Most Time Spent on a Game

World of Warcraft fever, 2nd year of highscool (from where I almost got expelled cause of wow -among other classes I even had to take final exam in gym class in July)
It was around a decade ago, so I dont really recall exact numbers, but it was really a lot.
Had over 400 school classes missed that year - all pardoned by my freakin saint class elder.
I was an addict man, 12+, 16+ hours online per day was nothing.

Then, school ended and summer started - thats when i cut the ropes, said no more, and really that was it, left my lvl 70 T5 equipped rogue in the mud.
I remember I almost crapped my pants after seeing how many hours I've spent online in few months period, dont remember the numbers, probably because my subconscious blocked it in meanwhile.