#! /bin/bash
tar -tZvf "$1" | grep -v /$ | \
    while [ 1 ] ; do
      read junk junk size date time name || exit
      size="               $size"
      echo "${size:$[${#size}-16]} ${date:0:4}${date:5:2}${date:8:2}${time:0:2}${time:3:2}   $1/$name"
    done