Schools are removing analogue clocks from examination halls because teenagers are unable to tell the time, a head teachers’ union has said. Teachers are now installing digital devices after pupils sitting their GCSE and A-level exams complained that they were struggling to read the correct time on an analogue clock. Malcolm Trobe, deputy general secretary at the Association of School and College Leaders (ASCL), said youngsters have become accustomed to using digital devices. “The current generation aren’t as good at reading the traditional clock face as older generations,” he told The Telegraph.