NAME Time::TAI::Now - determine current time in TAI DESCRIPTION This module is one answer to the question "what time is it?". It determines the current time on the TAI scale, and puts a bound on how inaccurate it could be. It is designed to interoperate with Time::TAI, which knows all about the TAI time scale. TAI (International Atomic Time) is a time scale produced by an ensemble of atomic clocks around Terra. It attempts to tick at the rate of proper time on the Terran geoid (i.e., at sea level). It is the frequency standard underlying Coordinated Universal Time (UTC). TAI is not connected to planetary rotation, and so has no inherent concept of a "day" or of "time of day". (There is nevertheless a convention for how to represent TAI times using day-based notations, for which see Time::TAI.) This module represents instants on the TAI time scale as a scalar number of TAI seconds since its epoch, which was at 1958-01-01T00:00:00.0 UT2 as calculated by the United States Naval Observatory. This matches the convention used by "Time::TAI". INSTALLATION perl Build.PL ./Build ./Build test ./Build install AUTHOR Andrew Main (Zefram) COPYRIGHT Copyright (C) 2006, 2009 Andrew Main (Zefram) LICENSE This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.