Time to me does exist in the fact that it is something our entire species adheres to and lives by, cosmically though I would have to say no time doesn't exist. Time is a notion made by man in order to measure length (in essence), it is also a perception (time flies when you are having fun). Speaking cosmically time to me should be known as cycles. I do believe that cycles exist both here on the planet and cosmically (not speaking necessarily of seasons). I don't understand how this has anything to do with coronal mass ejections however?