If it's like Groundhog Day, all the more reason to read it. Really, there are tons of stories you can tell with time loops, time travel, etc. it's not like you can patent the idea.
But it's not actually like Groundhog Day, if it's not the same day there's no way the main character can tune it to be a perfect day by trial-and-error, which is what Groundhog Day is all about really.
So the only similarity might be the dying and coming back to life part; which happens in Groundhog Day only because the main character becomes so despaired he commits a series of suicides. But this is only one of several side plots in Groundhog Day...
Your web page design takes some getting used to, it's not the 90s anymore
Can you make this available through other channels than Amazon, e.g. Smashwords? Or at least put some sample chapters on your webpage?