Android Question Time difference

dim p as period = dateutils.PeriodBetween(starttime, endtime)
log(p)

Dim MyTime As Int =4
    Dim Starttime, Endtime As String
    Endtime =$"$2.0{0}:$2.0{MyTime}:$2.0{0}"$   '00:04:00
    Dim hours=0 As Int, minutes=3 As Int, seconds =31 As Int 
    Starttime = $"$2.0{hours}:$2.0{minutes}:$2.0{seconds}"$   '00:03:31
    Dim CurDate As String =DateTime.Date(DateTime.Now)
    Dim p As Period = DateUtils.PeriodBetween(DateTime.DateTimeParse(CurDate,Starttime), _
    DateTime.DateTimeParse(CurDate,Endtime) )
    Log($"${p.Hours} hrs ${p.Minutes} min ${p.Seconds} sec"$ )   'displays: 0 hrs 0 min 29 sec