🕒 IST ⇄ US Time Zone Converter & World Clock

How Many Hours Ahead Is India of the US?

India Standard Time (IST) sits at UTC+5:30 all year round, since India does not observe daylight saving time. The US, on the other hand, shifts its clocks twice a year, so the gap between India and each US time zone actually changes slightly between winter and summer. Here is the reference most people are looking for when they search things like "IST to EST" or "India US time difference":

The live calculator above always shows today's exact, correct difference automatically — you never have to remember whether the US is currently on standard or daylight time.

Why Time Zone Differences Feel So Confusing

Two things make IST-to-US conversion trickier than most time zone pairs. First, India's offset includes an extra 30 minutes (UTC+5:30) rather than a clean hour, so the gap is never a round number. Second, the US observes daylight saving time for roughly eight months of the year, shifting every US zone forward by an hour and changing the gap with India in the process. This calculator uses your browser's built-in time zone database to account for both quirks automatically, so the numbers are always correct for today's date — not just a rough estimate.

How to Use This Time Zone Converter

1. Check the World Clock card at the top for the current time in India and your chosen US zone, updating live every second.
2. Use the dropdown next to the US clock to switch between Eastern, Central, Mountain and Pacific time.
3. Scroll through the grid of other major countries to see the time anywhere else in the world right now.
4. To plan a meeting or call at a specific time, use the Convert Any Date & Time card: pick a date, a time, and the "from" and "to" zones, then press Convert.
5. The results table below the converter shows that exact moment across every major zone at a glance.

This Converter vs a Typical Time Zone Website

Who Uses a Time Zone Converter?

This tool is built for anyone juggling more than one clock: remote teams and freelancers scheduling calls between India and the US, students applying to or studying at universities abroad, families and friends keeping in touch across countries, travellers planning flights and layovers, and traders and investors who need to know when US markets open relative to Indian time.

Frequently Asked Questions