Houston is typically 11.5 hours behind Mumbai. When it's 9:30 PM in Mumbai, it's 10:00 AM the same day in Houston. India uses UTC+5:30, creating the half-hour offset. India does not observe daylight saving time, but Houston does.
During US daylight saving time (March to November), the difference is 10.5 hours. During US standard time (November to March), the difference increases to 11.5 hours.
Optimal meeting window: 7:00 AM - 9:00 AM Houston time (6:30 PM - 8:30 PM Mumbai, or 7:30 PM - 9:30 PM in winter). Morning Houston catches evening Mumbai.
Houston's energy and healthcare sectors have strong ties to India. Many Indian professionals work in Houston's medical center and oil and gas industry.