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BlogHow it works

UTC to IST Converter

Type a UTC time to read it in India. IST is UTC+5:30 all year with no daylight saving, so the conversion is the same on any date.

Coordinated Universal Time

UTCCoordinated Universal Time

ISTIndia Standard Time

––:––

Add 5 h 30 min to any UTC time to get India Standard Time, on every date.

UTC to IST hour table

UTC timeIST time
12:00 AM5:30 AM
1:00 AM6:30 AM
2:00 AM7:30 AM
3:00 AM8:30 AM
4:00 AM9:30 AM
5:00 AM10:30 AM
6:00 AM11:30 AM
7:00 AM12:30 PM
8:00 AM1:30 PM
9:00 AM2:30 PM
10:00 AM3:30 PM
11:00 AM4:30 PM
12:00 PM5:30 PM
1:00 PM6:30 PM
2:00 PM7:30 PM
3:00 PM8:30 PM
4:00 PM9:30 PM
5:00 PM10:30 PM
6:00 PM11:30 PM
7:00 PM12:30 AM+1 next day
8:00 PM1:30 AM+1 next day
9:00 PM2:30 AM+1 next day
10:00 PM3:30 AM+1 next day
11:00 PM4:30 AM+1 next day
All 24 UTC hours with the India time. From 18:30 UTC onward, India is on the next date (+1).

A fixed half-hour offset

India Standard Time is defined as UTC+5:30, based on the 82.5° east meridian, and India does not use daylight saving. UTC is the world reference scale computed by the BIPM from atomic clocks, and it does not change with the seasons either. So the table above is valid for every day of every year.

The half hour means that a whole-hour UTC time always becomes a half-hour time in India: 09:00 UTC is 2:30 PM IST, 21:00 UTC is 2:30 AM IST the next day.

Deadlines and launches given in UTC

Exams, conference submissions, online sales and software releases are often announced in UTC. Before you plan around one, check whether it falls on the next day in India: anything from 18:30 UTC onward does. A release at 20:00 UTC on Monday is live at 1:30 AM on Tuesday in India.

Some academic deadlines use Anywhere on Earth (AoE), which is UTC−12. A deadline of 23:59 AoE on the 10th is 11:59 UTC on the 11th, or 5:29 PM IST on the 11th.

Handy reference points

  • 00:00 UTC = 5:30 AM IST.
  • 06:00 UTC = 11:30 AM IST.
  • 12:00 UTC = 5:30 PM IST.
  • 18:30 UTC = midnight IST, the next day.

Other zones from India

The same 5:30 gap applies to fixed GMT, see IST to GMT. For US contacts the gap changes with American daylight saving: see IST to EST and IST to CST. The Delhi clock shows India's time now.

UTC to IST questions

How do I convert UTC to IST?

Add 5 hours 30 minutes to the UTC time. If the result passes midnight, it is the next day in India.

What is 18:30 UTC in India?

18:30 UTC is midnight, 00:00 IST, at the start of the next day.

What is 12:00 UTC in India?

12:00 UTC is 5:30 PM IST.

Does the UTC to IST offset ever change?

No. India has no daylight saving, so IST is UTC+5:30 on every date.

When is an AoE deadline in India?

Anywhere on Earth is UTC−12. A deadline of 23:59 AoE is 11:59 UTC the next day, which is 5:29 PM IST on that next day.