Houston is typically 15 hours behind Tokyo. When it's 10:00 PM in Tokyo, it's 7:00 AM in Houston. Japan does not observe daylight saving time, but Houston does.
During US daylight saving time (March to November), the difference is 14 hours. During US standard time (November to March), the difference increases to 15 hours.
Optimal meeting window: 6:00 AM - 8:00 AM Houston time (8:00 PM - 10:00 PM Tokyo, or 9:00 PM - 11:00 PM in winter). Early morning Houston catches evening Tokyo.
Houston's energy sector has significant ties to Japanese trading companies and LNG importers, requiring regular coordination.