diff --git a/BackendWorkerService/Services/Implement/ProcEletricMeterService.cs b/BackendWorkerService/Services/Implement/ProcEletricMeterService.cs
index 0df845d..57056c1 100644
--- a/BackendWorkerService/Services/Implement/ProcEletricMeterService.cs
+++ b/BackendWorkerService/Services/Implement/ProcEletricMeterService.cs
@@ -1435,7 +1435,7 @@ namespace BackendWorkerService.Services.Implement
         /// <returns></returns>
         public IEnumerable<DateTime> EachDay(string from, string thru)
         {
-            var strtday = DateTime.Parse(from).AddDays(-1); //每次重做 2天
+            var strtday = DateTime.Parse(from).AddDays(-15); //每次重做 2天  // 20241106 因明志Niagara最多存14天資料，故考慮資料回補的狀況增多至15天
             var endday = DateTime.Parse(thru);
             for (var day = strtday.Date; day.Date <= endday.Date; day = day.AddDays(1))
                 yield return day;