Time (the beginning)

I feel like I've been beating around the bush a little bit with this subject. I love things that are related to time. Time travel, time machines, wristwatches, wall clocks, sundial, and of course Tom Baker (if you don't know what/who that is, look it up). But I approach the topic of time with much precaution. I've been wanting to write one for as long as I've been writing these, but never known where or how to start. If I were to do several different posts on time, which aspect should I choose first amongst a plethora of concepts. So I thought I'd waste your time, say that I'm going to start talking about time, say nothing at all that really amounts to anything, and then hope I don't lose my pen and paper.