Open File Manager
Click 'View' on menu bar
Select 'List View'
Then Click 'View' again and 'Configure Columns'
Tick the items you want to appear - specifically 'Date Modified'.
Close the 'Configure Columns' window
Click 'Edit'
Click 'Preferences'
At the bottom of the 'Display' tab
Chose the 'Date' format which suits you.
Close the File Manager Preferences window.
I've not found a way to get the GUI to display create time in a folder view.
Apparently file create time will be an option in Thunar version 4.17 though there may be some limitations.
Edit - added reference to 4.17