diff --git a/services/pln/implments/CustOrder.service.impl.go b/services/pln/implments/CustOrder.service.impl.go
index 6f851fc..2ed68f0 100644
--- a/services/pln/implments/CustOrder.service.impl.go
+++ b/services/pln/implments/CustOrder.service.impl.go
@@ -1709,7 +1709,7 @@ func (impl *CustOrderServiceImplement) QuickSortProductData(values []model.HourP
 	head, tail := 0, len(values)-1
 	for head < tail {
 		iTime := values[i].LastDoneTime
-		if iTime.Before(midTime) {
+		if iTime.After(midTime) {
 			values[i], values[tail] = values[tail], values[i]
 			tail--
 		} else {