context: The operation was to consist of two parts: operations "Olympic" (Olympic) and "Coronet" (Coronet). During Operation Olympic, scheduled to begin on October 1945, using the recently occupied Okinawa as a bridgehead, the southern third of one of the main Japanese islands, Kyushu, was to be captured. Later, in the spring of 1946, on the Kanto Plain, Honshu Island, surrounding Tokyo, an operation supported by Kyushu aircraft was to land during Operation Coronet.
question: When was the start of Operation Downfall planned?
answers.text: October 1945