According to experienced writers of my acquaintance, writing a free-form draft of a short story takes an hour and a half, on average.
I wrote for five hours. I took a tea break and a false-alarm break. The latter found me nervously checking for a wild animal just outside the screen door. (No, thank God! I couldn’t see it, but there was a raccoon growling at something. Raccoons have a distinctive sound.)
Anyway, I guess the time estimate fell short because the advisors are experienced both with writing drafts and meeting deadlines (several are published). So as with any writing advice, your mileage may vary.
I typed 2,435 words. However, that number includes asides like “Look up climate of coast.”
I woke up this morning with the realization that a character mentioned in passing is more important than the supporting character who was so enjoyable to write. So revisions will ensue.