min. 3 hrs. max. 10.30hrs. for exp. 1.30hrs. to 7hrs. for pass. goods 1 hr. to 13hrs. (unlimited some time). OT only after completing 104 hrs. on every 14 days. even a loco pilot/asst. loco pilot worked continuously 20hrs. he may not get OT if he has not complete 104hrs. cumulative working hours. If late arrival is a chance to LP/ALP getting OT, no train will run in time. Before putting your reply confirm the matter with related person .