how to add two timespan object in c#

Question

I have certain working hours of employee,adding all rows  i am getting this

 

Total  time = 194:32:40 

 

Now i want to add Timespan ts=new Timespan(8:00:00)

                              Timespan ts1=new Timespan(194:32:40)

                              ts1.add(ts);

 

but it throws invalid time error due to 194:32:40,what i have to add to add certain time to total time in c#.