diff --git a/apps/wpm/services.py b/apps/wpm/services.py
index 66f416f7..dad7739c 100644
--- a/apps/wpm/services.py
+++ b/apps/wpm/services.py
@@ -32,7 +32,7 @@ def get_sflog(mgroup: Mgroup, happen_time: datetime):
         start_time__lte=happen_time, end_time__gt=happen_time, mgroup=mgroup).order_by('-start_time').first()
     if sflog is None:  # 需要创建值班记录
         make_sflogs(mgroup=mgroup, start_date=(
-            happen_time-datetime.timedelta(days=1)).date(), end_date=(happen_time+datetime.timedelta(days=1)).date())
+            happen_time-datetime.timedelta(days=2)).date(), end_date=(happen_time+datetime.timedelta(days=1)).date())
         sflog = SfLog.objects.filter(
             start_time__lte=happen_time, end_time__gt=happen_time, mgroup=mgroup).order_by('-start_time').first()
     return sflog