I dont get to work on my mine as much as I'd like but I normally work with the real thin weight - the one below sport weight (I think) and it takes me about a week to do one sock - but I'm limited on my knitting time. About 1 hr a night (2 if I'm luck) - the most I get done is when we go out to eat - I knit while we're waiting to be seated, waiting on the waitor, waiting for the food, and waiting for everyone to finish their food. You can get alot done then.
Dont just yourself on how long it took everyone else - you may pick right up on it and fly. Plus, if you have small feet, you dont have to make them as long.
I'm working on a pair now that have a cabled pattern in them so these are really taking me awhile. I'll love them even more when I'm finished!