According to Genesis, on what day of the month did Noah enter the Ark before the Flood?

According to Genesis, Noah entered the Ark before the Flood on the 17th day of the second month.

Genesis 7:11–13 provides the date and then describes Noah, his family, and the animals entering the Ark. The passage presents the event within a numbered calendar, although identifying that calendar with a later historical system is not straightforward.

The date is part of a detailed chronology in Genesis. The rain begins on the same day, and the narrative later marks other stages with dates, including the Ark’s resting on the mountains of Ararat and the eventual removal of the covering. These chronological notices help structure the story rather than offering a modern calendar date.

Readers sometimes remember the 17th day as the date the Ark came to rest, but Genesis gives that event a different month and year. The entry and the later resting are separate milestones in the narrative.