The Flood Chronology 1. In the 600th year of Noah (second month, tenth day), Noah entered the ark (Gen. 7:4, 10, 11). 2. In the 600th year of Noah (second month, seventeenth day), the flood began (Gen. 7:11). 3. The waters flooded the earth for 150 days (5 months of 30 days each), including the 40 days and 40 nights of rain (Gen. 7:12, 17, 24; 8:1). 4. In the 600th year of Noah (seventh month, seventh day), the waters began to recede (7:24; 8:1). 5. The waters later receded to the point that (600th