You should install CityMapper: it is a very smart app that supports public transit in major cities, integrates with Uber/Lyft, bike sharing programs, etc, and even knows how to combine rides (e.g. plan most efficient ride that is part subway, part Uber, etc). I never check timetables for public transit, as the app shows GPS-sourced arrival times for buses in its route planner. Plus it can send a tracking link to your friends so they know when you'll arrive.