So, you're a grad(uate) student. How is that different from being an undergraduate student (college student)?

Good question! The graduate student's day changes significantly depending on how far into a graduate program the student is. When you start graduate school, you must take some classes, but you generally devote significant amounts of time to research, as well. By the end of graduate school, you are just doing research. Research is your focus. While graduate students have a lot of time flexibility (who doesn't like sleeping in but running experiments at midnight?), they often don't have time for the clubs that are found everywhere during undergrad. Graduate students are also given many more responsibilities (laboratory keys, the ability to run their own experiments, design research plans, etc.). Since you don't have assignments with clear deadlines, work is very self-directed and you have to keep yourself on track. You are your own researcher. PhD comics sometimes makes you cringe with how true to life it is.