Houston is 8 hours behind Doha
Best overlap: 4:00 PM to 6:00 PM in Doha is 8:00 AM to 10:00 AM in Houston.
The overlap falls at 4:00 PM to 6:00 PM in Doha, or 8:00 AM to 10:00 AM if you're in Houston. Just 2 hours of shared hours means there's little margin — set 4:00 PM in Doha (8:00 AM in Houston) and start promptly. Because only Houston changes its clocks, the overlap above isn't fixed; expect a one-hour shift when Houston enters or leaves daylight saving.