Here's an example (One Way) on how are we going to calculate the time difference between two give time:
C#
DateTime dFrom;
DateTime dTo;
string sDateFrom = "11:56:00";
string sDateTo = "12:12:00";
if (DateTime.TryParse(sDateFrom, out dFrom) && DateTime.TryParse(sDateTo, out dTo))
{
TimeSpan TS = dTo - dFrom;
int hour = TS.Hours;
int mins = TS.Minutes;
int secs = TS.Seconds;
string timeDiff = hour.ToString("00") + ":" + mins.ToString("00") + ":" + secs.ToString("00");
Response.Write(timeDiff); //output 16 mins in format 00:16:00
}
VB.NET
Dim dFrom As DateTime
Dim dTo As DateTime
Dim sDateFrom As String = "11:56:00"
Dim sDateTo As String = "12:12:00"
If DateTime.TryParse(sDateFrom, dFrom) AndAlso DateTime.TryParse(sDateTo, dTo) Then
Dim TS As TimeSpan = dTo - dFrom
Dim hour As Integer = TS.Hours
Dim mins As Integer = TS.Minutes
Dim secs As Integer = TS.Seconds
Dim timeDiff As String = ((hour.ToString("00") & ":") + mins.ToString("00") & ":") + secs.ToString("00")
Response.Write(timeDiff)'output 16 mins in format 00:16:00
End If