Information Technology Reference
In-Depth Information
Mac absolute time
iOS devices adopted the use of
Mac absolute time
with iOS 5 for most of the data. Mac
absolute time is the number of seconds that offsets the Mac epoch time, which starts on
January 1, 2001. The difference between the Unix epoch time and the Mac epoch time is
exactly 978,307,200 seconds. To convert the Unix epoch time to Mac absolute time, add
978,307,200 to it and calculate it as a Unix timestamp. For example, the
date
command
can be used to covert Mac absolute time is shown as follows:
$date -r `echo '389894124 + 978307200'| bc`
Fri May 10 21:25:24 IST 2013
Online converters prove to be useful to convert both Mac epoch and Unix timestamps for
iOS devices.
