According to several Reddit users, the reminder functionality of Google Now is currently broken. The app sets the reminder successfully, but the reminder popup doesn’t fire off at the set time as it should.
How to manage your Google location history – Android customization
If you're running the Chrome OS beta channel on your Chromebook, and new change is making its way to your device. The new feature is called Chrome Launcher 2.0, and it brings a new Google Now-centric interface and some performance improvements.