How long after Jonah preached to Nineveh did god destroy it?

According to the biblical account in the Book of Jonah, God did not destroy Nineveh after Jonah preached to them. Instead, the people of Nineveh repented, and God showed mercy by sparing the city. There is no specific timeline given for the destruction of Nineveh in relation to Jonah's preaching, but historical records indicate that Nineveh was eventually destroyed in 612 BCE, long after Jonah's time.