Option Explicit
Dim NextTick As Date
Sub StartRefresh()
GetRefreshed
End Sub
Private Sub GetRefreshed()
Dim rngFormula As Range
Set rngFormula = Sheet1.Range("c3") '<<< adjust the range
rngFormula.Calculate
NextTick = Now + TimeValue("00:02:00")
Application.OnTime NextTick, "GetRefreshed"
End Sub
Sub StopClock()
On Error Resume Next
Application.OnTime earliesttime:=NextTick, procedure:="GetRefreshed", schedule:=False
On Error GoTo 0
End Sub