Hi, I'm Victor, and I will be glad to assist you today. When you log into your Facebook account on your device in both Facebook for HTC Sense and Facebook for Android it will not sync with your calendar. By signing in to Facebook for HTC Sense, your Facebook contacts and their contact details are downloaded to People, you can browse through Facebook photo albums in Photos, and read Facebook status updates in Friend Stream. There is no way to sync Facebook events to the calendar on your device. You could enter the events onto your Google calendar manually and then have your device sync with your Google calendar. If you have any other questions feel free to reply. You may also enjoy HTC Community - Join the HTC Mobile Phone Community Online, our customer-based forum, which has a plethora of information on HTC devices. I would also like to invite you to participate in a customer satisfaction survey located at HTC Online Survey. I hope you have a great day!
Ruben