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India and USA Time

Indian Standard Time and US Eastern side by side, with the live gap between them.

India and the United States sit almost half a world apart, and the exact gap depends on the season. IST to EST is 10 hours 30 minutes when the US is on standard time, and 9 hours 30 minutes when it is on daylight time — because India never shifts and the US does.

The four US zones from India

From IST, US Eastern is 10:30 behind in winter and 9:30 behind in summer; Central adds another hour, Mountain two, and Pacific three. So Pacific runs 13:30 behind IST in winter and 12:30 behind in summer. The full working is in IST to EST and PST.

Where the working day overlaps

The reliable window is early morning US Eastern against evening IST, or late evening IST against US morning. Teams that meet regularly usually rotate which side takes the awkward slot — see the best time to call India from the US and scheduling with teams in India.

Guides about India ↔ USA

Guides The Best Time to Call India From the US Practical calling windows between the United States and India, worked out for each American time zone in both the standard and daylight periods, with the slots to avoid. 6 min read Guides IST to EST and PST: The Exact Time Difference to the US The exact time difference from India to the United States in both the standard and daylight periods, with worked examples and the date-rollover mistake to watch for. 5 min read Guides Scheduling With India: A Guide for Distributed Teams How to run meetings and handovers with a team in India: fair rotation of unsociable slots, an asynchronous handover model, holiday planning and invitation etiquette. 6 min read

More indiatime.now pages

India Time Now The current time in India — Indian Standard Time, UTC+5:30, live. IST Converter Convert Indian Standard Time to any zone in the world, and back. India ↔ UK Indian Standard Time and London side by side, with the seasonal shift shown. India ↔ Gulf Indian Standard Time and Gulf Standard Time, one and a half hours apart. IST Offset Table How Indian Standard Time compares with the zones people ask about most.

Frequently asked questions

How many hours is India ahead of New York?
10 hours 30 minutes when New York is on Eastern Standard Time, and 9 hours 30 minutes when it is on Eastern Daylight Time.
Why does the difference change twice a year?
Because the US shifts for daylight saving and India does not. India's offset is fixed at UTC+05:30 all year.
What is a good meeting time?
Around 8 to 10 a.m. US Eastern lands in the Indian evening, roughly 6:30 to 8:30 p.m. IST, which is the least disruptive common window.