As many here said, immediately and honestly. Next time make sure you either have enough information to base your estimate off, or way-way-way over-estimate. Sti

As many here said, immediately and honestly. Next time make sure you either have enough information to base your estimate off, or way-way-way over-estimate. Stick to your guns. If you finish early, fudge - make the estimate. This way you accomplish two things - you get the time you need and you are seen as reliable and accurate.