diff --git a/Bin/SunnyUI.dll b/Bin/SunnyUI.dll
index 61bce4aa..b5e2b4f5 100644
Binary files a/Bin/SunnyUI.dll and b/Bin/SunnyUI.dll differ
diff --git a/Bin/SunnyUI.pdb b/Bin/SunnyUI.pdb
index ffe5870a..11b1896c 100644
Binary files a/Bin/SunnyUI.pdb and b/Bin/SunnyUI.pdb differ
diff --git a/SunnyUI.Demo/Bin/SunnyUI.Demo.exe b/SunnyUI.Demo/Bin/SunnyUI.Demo.exe
index 1a55ebee..8436a952 100644
Binary files a/SunnyUI.Demo/Bin/SunnyUI.Demo.exe and b/SunnyUI.Demo/Bin/SunnyUI.Demo.exe differ
diff --git a/SunnyUI.Demo/Bin/SunnyUI.dll b/SunnyUI.Demo/Bin/SunnyUI.dll
index 61bce4aa..b5e2b4f5 100644
Binary files a/SunnyUI.Demo/Bin/SunnyUI.dll and b/SunnyUI.Demo/Bin/SunnyUI.dll differ
diff --git a/SunnyUI/Controls/DropItem/UITimeItem.cs b/SunnyUI/Controls/DropItem/UITimeItem.cs
index 3a072a93..80d3e454 100644
--- a/SunnyUI/Controls/DropItem/UITimeItem.cs
+++ b/SunnyUI/Controls/DropItem/UITimeItem.cs
@@ -53,6 +53,41 @@ namespace Sunny.UI
         public UITimeItem()
         {
             InitializeComponent();
+            this.MouseWheel += UITimeItem_MouseWheel;
+        }
+
+        private void UITimeItem_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)
+        {
+            if (e.Delta < 0)
+            {
+                if (new Rectangle(hc.Location, h1.Size).Contains(e.X, e.Y))
+                {
+                    h1_Click(null, null);
+                }
+                else if (new Rectangle(mc.Location, m1.Size).Contains(e.X, e.Y))
+                {
+                    m1_Click(null, null);
+                }
+                else if (new Rectangle(sc.Location, s1.Size).Contains(e.X, e.Y))
+                {
+                    s1_Click(null, null);
+                }
+            }
+            else if (e.Delta > 0)
+            {
+                if (new Rectangle(hc.Location, h1.Size).Contains(e.X, e.Y))
+                {
+                    h2_Click(null, null);
+                }
+                else if (new Rectangle(mc.Location, m1.Size).Contains(e.X, e.Y))
+                {
+                    m2_Click(null, null);
+                }
+                else if (new Rectangle(sc.Location, s1.Size).Contains(e.X, e.Y))
+                {
+                    s2_Click(null, null);
+                }
+            }
         }
 
         private DateTime time;