeassistant/components/tibber/sensor.py
@@ -613,7 +613,7 @@ class TibberDataCoordinator(DataUpdateCoordinator):
                         else home.hourly_consumption_data
                     )
 
-                    from_time = hourly_data[0]["from"]
+                    from_time = dt_util.parse_datetime(hourly_data[0]["from"])
                     if from_time is None:
                         continue
                     start = from_time - timedelta(hours=1)