How to add time more than a day

Hi all,

I had a timespan ts and I had  a string strB represented by "hh:mm:ss".

since I am in a loop, strB will eventually add up to more than 24 hours.

I had an example (strB = "1.00:11:52")

I am not sure how to handle add hours more than 24 hours. Can someone please help?

Thanks

ts2 = Convert.ToDateTime(strB).TimeOfDay.Add(Convert.ToDateTime(dtime).TimeOfDay);
foreach (string dtime in List)
{
if (dtime == "") Go to the complete details ...