Global timekeeping is set for a major shift as the leap second will be discontinued. In the future, clocks will require adjustments of one hour every few thousand years, a far less frequent intervention. The leap second, a mechanism to keep atomic time synchronized with the Earth’s rotation, was largely unknown to the public. Its abolition comes as atomic clocks demonstrate superior accuracy. This change indicates a move towards reliance on highly precise atomic time standards. While the leap second has an interesting history, maintaining it proved increasingly complex and disruptive to technological systems. The decision streamlines international time regulation.