Perhaps you are enlightened by Chronos or maybe just a lazy bastard, but, to most people, time is always missing to do all things. Moreover, if, and only if, you like playing games, it is very likely that you need to develop techniques to balance time between your obligations as a “big boy/girl/alien” and your time to play.
HowLongToBeat.com is a website of collaborative content with a database of games and how many hours it takes to beat them! Interesting, non?
They even had the gentle touch to separate the time it would take to complete only the main story, the main story and some extra things, and the time it would take to complete the *all of everything*.
Below you will find some examples of the short version of data to some games (to all games they have a complete page with more details if needed), and if you feel like knowing the website yourself, just click here.