iPhone time zone keeps altering to GMT or Cupertino time. The iPhone may ship worldwide, however, many units apparently wish to go back home to Cupertino. Several products are exhibiting a problem where the time zone setting persistently reverts to U.S. Off-shore Coast time or GMT.
Then, exactly what does Cupertino time zone mean?
Off-shore Time Zone
You can also ask, how do you get Cupertino off my weather application? Open the Weather application in your iPhone. Swipe left on Cupertino to get rid of it.