I'm missing a lot of hours in some games. I'm pretty sure I have more hours in TF2 than what it shows, and I unquestionably have much more than 40 hours in Day of Defeat Source.
PyrokanetisI think the best way to get actual hours for TF2 is to count up the class hours. Or, after clicking view stats on the steam profile, the upper right hand corner will display "on record" hours underneath hours from the past 2 weeks.There also seems to be thing of time spent in what I assume to be spectator, beneath the classes I have never seen until now.
Class hours strictly record you actually being alive as that class.