Print a file's last modified date in Bash

I can't seem to find how to print out the date of a file. I'm so far able to print out all the files in a directory, but I need to print out the dates with it.

I know I need to attach a date format with the echo of the entry, but all I can't find the correct format.

echo "Please type in the directory you want all the files to be listed"

read directory 

for entry in "$directory"/*
do
  echo "$entry"
done

Solution

You can use the stat command

stat -c %y "$entry"

More info

%y   time of last modification, human-readable