diff --git a/tests/patch_time.py b/tests/patch_time.py
index 3489d4a6baf..c8052b3b8ac 100644
--- a/tests/patch_time.py
+++ b/tests/patch_time.py
@@ -6,6 +6,7 @@ import datetime
 import time
 
 from homeassistant import runner, util
+from homeassistant.helpers import event as event_helper
 from homeassistant.util import dt as dt_util
 
 
@@ -19,6 +20,9 @@ def _monotonic() -> float:
     return time.monotonic()
 
 
+# Replace partial functions which are not found by freezegun
 dt_util.utcnow = _utcnow  # type: ignore[assignment]
+event_helper.time_tracker_utcnow = _utcnow  # type: ignore[assignment]
 util.utcnow = _utcnow  # type: ignore[assignment]
+
 runner.monotonic = _monotonic  # type: ignore[assignment]