> 35F9.1
> Declare this reason to access the system boot time in order to measure the amount of time that has elapsed between events that occurred within the app or to perform calculations to enable timers.
> Information accessed for this reason, or any derived information, may not be sent off-device. There is an exception for information about the amount of time that has elapsed between events that occurred within the app, which may be sent off-device.
> 8FFB.1
> Declare this reason to access the system boot time to calculate absolute timestamps for events that occurred within your app, such as events related to the UIKit or AVFAudio frameworks.
> Absolute timestamps for events that occurred within your app may be sent off-device. System boot time accessed for this reason, or any other information derived from system boot time, may not be sent off-device.