1 textbox
1 label
1 timer(1) a 100
1 timer(2) a 1000
Public Class Form1
Dim t As Integer
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Timer1.Start()
Label1.Visible = False
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
If TextBox1.Text = Format(Now, "HH:mm") Then
Timer2.Start()
End If
End Sub
Private Sub Timer2_Tick(sender As Object, e As EventArgs) Handles Timer2.Tick
Label1.Visible = True
t = t + 1
Label1.Text = t
If t = 20 Then
Label1.Visible = False
t = 0
TextBox1.Clear()
Timer2.Stop()
End If
End Sub
End Class