1e9
By anders pearson 07 Sep 2001
the internal clock in unix which counts off the seconds since 00:00:00, Jan 1, 1970 will reach one billion (and thus 10 digits) at 21:46:40 on saturday night.
<p>if you have nothing better to do (i know i don’t) and want to have your own little countdown, just find your nearest unix box and run this from the command prompt:</p>
<p><tt>perl -le ‘sleep 1 while print 1e9-time’</tt></p>