debian man page for uuid_time

UUID_TIME(3)							    Libuuid API 						      UUID_TIME(3)

NAME
       uuid_time - extract the time at which the UUID was created

SYNOPSIS
       #include <uuid/uuid.h>

       time_t uuid_time(uuid_t uu, struct timeval *ret_tv)

DESCRIPTION
       The  uuid_time  function  extracts the time at which the supplied time-based UUID uu was created.  Note that the UUID creation time is only
       encoded within certain types of UUIDs.  This function can only reasonably expect to extract the creation time for UUIDs	created  with  the
       uuid_generate_time(3) and uuid_generate_time_safe(3) functions.	It may or may not work with UUIDs created by other mechanisms.

RETURN VALUES
       The time at which the UUID was created, in seconds since January 1, 1970 GMT (the epoch), is returned (see time(2)).  The time at which the
       UUID was created, in seconds and microseconds since the epoch, is also stored in the location pointed to by ret_tv (see gettimeofday(2)).

AUTHOR
       Theodore Y. Ts'o

AVAILABILITY
       libuuid is part of the util-linux package since version 2.15.1 and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

SEE ALSO
       uuid(3), uuid_clear(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_is_null(3), uuid_parse(3), uuid_unparse(3)

util-linux							     May 2009							      UUID_TIME(3)