I think it only took a couple days, at most, to have a finished project. I was learning from a book for kids, so the projects were intended to be small and quick.
I think within a week I was knitting a new hand warmer every day until I wanted to try the next thing.
I never did finish my first scarf, even though I finished many after that one. It was blue and it was meant to be for one of my cousins, but it just took too long at that gauge to keep my attention after the first three feet.