Google Maps has seen a lot of UI changes recently that some of us may consider superfluous, or at least not a high priority. But over the past few days, two really important features popped up in the app — speed trap cameras and speed limits while driving — and now there's a third addition. When you're retrieving driving directions, you can - finally - set your departure or arrival time and get an estimation of how long your route will take, via the route options menu.

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