King James Version
In the first month, on the fourteenth day of the month at even, ye shall eat unleavened bread, until the one and twentieth day of the month at even.English Standard Version
In the first month, from the fourteenth day of the month at evening, you shall eat unleavened bread until the twenty-first day of the month at evening.New International Version
In the first month you are to eat bread made without yeast, from the evening of the fourteenth day until the evening of the twenty-first day.