diff --git a/algorithms.py b/algorithms.py
index b1e5da9..b1f0fa4 100644
--- a/algorithms.py
+++ b/algorithms.py
@@ -132,7 +132,7 @@ class LeavePostAlgorithm:
                     "alert_type": "alarm_resolve",
                     "resolve_alarm_id": self._last_alarm_id,
                     "duration_ms": duration_ms,
-                    "last_frame_time": current_time.isoformat(),
+                    "last_frame_time": current_time.strftime('%Y-%m-%d %H:%M:%S'),
                     "resolve_type": "non_work_time",
                 })
                 self._last_alarm_id = None
@@ -230,7 +230,7 @@ class LeavePostAlgorithm:
                         "alert_type": "alarm_resolve",
                         "resolve_alarm_id": self._last_alarm_id,
                         "duration_ms": duration_ms,
-                        "last_frame_time": current_time.isoformat(),
+                        "last_frame_time": current_time.strftime('%Y-%m-%d %H:%M:%S'),
                         "resolve_type": "person_returned",
                     })
                 self._last_alarm_id = None