Unix epoch

thumb|240px|Mail in iPhone OS 3 displaying a Unix time error at the bottom (December 31, 1969).
The Unix epoch is the measurable range of time supported by Unix-based operating systems, such as Linux, and derivatives of Mac OS X (including iOS, iPadOS, macOS, and watchOS). The epoch on these systems begin at midnight on January 1, 1970.. 2004-06-10. An error in this time value can cause a system to report the date as December 31, 1969.
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==Date ranges==
The epoch of early 32-bit Unix-based systems and hardware (such as Mac OS X prior to 10.6, or Apple A6X and earlier) ends on January 19, 2038 at 03:14:07.The iPhone Apocalypse: January 19, 2038 by Ternary, MacRumors Forums. 2015-12-10.
Modern Unix-based systems and hardware (such as macOS since 10.6, the Apple A7 processor and later) have widened the time value to 64-bits, delaying this issue by billions of years.I just completed the 2038 experiment on a 64-bit iPhone! by Ternary, MacRumors Forums. 2016-04-19.
==References==
==External links==
* and at Wikipedia
Category:Terms
Category:Unix