Convert IST to UTC

India time to UTC.

Date
Clock

In UTC (Coordinated Universal Time)

3:30 AM

Tue, 13 Oct 2026

India (IST)
9:00 AM, Tue, 13 Oct 2026 (IST, UTC+5:30)
UTC (Coordinated Universal Time)
3:30 AM, Tue, 13 Oct 2026 (UTC, UTC+0)
Difference
UTC is 5 h 30 min behind Kolkata

India to UTC, hour by hour

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

Clock changes in 2026

PlaceDateClocks change
IndiaNoneStays on UTC+5:30 all year
UTCNoneStays on UTC+0 all year

Daylight saving time is applied automatically for the date you pick.

Runs in your browser. Nothing uploaded.

How to convert India time to UTC

  1. Type the time in India and pick the date in India.
  2. From is India (IST) and To is UTC. Use the 24-hour clock if you’re filling in a cron job or a config file.
  3. Read the UTC time. Anything before 5:30 am in India is still the previous day in UTC.

India time to UTC table

The same on every date of the year.

India (IST) UTC
12:00 am 6:30 pm (18:30, previous day)
3:00 am 9:30 pm (21:30, previous day)
6:00 am 12:30 am (00:30)
9:00 am 3:30 am (03:30)
12:00 pm 6:30 am (06:30)
3:00 pm 9:30 am (09:30)
6:00 pm 12:30 pm (12:30)
9:00 pm 3:30 pm (15:30)

Why developers convert IST to UTC

Servers, databases, cloud schedulers and CI pipelines usually run on UTC. A backup set for 2 am in India has to be entered as 20:30 the previous day, and a report due at 10 am has to fire at 04:30 UTC. Getting the date wrong is the most common slip, since every Indian time before 5:30 am is still yesterday in UTC.

The half hour also matters. Some tools only accept whole hours for a schedule or a time zone offset, so an Indian time like 9 am lands on 03:30 UTC and can’t be rounded without being 30 minutes off.

Writing the offset

In ISO 8601 India’s offset is written +05:30, so 2026-07-15T15:00+05:30 is 09:30 UTC on the same day. Some systems show it as GMT+5:30 or UTC+05:30. All of these mean the same clock.