Lucky Penny Day is celebrated on May 23. 2018. It also could be your lucky day if you find a lucky penny on the ground, like this proverb tells you: "See a penny, pick it up. All day long you'll have good luck." If you are superstitious be careful to only pick up pennies lying face up. Well whether you believe it or not that you'll be lucky all day, but you already had to be lucky to find that little penny on the ground after all. And since there is nothing to lose just go out and try your luck.