Time seems to be very fast from my perspective, typically. I think this happens for a number of reasons:
- We get into certain routines and much of what we are doing becomes almost automatic, and we don't experience the present moment with as much awareness as if it were a unique experience to remember. A lot of chores and essential things we have to do routinely can feel like empty time, so to speak.
- Distractions to occupy our time. Internet, phones, television, etc... all distracting and easy to get caught up in, so time seems to pass more quickly. Easy to forget about what time it is or how much time is passing.
- I think there is also an illusion when one looks back on something in the past to compare the passage of time to the present. If you're not doing something really strenuous or that takes an extreme level of focus it's quite easy to forget much of the experience. Yet if someone asked you to go do extremely difficult labor for an hour that you have to concentrate on, time would probably seem to slow down quite a bit for that hour. Also, because certain memories can remain so vivid and fresh in our mind of a certain point in time, it's easy to look back on that moment as if it just happened thus making it seem like time passed by very quickly as well.
I think all of those factors can contribute toward our perception of how fast time is passing.