DateTime field validation

I'm trying to validate a dateTime field but I can't get it to work, is this not possible or am I doing something wrong?

PHP Code:

'myDateTime' => 'required|valid_date["Y-m-d H:i"]', 


Lose the double quotes in the square brackets.

Halberd | CodeIgniter Sandbox

Lose the double quotes in the square brackets.

Perfect, I missed the quotes during the various tests, thanks, it seems to work