diff --git a/CapMachine.Wpf/Converts/SecToStrConvert.cs b/CapMachine.Wpf/Converts/SecToStrConvert.cs
index 5a392c6..85ae834 100644
--- a/CapMachine.Wpf/Converts/SecToStrConvert.cs
+++ b/CapMachine.Wpf/Converts/SecToStrConvert.cs
@@ -43,10 +43,22 @@ namespace CapMachine.Wpf.Converts
             //int second = TotalSec % 60;
 
             //return string.Format("{0}:{1}:{2}", hour, minute, second);
-            ////Console.WriteLine(result);
+            //////Console.WriteLine(result);
 
-            TimeSpan TimeInfo = TimeSpan.FromSeconds(TotalSec);
-            return TimeInfo.ToString();
+            //TimeSpan TimeInfo = TimeSpan.FromSeconds(TotalSec);
+            //return TimeInfo.ToString();
+
+            return ConvertSecToTimeStr(TotalSec);
+        }
+
+        private string ConvertSecToTimeStr(int totalSeconds)
+        {
+            int hours = totalSeconds / 3600;
+            int remainingSeconds = totalSeconds % 3600;
+            int minutes = remainingSeconds / 60;
+            int seconds = remainingSeconds % 60;
+
+            return $"{hours}:{minutes:D2}:{seconds:D2}";
         }
 
         /// <summary>
@@ -57,16 +69,35 @@ namespace CapMachine.Wpf.Converts
         {
             try
             {
-                TimeSpan TimeInfo = TimeSpan.Parse(timeString);
-                return (int)TimeInfo.TotalSeconds;
+                //TimeSpan TimeInfo = TimeSpan.Parse(timeString);
+                //return (int)TimeInfo.TotalSeconds;
+                return ConvertTimeStrToSecs(timeString);
             }
             catch (Exception ex)
             {
                 MessageBox.Show("时间格式输入不正确");
                 return (int)0;
             }
-           
-            
+
+
+        }
+
+        public int ConvertTimeStrToSecs(string timeString)
+        {
+            string[] parts = timeString.Split(':');
+            if (parts.Length != 3) return 0;
+            //throw new FormatException("Invalid time format. Use 'hh:mm:ss'");
+
+            if (!int.TryParse(parts[0], out int hours) || hours < 0) return 0;
+            //throw new ArgumentException("小時必須為非負整數");
+
+            if (!int.TryParse(parts[1], out int minutes) || minutes < 0 || minutes >= 60) return 0;
+            //throw new ArgumentException("分鐘必須為 0-59 的整數");
+
+            if (!int.TryParse(parts[2], out int seconds) || seconds < 0 || seconds >= 60) return 0;
+            //throw new ArgumentException("秒必須為 0-59 的整數");
+
+            return hours * 3600 + minutes * 60 + seconds;
         }
     }
 }
diff --git a/CapMachine.Wpf/ViewModels/ProConfigViewModel.cs b/CapMachine.Wpf/ViewModels/ProConfigViewModel.cs
index 29b7123..70c5f63 100644
--- a/CapMachine.Wpf/ViewModels/ProConfigViewModel.cs
+++ b/CapMachine.Wpf/ViewModels/ProConfigViewModel.cs
@@ -15956,8 +15956,12 @@ namespace CapMachine.Wpf.ViewModels
         {
             try
             {
-                TimeSpan TimeInfo = TimeSpan.FromSeconds(TotalSec);
-                return TimeInfo.ToString();
+                int hours = TotalSec / 3600;
+                int remainingSeconds = TotalSec % 3600;
+                int minutes = remainingSeconds / 60;
+                int seconds = remainingSeconds % 60;
+
+                return $"{hours}:{minutes:D2}:{seconds:D2}";
             }
             catch (Exception ex)
             {