The desktop Google Maps got a Material Design update: the timetable for transit directions is now displayed in an overlay. Just click More options and times next to Google's transit directions to see the new interface. Here's an example.
"If you're taking public transit, you'll see details about the transit line, trip duration, and schedule. To see other public transit times and enter a specific time, click More options and times. From here, you can see key information: overall travel time for your route, time spent walking (dotted lines), time spent on transit (solid lines), transportation lines used. To see the next scheduled departure, click Leave now. Or choose a different time and date for your directions in the boxes at the top. Click on a trip to select it and see it on the map. Click Route options to narrow your directions down to a particular type of transit. You can also choose Fewer transfers and Less walking," informs Google.
{ Thanks, Emanuele Bartolomucci and Jérôme Flipo. }