International Standard Version because just as Jonah was in the stomach of the sea creature for three days and three nights, so the Son of Man will be in the heart of the earth for three days and three nights.
American Standard Version for as Jonah was three days and three nights in the belly of the whale; so shall the Son of man be three days and three nights in the heart of the earth.
Young's Literal Translation for, as Jonah was in the belly of the fish three days and three nights, so shall the Son of Man be in the heart of the earth three days and three nights.