For those who use Google Calendar here is a convenient extension of Google Chrome that lets you quickly add any Facebook event to your Google Calendar™ with the click of a link. No more copy paste and typing.
The extension is called Facebook Add Events to Google Calendar and it’s simple to use, just install it ( link ) and go to an event on Facebook. You will notice a new link added by the extension that will copy the event into your Google Calendar.
The extension copies the event name, dates and times, location, event description, and also inserts a link to the event page.