echo 1300483666 | perl -lne '($j1,$j2,$hour,$mday,$mon,$year,$wday) = gmtime($_);$year = $year + 1900;$mon++;printf("%4s %.2d %.2d %.2d %.2d %6s\n",$year,$mon,$mday,$wday,$hour,1);'

2011 03 18 05 21      1