diff --git a/BackendWorkerService/Quartz/Jobs/ArchiveElectricMeterDayJob.cs b/BackendWorkerService/Quartz/Jobs/ArchiveElectricMeterDayJob.cs
index 1442ae2..220b566 100644
--- a/BackendWorkerService/Quartz/Jobs/ArchiveElectricMeterDayJob.cs
+++ b/BackendWorkerService/Quartz/Jobs/ArchiveElectricMeterDayJob.cs
@@ -99,7 +99,7 @@ namespace BackendWorkerService.Quartz.Jobs
                                 deviceNumberPoint.Point = point.points;
                                 deviceNumberPoint.FullDeviceNumberPoint = string.Format("{0}_{1}", electricMeter.Device_number, point.points);
                                 deviceNumberPoint.archive_lastDate = electricMeter.archive_lastDate;
-                                deviceNumberPoint.created_at = electricMeter.created_at;
+                                deviceNumberPoint.created_at = Convert.ToDateTime(electricMeter.Created_at);
                                 electricDeviceNumberPoints.Add(deviceNumberPoint);
                             }
                         }
@@ -118,7 +118,7 @@ namespace BackendWorkerService.Quartz.Jobs
                                 deviceNumberPoint.Point = point.points;
                                 deviceNumberPoint.FullDeviceNumberPoint = string.Format("{0}_{1}", waterMeter.Device_number, point.points);
                                 deviceNumberPoint.archive_lastDate = waterMeter.archive_lastDate;
-                                deviceNumberPoint.created_at = waterMeter.created_at;
+                                deviceNumberPoint.created_at = Convert.ToDateTime(waterMeter.Created_at);
                                 waterDeviceNumberPoints.Add(deviceNumberPoint);
                             }
                         }