- COPYRIGHT AND LICENSE
- SEE ALSO
Time::FFI - libffi interface to POSIX date and time functions
use Time::FFI qw(localtime mktime strptime strftime); my $tm = strptime '1995-01-02 13:15:39', '%Y-%m-%d %H:%M:%S'; my $epoch = mktime $tm; print "$epoch: ", strftime('%I:%M:%S %p on %B %e, %Y', $tm); my $tm = localtime time; my $datetime = $tm->to_object('DateTime', 1); my $tm = gmtime time; my $moment = $tm->to_object('Time::Moment', 0); use Time::FFI::tm; my $tm = Time::FFI::tm->from_object(DateTime->now); my $epoch = $tm->epoch(1); my $piece = $tm->to_object('Time::Piece', 1);
Time::FFI provides a libffi interface to POSIX date and time functions found in time.h.
The "gmtime" and "localtime" functions behave very differently from the core functions of the same name, as well as those exported by Time::Piece, so you may wish to call them as e.g.
Time::FFI::gmtime rather than importing them.
All functions will throw an exception in the event of an error. For functions other than "strftime" and "strptime", this exception will contain the syscall error message, and "$!" in perlvar will also have been set by the syscall, so you could check it after trapping the exception for finer exception handling.
All functions are exported individually, or with the
:all export tag.
my $str = asctime $tm;
my $str = ctime $epoch; my $str = ctime;
Returns a string in the format
Wed Jun 30 21:49:08 1993\n representing the passed epoch timestamp (defaulting to the current time) in the local time zone. This is equivalent to "ctime" in POSIX but uses the thread-safe ctime_r(3) function if available.
my $tm = gmtime $epoch; my $tm = gmtime;
my $tm = localtime $epoch; my $tm = localtime;
my $epoch = mktime $tm;
Returns the epoch timestamp representing the passed Time::FFI::tm record interpreted in the local time zone. The time is interpreted from the
isdst members of the record, ignoring the rest. DST status will be automatically determined if
isdst is a negative value. The record will also be updated to normalize any out-of-range values and populate the
yday values, as well as
zone if supported.
my $str = strftime $format, $tm;
my $tm = strptime $str, $format; $tm = strptime $str, $format, $tm; my $tm = strptime $str, $format, undef, \my $remaining; $tm = strptime $str, $format, $tm, \my $remaining;
Returns a Time::FFI::tm record representing the passed string, parsed according to the passed format. Consult your system's strptime(3) manual for available format descriptors. The
isdst value will be set to -1; all other unspecified values will default to 0. Note that the default
mday value of 0 is outside of the standard range [1,31] and may cause an error or be interpreted as the last day of the previous month.
A Time::FFI::tm record may be passed as the third argument, in which case it will be modified in place to (on most systems) update only the date/time elements which were parsed from the string. Additionally, an optional scalar reference may be passed as the fourth argument, in which case it will be set to the remaining unprocessed characters of the input string if any.
This function is usually not available on Windows.
my $epoch = timegm $tm;
Since version 1.002
my $epoch = timelocal $tm;
Since version 1.002
The same as "mktime", but not always available.
Report any issues on the public bugtracker.
Dan Book <firstname.lastname@example.org>
This software is Copyright (c) 2019 by Dan Book.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)