From the man page of ls:

-g like -l, but do not list owner

This would prevent the owner name from being listed. So what you intend to do is probably this:

ls --full-time -Gg

Also if you would like to see only a few desired columns, do ls -l and choose the columns using this:

ls -l | awk {'print $column_no'}

For example, if you only want the filename and size, do this:

ls -l | awk {'print $5" "$9'}

_Source:

• Formatting output of ls