Exodus 12:18

In the first month, on the fourteenth day of the month, toward evening, you shall consume the unleavened bread, until the twenty-first day of the same month, toward evening

Other versions

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.