How to give a time delay of less than one second in excel vba?

Question

i want to repeat an event after a certain duration that is less than 1 second. I tried using the following code

Application.wait Now + TimeValue (\"00:00:01\         


        

Answer 1

To pause for 0.8 of a second:

Sub main()
    startTime = Timer
    Do
    Loop Until Timer - startTime >= 0.8
End Sub

Answer 2

Obviously an old post, but this seems to be working for me....

Application.Wait (Now + TimeValue("0:00:01") / 1000)

Divide by whatever you need. A tenth, a hundredth, etc. all seem to work. By removing the "divide by" portion, the macro does take longer to run, so therefore, with no errors present, I have to believe it works.

Answer 3

No answer helped me, so I build this.

'   function Timestamp return current time in milliseconds.
'   compatible with JSON or JavaScript Date objects.

Public Function Timestamp () As Currency
    timestamp = (Round(Now(), 0) * 24 * 60 * 60 + Timer()) * 1000
End Function

'   function Sleep let system execute other programs while the milliseconds are not elapsed.

Public Function Sleep(milliseconds As Currency)

    If milliseconds < 0 Then Exit Function

    Dim start As Currency
    start = Timestamp ()

    While (Timestamp () < milliseconds + start)
        DoEvents
    Wend
End Function

Note : In Excel 2007, Now() send Double with decimals to seconds, so i use Timer() to get milliseconds.

Note : Application.Wait() accept seconds and no under (i.e. Application.Wait(Now()) ↔ Application.Wait(Now()+100*millisecond)))

Note : Application.Wait() doesn't let system execute other program but hardly reduce performance. Prefer usage of DoEvents.

Answer 4

Public Function CheckWholeNumber(Number As Double) As Boolean
    If Number - Fix(Number) = 0 Then
        CheckWholeNumber = True
    End If
End Function

Public Sub TimeDelay(Days As Double, Hours As Double, Minutes As Double, Seconds As Double)
    If CheckWholeNumber(Days) = False Then
        Hours = Hours + (Days - Fix(Days)) * 24
        Days = Fix(Days)
    End If
    If CheckWholeNumber(Hours) = False Then
        Minutes = Minutes + (Hours - Fix(Hours)) * 60
        Hours = Fix(Hours)
    End If
    If CheckWholeNumber(Minutes) = False Then
        Seconds = Seconds + (Minutes - Fix(Minutes)) * 60
        Minutes = Fix(Minutes)
    End If
    If Seconds >= 60 Then
        Seconds = Seconds - 60
        Minutes = Minutes + 1
    End If
    If Minutes >= 60 Then
        Minutes = Minutes - 60
        Hours = Hours + 1
    End If
    If Hours >= 24 Then
        Hours = Hours - 24
        Days = Days + 1
    End If
    Application.Wait _
    ( _
        Now + _
        TimeSerial(Hours + Days * 24, Minutes, 0) + _
        Seconds * TimeSerial(0, 0, 1) _
    )
End Sub

example:

call TimeDelay(1.9,23.9,59.9,59.9999999)

hopy you enjoy.

edit:

here's one without any additional functions, for people who like it being faster

Public Sub WaitTime(Days As Double, Hours As Double, Minutes As Double, Seconds As Double)
    If Days - Fix(Days) > 0 Then
        Hours = Hours + (Days - Fix(Days)) * 24
        Days = Fix(Days)
    End If
    If Hours - Fix(Hours) > 0 Then
        Minutes = Minutes + (Hours - Fix(Hours)) * 60
        Hours = Fix(Hours)
    End If
    If Minutes - Fix(Minutes) > 0 Then
        Seconds = Seconds + (Minutes - Fix(Minutes)) * 60
        Minutes = Fix(Minutes)
    End If
    If Seconds >= 60 Then
        Seconds = Seconds - 60
        Minutes = Minutes + 1
    End If
    If Minutes >= 60 Then
        Minutes = Minutes - 60
        Hours = Hours + 1
    End If
    If Hours >= 24 Then
        Hours = Hours - 24
        Days = Days + 1
    End If
    Application.Wait _
    ( _
        Now + _
        TimeSerial(Hours + Days * 24, Minutes, 0) + _
        Seconds * TimeSerial(0, 0, 1) _
    )
End Sub