What comes once in a minute, twice in a moment but never in a thousand years?

The letter M.

More dad jokes you'll groan at

What did the shovel say to the sand? "I really dig you!"Do u know why Grandparents and grandchildren get along so well? A common enemy.Why are there barcodes printed on the sides of Norway's Navy ships? So when they come in to port the can Scandinavian 🚢Why was the Incredible Hulk so good at gardening? He had a green thumb.What is a computer's favorite food? Microchips What do you call a French man wearing sandals? Philipe Fallop.