To output a script's execution time, include this at the beginning:
 
    dtmStartTime = Timer
 
And include this at the end:
 
    Wscript.Echo "Script execution time: " & Round(Timer - dtmStartTime, 2) & " seconds"
 
The Timer function returns the number of seconds that have elapsed since midnight (12:00 a.m.). The Round function controls the number of decimal places displayed.
 
Here is a function that will convert seconds to days, hours, and minutes.
 
Function GetElapsedTime
    Const SECONDS_IN_DAY = 86400
    Const SECONDS_IN_HOUR = 3600
    Const SECONDS_IN_MINUTE = 60
    Const SECONDS_IN_WEEK = 604800
    dtmEndTime = Timer
    seconds = Round(dtmEndTime - dtmStartTime, 2)
    If seconds < SECONDS_IN_MINUTE Then
        GetElapsedTime = seconds & " seconds "
        Exit Function
    End If
    If seconds < SECONDS_IN_HOUR Then
        minutes = seconds / SECONDS_IN_MINUTE
        seconds = seconds MOD SECONDS_IN_MINUTE
        GetElapsedTime = Int(minutes) & " minutes " & seconds & " seconds "
        Exit Function
    End If
    If seconds < SECONDS_IN_DAY Then
        hours = seconds / SECONDS_IN_HOUR
        minutes = (seconds MOD SECONDS_IN_HOUR) / SECONDS_IN_MINUTE
        seconds = (seconds MOD SECONDS_IN_HOUR) MOD SECONDS_IN_MINUTE
        GetElapsedTime = Int(hours) & " hours " & Int(minutes) & " minutes " & seconds & " seconds "
        Exit Function
    End If
    If seconds < SECONDS_IN_WEEK Then
        days = seconds / SECONDS_IN_DAY
        hours = (seconds MOD SECONDS_IN_DAY) / SECONDS_IN_HOUR
        minutes = ((seconds MOD SECONDS_IN_DAY) MOD SECONDS_IN_HOUR) / SECONDS_IN_MINUTE
        seconds = ((seconds MOD SECONDS_IN_DAY) MOD SECONDS_IN_HOUR) MOD SECONDS_IN_MINUTE
        GetElapsedTime = Int(days) & " days " & Int(hours) & " hours " & Int(minutes) & " minutes " & seconds & " seconds "
        Exit Function
    End If
End Function
 
Here is a sample script using the function that prints "Hello World!" to the screen, waits for 1 second, then outputs the script execution time.
 
dtmStartTime = Timer
Wscript.Echo "Hello, World!"
Wscript.Sleep 1000
Wscript.Echo "Script completed in " & GetElapsedTime
 
Function GetElapsedTime
    Const SECONDS_IN_DAY = 86400
    Const SECONDS_IN_HOUR = 3600
    Const SECONDS_IN_MINUTE = 60
    Const SECONDS_IN_WEEK = 604800
 
    dtmEndTime = Timer
 
    seconds = Round(dtmEndTime - dtmStartTime, 2)
    If seconds < SECONDS_IN_MINUTE Then
        GetElapsedTime = seconds & " seconds "
        Exit Function
    End If
    If seconds < SECONDS_IN_HOUR Then
        minutes = seconds / SECONDS_IN_MINUTE
        seconds = seconds MOD SECONDS_IN_MINUTE
        GetElapsedTime = Int(minutes) & " minutes " & seconds & " seconds "
        Exit Function
    End If
    If seconds < SECONDS_IN_DAY Then
        hours = seconds / SECONDS_IN_HOUR
        minutes = (seconds MOD SECONDS_IN_HOUR) / SECONDS_IN_MINUTE
        seconds = (seconds MOD SECONDS_IN_HOUR) MOD SECONDS_IN_MINUTE
        GetElapsedTime = Int(hours) & " hours " & Int(minutes) & " minutes " & seconds & " seconds "
        Exit Function
    End If
    If seconds < SECONDS_IN_WEEK Then
        days = seconds / SECONDS_IN_DAY
        hours = (seconds MOD SECONDS_IN_DAY) / SECONDS_IN_HOUR
        minutes = ((seconds MOD SECONDS_IN_DAY) MOD SECONDS_IN_HOUR) / SECONDS_IN_MINUTE
        seconds = ((seconds MOD SECONDS_IN_DAY) MOD SECONDS_IN_HOUR) MOD SECONDS_IN_MINUTE
        GetElapsedTime = Int(days) & " days " & Int(hours) & " hours " & Int(minutes) & " minutes " & seconds & " seconds "
        Exit Function
    End If
End Function