Click here to switch the language to "English (UK)" - that should fix the dates around for you for this login.

To make it permanent, go to your "UserCP" and then into "Edit Options".

Scroll down till you get to Miscellaneous Options. In there you should find the "Forum Language" area. Change the language from "English (US)" to "English (UK)" and save your changes.

Now this setting will be locked and "English (UK)" will be used as the language whenever and wherever you login.