创建一个简单的计时器来计算秒、分钟和小时

我正在尝试创建一个非常简单的程序，基本上是一个计时器。 我有三套标签，lbl_seconds, lbl_minutes and lbl_hours。 这些标签的默认值为00:00我希望计时器为每个标签更改它。我已经用谷歌搜索过这个，但我似乎找不到任何关于它的好信息。

我需要三个独立的计时器吗？我还注意到计时器有自己的滴答事件处理程序。我想正是在这一点上我需要更改标签的值。如何做到这一点？

这是一个例子

Dim timercount As Integer = 60 'The number of seconds 
Private Sub btnStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStart.Click
    Timer1.Interval = 1000 'The number of miliseconds in a second
    Timer1.Enabled = True 'Start the timer
End Sub

Private Sub btnReset_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReset.Click
    Timer1.Enabled = False 'Stop the timer
    timercount = 60 'Reset to 60 seconds
    lblOutput.Text = timercount.ToString() 'Reset the output display to 60
End Sub

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
    lblOutput.Text = timercount.ToString() 'show the countdown in the label
    If timercount = 0 Then 'Check to see if it has reached 0, if yes then stop timer and display done
        Timer1.Enabled = False
        lblOutput.Text = "Done"
    Else 'If timercount is higher then 0 then subtract one from it
        timercount -= 1
    End If
End Sub