Access/Excel VBA - Time delay

Question

Note:

1. Refresh tables in Excel that are linked to an Access database

2. Tables in Excel need to be refreshed in order e.g Test_Sheet1, Test_Sheet2,

Answer 1

'This code pauses running code using the timer function, making special provisions for midnight (when the timer resets to 0). Implemented in MS Access

 Public Sub Pause(NumberOfSeconds As Double)
On Error GoTo error_goto

Dim PauseInterval As Variant   'Pause interval is the wait time
Dim StartTime As Variant       'wait start time
Dim ElapsedInterval As Variant  'time elapsed from start time to now
Dim preMidnightInterval As Variant   'time interval from start time to midnight
Dim endTime As Variant

'initializing variables
PauseInterval = NumberOfSeconds
StartTime = Timer
ElapsedInerval = 0
preMidnightInterval = 0
endTime = StartTime + PauseInterval

Do While ElapsedInterval < PauseInterval
ElapsedInterval = Timer - StartTime + preMidnightInterval
'During the day premidnightInterval =0
'shortly after midnight is passed timer is almost 0 and preMidnightInterval becomes non zero
'detecting midnight switch
'the instant midnight is passed ElapsedInterval = 0 - starttime + 0
    If ElapsedInterval < 0 Then
    preMidnightInterval = 86400 - StartTime 'interval segment before midnight
    StartTime = 0       'reset start time to midnight
    End If
DoEvents

Loop
'Debug.Print "starttime " & StartTime & "elapsed interval " & ElapsedInterval & " timer:" & Timer & "endtime:" & endTime
Exit_GoTo:
'On Error GoTo 0
Exit Sub

error_goto:
Debug.Print Err.Number, Err.Description, er1
GoTo Exit_GoTo

End Sub