For example, Google Now uses the time of day, your location, and your location history to show you what the traffice on your com- mute is like when you wake up in the morning. It also uses infor- mation from Google services such as your Web History for sports or flight status cards, or from your synced calendar entries for appointment cards.
About location reporting & history
When you
If you opted in to location history in the past, Google Now uses your previously recorded locations as well as ongoing locations when making suggestions. Turning off location history pauses the collection of location information, but doesn’t delete your his- tory. To manage or delete your location details, visit https://www. google.com/latitude/b/0/history/dashboard.
Google Now doesn’t turn on sharing with friends. Your location is not shared unless you explicitly opt in to sharing from Google Maps settings.
Along with location history, Google Now uses Google’s location service and GPS. Google’s location service must be turned on for Google Now to work. To manage this setting, go to 
Settings >
personal > Location services.
For more details, see “Control location reporting & history” on page 32.
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