The school project spanned over 9 weeks, but it was secondary as we were busy with full time classes and other more important projects / exams, so we mostly worked on it in the evenings or during vacation. I was personally extra-invested into it, so I tracked my hours of work during that time and have 200 hours on record.
After that, I took some extra time during summer vacation to add sound effects and implement some scrapped features, but I was very inconsistent and scattered in my work (+ didn't use a tracker) so I wouldn't know how to estimate the actual amount of time that took :>