#DefineFunction udfTimeDiff (strYmdHms1, strYmdHms2)
; Make valid datetime strings.
strYmdHms1 = TimeAdd ("0000:1:1", strYmdHms1)
strYmdHms2 = TimeAdd ("0000:1:1", strYmdHms2)
; Compare datetime strings.
If strYmdHms1 > strYmdhms2 Then Return TimeDiff (strYmdHms1, strYmdhms2)
Return TimeDiff (strYmdHms2, strYmdhms1)
#EndFunction

; Test.

strYmdHms1 = "0:0:0:0:5:32"
strYmdHms2 = "0:0:0:0:3:10"

strYmdHmsDiff1 = udfTimeDiff (strYmdHms1, strYmdHms2) ; "0000:00:00:00:02:22"
strYmdHmsDiff2 = udfTimeDiff (strYmdHms2, strYmdHms1) ; "0000:00:00:00:02:22"

Exit