diff --git a/routers/repo/user_data_analysis.go b/routers/repo/user_data_analysis.go
index d7038103f..b94762341 100755
--- a/routers/repo/user_data_analysis.go
+++ b/routers/repo/user_data_analysis.go
@@ -346,6 +346,7 @@ func QueryUserStaticCurrentMonth(ctx *context.Context) {
 
 func getStartTime(pageStartTime time.Time) time.Time {
 	t, _ := time.Parse("2006-01-02", setting.RadarMap.GrowthBeginTime)
+	t = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 1, t.Location())
 	if pageStartTime.Before(t) {
 		pageStartTime = t
 	}