At 9.00 am, the 'Titas Express' left the station heading South. Two hours later, the train 'Surma Express' left the same station on a parallel track in the same direction. Titas's speed averaged 60 kmp for the first hour and then averaged speed 50 kmp for the rest of the trip. Meanwhile, Surma's speed averaged 75 kmp throughout trip. At what time did Surma pass Titas?