By law, the first exit polls released on election day come out at 10 p.m. local time. This will give us the first indication of where the parties stand. But these exit polls come with a disclaimer: sometimes, they are remarkably prescient; other times, they are woefully wide of the mark.
Final results can take a few days, as ballot boxes are checked, and votes come in from Israelis overseas.
But the results should be obvious long before that, and it is usually fairly clear by sunrise the following day what shape possible coalition negotiations could take.
Officially, it’s up to Israel’s president to decide who is tasked with forming the next government. He announces his decision after consulting with the heads of the political parties that have secured enough votes to enter the Knesset. These consultations take a few days, and the President is likely to announce his decision about a week after the elections.
From that point, the party leader appointed to the task has six weeks to form a government.