Okay
  Print

When I open the individual post, the date turns into JAN.01. How to solve?

Local settings of your server is not English, in this case we need to get the date in a different format, without the names of the months.

So, it needs to change line 66 in the single.php:

set

$post_date = get_the_date('Y-m-d H:i:s');

http://screencast.com/t/NzvPBzxnJy