How many days did Noah wait before sending the dove a second time?

Noah waited seven days before sending the dove a second time.

Genesis 8:10 says Noah waited another seven days before sending the dove again after its first unsuccessful flight. On this second release, the dove returned in the evening carrying a freshly plucked olive leaf, indicating that the waters had receded enough for vegetation to appear.

The sequence contains repeated seven-day intervals. Noah first sends the dove after the raven; after it returns, he waits seven days and sends it again. He then waits another seven days before releasing it a third time, after which it does not return.

This interval is distinct from the forty days mentioned elsewhere in the Flood narrative. Genesis uses several different time figures, including forty days of rain and the longer period during which the waters remained on the earth. The question concerns the interval between dove releases.