WMI Query to get Date Difference between Server and Local Machine

Dim computer1
Dim Domaincontroller
Dim value1
Dim value2
Dim difference

strComputer = "alice"

Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")

Set colItems = objWMIService.ExecQuery("Select * From Win32_LocalTime")

For Each objItem in colItems
    intMonth = objItem.Month
    intDay = objItem.Day
    intYear = objItem.Year

    dtmDate = intMonth & "/" & intDay & "/" & intYear

    intHour = objItem.Hour
    If intHour < 12 Then
        strAMPM = "AM"
    Else
        intHour = intHour - 12
        strAMPM = "PM"
    End If
 
    intMinutes = objItem.Minute
    If intMinutes < 10 Then
        intMinutes = "0" & intMinutes
    End If

    intSeconds = objItem.Second
    If intSeconds < 10 Then
        intSeconds = "0" & intSeconds
    End If

    dtmTime = intHour & ":" & intMinutes & ":" & intSeconds & " " & strAMPM
    firstDate = dtmDate & " " & dtmTime
    'Wscript.Echo firstDate
Next


strComputer1 = "dc1"

Set objWMIService = GetObject("winmgmts:\\" & strComputer1 & "\root\cimv2")

Set colItems1 = objWMIService.ExecQuery("Select * From Win32_LocalTime")

For Each objItem in colItems1
    intMonth = objItem.Month
    intDay = objItem.Day
    intYear = objItem.Year

    dtmDate = intMonth & "/" & intDay & "/" & intYear

    intHour = objItem.Hour
    If intHour < 12 Then
        strAMPM = "AM"
    Else
        intHour = intHour - 12
        strAMPM = "PM"
    End If
 
    intMinutes = objItem.Minute
    If intMinutes < 10 Then
        intMinutes = "0" & intMinutes
    End If

    intSeconds = objItem.Second
    If intSeconds < 10 Then
        intSeconds = "0" & intSeconds
    End If

    dtmTime = intHour & ":" & intMinutes & ":" & intSeconds & " " & strAMPM
    nextDate = dtmDate & " " & dtmTime
   ' Wscript.Echo nextDate

next


myDif = DateDiff("s",firstDate,nextDate)
'Wscript.Echo myDif

ourMessage  = "hi"
If myDif > 900 Then
        ourMessage = "0"
    Else       
        ourMessage = "1"
    End If

If myDif < -900 Then
        ourMessage = "0"
    Else       
        ourMessage = "1"
    End If

Wscript.Echo ourMessage


'///////////////////////////////////////////
' Convert WMI Time Function
'///////////////////////////////////////////
On Error Resume Next
Function ConvWMITime(wmiTime)

yr = left(wmiTime,4)
mo = mid(wmiTime,5,2)
dy = mid(wmiTime,7,2)
tm = mid(wmiTime,9,6)

ConvWMITime = mo&"/"&dy&"/"&yr & " " & FormatDateTime(left(tm,2) & _
":" & Mid(tm,3,2) & ":" & Right(tm,2),3)

End Function