I haven't been able to figure out exactly why yet, but I have a feeling it has something to do with the Profile structure (it looks like the client doesn't send an OpCode to the server for the info). Anyways, when you type /played in-game, "Total time playing" shows how much you have played that session. "This session" is really high, possibly related to the actual time + something else? "total time entitled" also doesn't seem to show anything other than 0.0.
One thing I did notice is it doesn't look like timePlayedMin in the PlayerProfile struct isn't changing from 0.
I know it's not the end of the world, but it would be nice to be able to see how long you've been playing a character