diff --git a/homeassistant/components/delijn/sensor.py b/homeassistant/components/delijn/sensor.py
index e04385dcf3d..ee58a4f21c7 100644
--- a/homeassistant/components/delijn/sensor.py
+++ b/homeassistant/components/delijn/sensor.py
@@ -1,6 +1,7 @@
 """Support for De Lijn (Flemish public transport) information."""
 from __future__ import annotations
 
+from datetime import datetime
 import logging
 
 from pydelijn.api import Passages
@@ -111,7 +112,9 @@ class DeLijnPublicTransportSensor(SensorEntity):
             first = self.line.passages[0]
             if (first_passage := first["due_at_realtime"]) is None:
                 first_passage = first["due_at_schedule"]
-            self._attr_native_value = first_passage
+            self._attr_native_value = datetime.strptime(
+                first_passage, "%Y-%m-%dT%H:%M:%S%z"
+            )
 
             for key in AUTO_ATTRIBUTES:
                 self._attr_extra_state_attributes[key] = first[key]