AST to IST: Atlantic Time to India Standard Time

9 hours 30 minutes ahead of AST

IST compared with AST, right now. Swap: IST to AST ⇄

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AST to IST conversion table

For Tuesday, November 3, 2026. Rows where both places are inside 9 AM–5 PM are highlighted.

ASTIST
12:00 AM9:30 AM
1:00 AM10:30 AM
2:00 AM11:30 AM
3:00 AM12:30 PM
4:00 AM1:30 PM
5:00 AM2:30 PM
6:00 AM3:30 PM
7:00 AM4:30 PM
8:00 AM5:30 PM
9:00 AM6:30 PM
10:00 AM7:30 PM
11:00 AM8:30 PM
12:00 PM9:30 PM
1:00 PM10:30 PM
2:00 PM11:30 PM
3:00 PM12:30 AM (next day)
4:00 PM1:30 AM (next day)
5:00 PM2:30 AM (next day)
6:00 PM3:30 AM (next day)
7:00 PM4:30 AM (next day)
8:00 PM5:30 AM (next day)
9:00 PM6:30 AM (next day)
10:00 PM7:30 AM (next day)
11:00 PM8:30 AM (next day)

About these time zones

AST: Atlantic Standard Time

Atlantic Time (AST/ADT). Nova Scotia, New Brunswick and Prince Edward Island (with daylight saving), plus Puerto Rico and much of the Caribbean, which stay on AST (UTC−4) all year.

Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−4 → UTC−3).

IST: India Standard Time

India Standard Time (IST). All of India, including Mumbai, New Delhi, Bengaluru and Kolkata. IST is UTC+5:30 all year. IST can also mean Irish or Israel Standard Time; this page means India.

No clock change is scheduled; the offset stays the same all year.

Questions about AST and IST time

What is the time difference between AST and IST?

The current difference is shown at the top of this page. AST uses Atlantic Standard Time (AST, UTC−4) as standard time and Atlantic Daylight Time (ADT, UTC−3) during daylight saving time; IST uses India Standard Time (IST, UTC+5:30) all year. The difference can change if only one side observes daylight saving time or if their clocks change on different dates. Choose your meeting date in the converter to check the applicable offset.

When it is 9:00 AM in AST, what time is it in IST?

On Tuesday, November 3, 2026, 9:00 AM in AST was 6:30 PM in IST. The conversion table above shows today’s values.

Do the clocks change in AST or IST?

AST: Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−4 → UTC−3). IST does not change its clocks.

Is AST the same as ADT?

AST is the standard-time name and ADT the daylight-saving name for Atlantic Time. People often say AST all year; this converter uses the time actually in effect on the date you choose.

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