|Perl Language Reference Manual|
by Larry Wall and others
Paperback (6"x9"), 724 pages
RRP £29.95 ($39.95)
Sales of this book support The Perl Foundation! Get a printed copy>>>
Returns the number of non-leap seconds since whatever time the system
considers to be the epoch, suitable for feeding to
localtime. On most systems the epoch is 00:00:00 UTC, January 1, 1970;
a prominent exception being Mac OS Classic which uses 00:00:00, January 1,
1904 in the current local time zone for its epoch.
For measuring time in better granularity than one second,
you may use either the Time::HiRes module (from CPAN, and starting from
Perl 5.8 part of the standard distribution), or if you have
gettimeofday(2), you may be able to use the
syscall interface of Perl.
See "System Interaction" (perlfaq8) in the Perl FAQ for details.
For date and time processing look at the many related modules on CPAN. For a comprehensive date and time representation look at the DateTime module.
|ISBN 9781906966027||Perl Language Reference Manual||See the print edition|