multiple countdown timers in excel?

Put this code in a module, run the sub SetMultipleTimers and watch Sheet1.

Sub SetMultipleTimers()
    
    With Worksheets("Sheet1")
        .Range("C1:C5").Value = ""
        .Range("C1").Value = "Timers set on " & Now()
    End With
    Application.OnTime Now() + TimeValue("00:00:10"), "macro1"
    Application.OnTime Now() + TimeValue("00:00:15"), "macro2"
    Application.OnTime Now() + TimeValue("00:00:20"), "macro3"
    Application.OnTime Now() + TimeValue("00:00:25"), "macro4"
    Application.OnTime Now() + TimeValue("00:00:30"), "macro5"

End Sub
Sub macro1()
    With Worksheets("Sheet1")
        .Range("C2").Value = "Macro1. Executed on " & Now()
    End With
End Sub
Sub macro2()
    With Worksheets("Sheet1")
        .Range("C3").Value = "Macro2. Executed on " & Now()
    End With
End Sub
Sub macro3()
    With Worksheets("Sheet1")
        .Range("C4").Value = "Macro3. Executed on " & Now()
    End With
End Sub
Sub macro4()
    With Worksheets("Sheet1")
        .Range("C5").Value = "Macro4. Executed on " & Now()
    End With
End Sub
Sub macro5()
    With Worksheets("Sheet1")
        .Range("C1:C5").Value = ""
    End With
End Sub