Dired: configure displayed file/folder details

[Will]

Hi,

how can I tell Emacs *what* and *how* it shall display file/folder 
details in Dired?

For example, I'd like to display the complete date and time information 
for each file, not depending on the date/time of the file. At the 
moment, Dired drops the time if the file is older. Further, I'd like to 
switch off the display of user rights or file owners/groups.

Thanks for helping in advance,

Will