From this site, I learned about the "secret" file that stores my gps info.
I tried to open the file, and I got this SQLite DB.
How can I interpret the timestamp info?
iOS (and Mac OS X) use the NSDate epoch, which means that time is recorded as the number of seconds since the first instant of 1-Jan-2001 UTC. The more common Unix epoch is based on 1970 instead. The difference between the two is
which converts the Date to the local time zone and format, and displays it with an
run the following query
Also you could head to epochconverter to search manually