[biot]

When you're young, every day is a new experience. Your brain timestamps these experiences and you can see a lot of activity in a given period of time. As you get older, you end up doing a lot of routine things and there are relatively fewer new experiences. As you look over a given period of time, you see a lot less activity. This is what I've come to believe is the basis for the universal phenomenon of the perception of accelerated time.

The solution is to break your routine. For me, the subjectively slowest passing of time is when I'm doing a lot of new stuff and haven't formed a routine around it. But if you're working a 9 to 5 kind of job you end up doing the same shit every day and every week and every month. Pretty soon you take notice and discover that another year has gone by. So do your best to avoid routine. Or if that's not practical (hey, we all need to make a living) then fill your non-work hours with new experiences and new learnings. Now that's some advice I need to take myself...