You'll be a little less than half as old if you pretend to be a Martian with their 687 Earth days per Martian year. Just don't go with Neptune, it takes almost

You'll be a little less than half as old if you pretend to be a Martian with their 687 Earth days per Martian year. Just don't go with Neptune, it takes almost 165 years before you turn 1 there.