Long-distance trains meet in Zürich on the hour and half-hour, and thus connect with each other. In cases of delays, connecting trains wait a maximum of 3 minutes beyond the scheduled departure time, except for some international trains and the late night trains. S-Bahn services do not wait for late connecting trains, but the long-distance trains - contrary to popular opinion - usually wait for delayed S-Bahn trains (also for a maximum of 3 minutes).