Type Alias


Type used to represent a specific point in time relative to the absolute reference date of 1 Jan 2001 00:00:00 GMT.


typealias CFAbsoluteTime = CFTimeInterval


Absolute time is measured by the number of seconds between the reference date and the specified date. Negative values indicate dates/times before the reference date. Positive values indicate dates/times after the reference date.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software