I want to research or information about perception of time. For my Science Fair project, I'm starting a timer and then asking people to stop me when they think a minute is done. I want to know some information about this topic, esp. what are the most important things that effect it. Thanks!

usually I don't tell someone how to do an entire project but here's some tricks

make sure you get a diverse spectrum of age groups, or specify the age group in the expirament (i.e. from 1-20, 20-50, 50-80, etc)
other than that, try googling perception of a minute