I accidentally left a Bubbles quest open last night without completing it and when I visited the site today it's now counting against this day's totals.

Is this normal behavior? I don't quest often, but I thought that they were supposed to reset at midnight, subeta time, regardless of when you came back to the page.

Well it depends on when you started it. On average quests are 30 minutes. If you started it at 11:39, left the page and let the 30 minutes run out, the quest would have ended at 12:09, making it count today.

Actually, unlike what said above, I've had this occur regardless of when I started it. If you let a quest expire but only check up on it the next day (or, hell, three months later) then yeah, it will count against your total for that day. Whether this is intended or not, I don't know. (I think quests should be counted up the moment you start them, imo...)

Yeah, if you don't check to see that the quest was over then it doesn't really count. It's only over once you check on it so it can tell you it's over.