diff --git a/HealthMonitor.WebApi/Worker.cs b/HealthMonitor.WebApi/Worker.cs
index e1bca04..2c520e0 100644
--- a/HealthMonitor.WebApi/Worker.cs
+++ b/HealthMonitor.WebApi/Worker.cs
@@ -470,7 +470,7 @@ namespace HealthMonitor.WebApi
                                                 {
                                                     var duringMins = Math.Abs((phrRange.First() - statStartTime).TotalMinutes);
                                                     //在餐后时间段（8:00~10:00，12:00~14:00，18:00~20:00，22:00~24:00）取中间值。其他时间段取正常起始值
-                                                    bool isInTimeRanges = IsLastUpdateInTimeRanges(statEndTime);
+                                                    bool isInTimeRanges = IsLastUpdateInTimeRanges(phrRange.First());
 
                                                     int pregnancyWeeks = (DateTime.Now - edoc.AddDays(-280)).Days / 7;
                                                     if (pregnancyWeeks >= 12 && pregnancyWeeks <= 50)