The Tokyo metropolitan government is considering proposing that the 2020 Olympic marathons and race walking events start at 5 a.m. in an attempt to prevent them from being moved to Sapporo, officials familiar with the matter said Thursday.It is also exploring the possibility of setting the start times at 3 a.m. but is leaning toward 5 a.m., around the time the sun rises in early August in the capital, as part of efforts to counter the International Olympic Committee's plan to hold the races in the city on Japan's northern main island of Hokkaido, the officials said.Amid increasing worry abo…READ FULL ARTICLE