better way to convert seconds into dd:hh:mm:ss?

[nahya^^]

right now i have

'Start time conversion
        If Secs > 60 Then
            Do
                Secs = Secs - 60
                Mins = Mins + 1
            Loop Until Secs < 60
        End If
        If Mins > 60 Then
            Do
                Mins = Mins - 60
                Hours = Hours + 1
            Loop Until Mins < 60
        End If
        If Hours > 24 Then
            Do
                Hours = Hours - 24
                Days = Days + 1
            Loop Until Hours < 24
        End If

and i don't think it's really efficient since this will be calculated every second.

in Secs, i have a huge number, which is the difference in time between today and some time after. i'd like to convert that into "dd Days hh Hours mm Minutes ss Seconds" without being as inefficient as what i have above. i could just format it as "dd:hh:mm:ss" but i'd like to have "Days Hours Minutes, and Seconds" though.