Genesis 8:5

5. Waters decreased Hebrews, the waters were going and decreasing (steadily decreasing) until the tenth month . The waters slowly settled for two months and thirteen days after the ark rested, until, on the first day of the tenth month, (of the six hundredth year of Noah’s life,) the mountain tops were seen . The various epochs of the narrative are given in the years, months, and days of the life of Noah . It commenced (Genesis 7:11) in his six hundredth year, second month, and seventeenth day, and ended (Genesis 8:13) in his six hundred and first year, first month, and first day .