Since I installed iOS 9, clock accuracy has diminished by a factor of more than 3000. During the lifetime of iOS 8, clock accuracy improved by a factor of a hundred, going from one or two seconds off to ten milliseconds off. Now, with iOS 9 and 9.0.1, the clock continuously drifts from the correct time, potentially reaching a difference of minutes. The only treatment I've found is restoring the device from a backup, during which the device apparently finally syncs the clock—but that is hardly practical. This can cause problems with all sorts of activities, like two-factor authentication systems, remote control of machinery, etc. It amazes me that nobody tested something so basic.
09-26-2015 06:07 AM