Isnt that scary?

Someone PLEASE write this book. It sounds really interesting!

I would probably be the random idiot who when the clock changed would just run backwards from the direction I came from and hit a car

Wasn't it a movie like this kind of?

This reminds me of the movie in time.

Nicklebacks save a life video

There is a movie like this except time is used as currency and also your life length it's really interesting I'm sorry I don't remember the name

That would be fantastic for obesity, alcohol and smoking, I bet the numbers would dramatically plummet. Every time someone did something harmful and unhealthy to their body, their life span would decrease.

Believe you are looking for a watch called Tikker.

Lol

In Time

There actually is a watch that asks you a few questions (like are uad boy or girl, how old are u, do u smoke etc.) and it literally counts down till you die