Detroit is typically 14 hours behind Tokyo. When it's 9:00 AM in Tokyo, it's 7:00 PM the previous evening in Detroit. Japan does not observe daylight saving time, but Detroit does.
During US daylight saving time (March to November), the difference is 13 hours. During US standard time (November to March), the difference increases to 14 hours.
Optimal meeting window: 7:00 PM - 10:00 PM Detroit time (8:00 AM - 11:00 AM Tokyo next day, or 9:00 AM - 12:00 PM in winter). Evening Detroit catches morning Tokyo.
Detroit's auto industry has crucial ties to Japan. Toyota, Honda, and Nissan all have major operations in the US, and Japanese companies are among the largest suppliers to Detroit's Big Three automakers.