diff --git a/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/LjReport/WetTimeCounting.cs b/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/LjReport/WetTimeCounting.cs
index 709ed75..6466c12 100644
--- a/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/LjReport/WetTimeCounting.cs
+++ b/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/LjReport/WetTimeCounting.cs
@@ -229,7 +229,7 @@ namespace Mesnac.Action.ChemicalWeighing.LjReport
         private string TimeConvert(int t)
         {
             int h = t / 3600;
-            int m = t / 60;
+            int m = (t / 60) % 60;
             int s = t % 60;
             if (h != 0)
             {