about 2 hours...i think...lets see i took her boyfriend out shopping fo rhere birthday, then dropped him off at 5, went to the fabric store and then came home and i think that took an hour..home at like 6 6:30. then i think i ate something or made tea....started working on it at 7 and went and picked her up to go to a gallery opening at 9.
so yeah 2 hours or so. if you dont count shopping for the materials.