Mecece tambaya ga: "Misali, a cikin kalandar Gregorian (kalandar hasken rana ta yau da kullun), Fabrairu a cikin shekara mai tsalle yana da kwanaki 29 maimakon 28 na yau da kullun, don haka shekara tana da kwanaki 366 maimakon 365 na yau da kullun"? Batun shi ne Shekarar Leap.
"Kwana nawa ne a shekara mai tsalle?"