UTC is 5 hours 30 minutes behind IST all year. So 12:00 PM IST = 6:30 AM UTC.
IST to UTC conversion table
| IST | UTC |
|---|---|
| 12:00 AM | 6:30 PM −1 day |
| 1:00 AM | 7:30 PM −1 day |
| 2:00 AM | 8:30 PM −1 day |
| 3:00 AM | 9:30 PM −1 day |
| 4:00 AM | 10:30 PM −1 day |
| 5:00 AM | 11:30 PM −1 day |
| 6:00 AM | 12:30 AM |
| 7:00 AM | 1:30 AM |
| 8:00 AM | 2:30 AM |
| 9:00 AM | 3:30 AM |
| 10:00 AM | 4:30 AM |
| 11:00 AM | 5:30 AM |
| 12:00 PM | 6:30 AM |
| 1:00 PM | 7:30 AM |
| 2:00 PM | 8:30 AM |
| 3:00 PM | 9:30 AM |
| 4:00 PM | 10:30 AM |
| 5:00 PM | 11:30 AM |
| 6:00 PM | 12:30 PM |
| 7:00 PM | 1:30 PM |
| 8:00 PM | 2:30 PM |
| 9:00 PM | 3:30 PM |
| 10:00 PM | 4:30 PM |
| 11:00 PM | 5:30 PM |
IST and UTC difference through 2027
The gap between the two zones on each date range, including daylight saving time changes:
| Dates | India Standard Time | Coordinated Universal Time | Difference |
|---|---|---|---|
| Sep 30, 2026 – Dec 31, 2027 | IST (UTC+5:30) | UTC (UTC+0) | UTC 5 hours 30 minutes behind |
Best time to meet or call
- Working hours (9 AM–5 PM) overlap from 2:30 PM–5:00 PM IST (9:00 AM–11:30 AM UTC), about 2 hours 30 minutes.
About India Standard Time (IST)
India uses one time zone, IST (UTC+5:30), all year. India does not observe daylight saving time, so its difference from the US and UK changes when they change their clocks. It's used in all of India, including New Delhi, Mumbai, Bengaluru, Hyderabad, Chennai and Kolkata.
About Coordinated Universal Time (UTC)
UTC is the world's reference time. It never changes for daylight saving time, which makes it the safest zone for scheduling across countries. It's used in Aviation, shipping, computer servers, science and international standards.
Frequently asked questions
What time is 12 PM IST in UTC?
12:00 PM IST is 6:30 AM UTC.
How many hours ahead or behind is UTC from IST?
UTC is 5 hours 30 minutes behind IST, all year.
Does IST change for daylight saving time?
No. India uses one time zone, IST (UTC+5:30), all year. India does not observe daylight saving time, so its difference from the US and UK changes when they change their clocks.
Does UTC change for daylight saving time?
No. UTC is the world's reference time. It never changes for daylight saving time, which makes it the safest zone for scheduling across countries.
What is the best time for a call between IST and UTC?
Right now, working hours overlap from 2:30 PM–5:00 PM IST (9:00 AM–11:30 AM UTC), about 2 hours 30 minutes.
More time zone conversions
- UTC to IST (reverse)
- IST to EST
- IST to PST
- IST to CST
- IST to GMT
- EST to UTC
- PST to UTC
- IST to GST
- All time zones
Sources
Reviewed by Gurmej Singh, Founder, Divy Digital Hub · Last reviewed: Wednesday, September 30, 2026. All calculations run in your browser. Editorial policy.