And on a per-character basis without addons by typing /played.
Unfortunately due to regular interruptions and the resultant afks during the more "sociable hours", then I have racked up a rather scary figure on my main, with the desire to work on alts something I just never get around to.
Due to EU maintenance being earlier than usual I am unable at present to check what it actually is.
It is at least in several hundred days.
I don't even want to know the exact amount of hours I've spent playing WoW, it's in the thousands at a minimum.
34000+ hours of WoW for me.
2000+ in FFXIV
500+ in Diablo 3
300+ in GW2
200+ in TERA
Countless hours in console RPGs.
Pokemon Silver was 120+ and Cardfiighters Clash was 80+ for examples.
Tikki tikki tembo, Usagi no Yojimbo, chari bari ruchi pip peri pembo!
I don't know... I suspect that the total count of my hours in Starcraft 2 would be approaching 4,000 by now. Better not know this number.
Total time I've spent on all computer games... I won't even try to estimate it. If I spent all this time, say, developing a business, I would be the richest man on Earth by now.