To me this seems like the perception of time is more based on uniqueness of experiences. When you're young everything was new and therefore was interesting and mattered more. When you're older you slip into a routine and days begin to blur by.

Maybe it's just because of the pandemic, but if I look at the last 6 months of my life right now I don't really remember too much. Mainly sitting at my desk and programming. Then one time my parents came to visit. Comparing that to the average month of college, of course I would perceive that time as longer as longer than my recent 6 months.