diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 5526b2b3..138908d9 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -50,11 +50,11 @@ class StLogSerializer(CustomModelSerializer):
             validated_data.pop('mgroup', None)
             validated_data.pop('start_time', None)
             end_time = validated_data.pop('end_time', None)
-            if end_time:  # 需要把涉及到的sflog都拉入
-                cal_exp_duration_hour(instance.id)
             current_sflog = validated_data.pop('current_sflog')
             current_note = validated_data.pop('current_note', '')
             instance = super().update(instance, validated_data)
+            if end_time:  # 需要把涉及到的sflog都拉入
+                cal_exp_duration_hour(instance.id)
             try:
                 sflogexp = SfLogExp.objects.get(
                     stlog=instance.stlog, sflog=current_sflog)
@@ -65,9 +65,14 @@ class StLogSerializer(CustomModelSerializer):
             return instance
 
     def validate(self, attrs):
+        now = timezone.now()
         start_time: datetime = attrs['start_time']
         end_time: datetime = attrs.get('end_time', None)
+        if start_time > now:
+            raise ParseError('开始时间应为历史时间')
         if end_time:
+            if end_time > now:
+                raise ParseError('开始时间应为历史时间')
             if end_time > start_time:
                 attrs['duration'] = (
                     end_time - start_time).total_seconds / 3600