diff --git a/api/service/coupon.go b/api/service/coupon.go
index 414a32a..c88cb69 100644
--- a/api/service/coupon.go
+++ b/api/service/coupon.go
@@ -174,7 +174,7 @@ func (r *CouponService) AddSystemCoupon(req requests.AddSystemCoupon) (bool, err
 
 	// 时间区间
 	if req.ValidStartTime != nil {
-		t, err := time.Parse("2006-01-02", *req.ValidStartTime)
+		t, err := time.Parse("2006-01-02 15:04:05", *req.ValidStartTime)
 		if err != nil {
 			tx.Rollback()
 			return false, errors.New("新增失败")
@@ -186,7 +186,7 @@ func (r *CouponService) AddSystemCoupon(req requests.AddSystemCoupon) (bool, err
 	}
 
 	if req.ValidEndTime != nil {
-		t, err := time.Parse("2006-01-02", *req.ValidEndTime)
+		t, err := time.Parse("2006-01-02 15:04:05", *req.ValidEndTime)
 		if err != nil {
 			tx.Rollback()
 			return false, errors.New("新增失败")