I have a theory that its because we are getting older, if you are a 5 year old child and you have to wait a whole year for your next birthday, then its a whole 20% of your life spent waiting.
If you are 50 then you only spend 2% of your life waiting for the next one to rush around, so in answer to your question, yes it seems like time is flying past!!!
When you get to Fossils age the days must seem like hours!!! ;D ;D
I know I have difficulty remembering what I did yesterday let alone what I did for my birthday last year!!