You don't need to follow it and it is irrelevant to you, until time runs out. Your time begins, and your time ends, the labels applied to 'time' in between those points, if 'time' exists, bear little relevance to your life. You can only run out of time once, we shouldn't spend all of our time worrying about running out of time; we never know when it will run out, but the chances are it won't be soon.
We live in the moment. We cannot live in the past for we can never turn time back. We can never live in the future for by the time tomorrow arrives, it is today. Before you can think to step into a future moment it is here and past into the past.
I will say this: I've NEVER had a clock in my bedroom. I'm a huge James Dean fan, (my mom says I was born in the wrong generation), and for my birthday one year, she bought my a clock with James Dean's face on it, thinking I would finally set one up.
It sits beside my TV, without batteries, constantly showing twelve o'clock.
As far as I understand it we know very little about time, we have a concept of it but our understanding of time as a straight line from an infinate past to an infinate future is just a way of reconciling our place in the here and now. I expect that this is a bit like flat earth theory - when we get a better grip on it we will wonder how we could have been so dim as to see time the way we do.
Mathematics is closely related and most of our 'modern' ideas of time come from maths as far as I can see - with number planes and number shapes, and from this sprang the ideas of parallel universes (in time) and alternate realities. We have to wait for the clever people to show us I guess.
If time travel were possible, would it be illegal?Would countries, sanction or possibly ban the use of time travel? Would they just tax it? The implications of being able to change something in the past could be...