END OF TIMES, 1200000000

END OF TIMES IS COMING! ON 1200000000TH SECOND OF UNIX TIME GOD WILL DESCEND FROM HEAVENS AND ALL WHO IS EVIL WILL PERISH!
Kind GNU/Linux users should use
while ( true ) ; do let a="1200000000-$(date +%s)"; echo $a ; sleep 0.5 ; done

>>4

The second zero is for confirmation