Washington, D.C. is 9.5 hours behind Hyderabad
Best overlap: 5:30 PM to 6:30 PM in Hyderabad is 8:00 AM to 9:00 AM in Washington, D.C..
Hyderabad and Washington, D.C. overlap from 5:30 PM to 6:30 PM (Hyderabad) to the equivalent 8:00 AM to 9:00 AM in Washington, D.C. — that's your meeting window. The shared window is only 1 hour — treat 5:30 PM in Hyderabad (8:00 AM in Washington, D.C.) as the one fixed point and plan everything else around it. The difference isn't constant year-round: Washington, D.C. adjusts for daylight saving while Hyderabad holds steady.