According to Genesis, on what date did Noah and his family enter the Ark before the flood?

According to Genesis, Noah and his family entered the Ark on the seventeenth day of the second month.

Genesis 7:11–13 gives the date in its flood chronology. It says the flood began in Noah’s six hundredth year, in the second month, on the seventeenth day of the month, and that Noah, his family, and the animals entered the Ark on that day. The passage also associates the beginning of the flood with the bursting of the great deep and the opening of the heavens.

This date is separate from the later milestones in the account, including the Ark coming to rest and the earth becoming dry. Readers often remember the flood story as a sequence without dates, but Genesis includes several chronological markers.

The wording reflects an ancient calendar system, so converting it into a modern Gregorian date is not possible without additional assumptions. The precise biblical answer is therefore the seventeenth day of the second month.