Perl 5 version 8.0 documentation
Returns the number of non-leap seconds since whatever time the system considers to be the epoch (that's 00:00:00, January 1, 1904 for Mac OS, and 00:00:00 UTC, January 1, 1970 for most other systems). Suitable for feeding to
For measuring time in better granularity than one second, you may use either the Time::HiRes module from CPAN, or if you have gettimeofday(2), you may be able to use the
syscallinterface of Perl, see perlfaq8 for details.