IST to UTC Converter
Convert India Standard Time (IST) to Coordinated Universal Time (UTC). Pick any date — daylight saving is applied from the IANA time zone database, so the answer is right in March and in November.
IST to UTC
IST is 5 hours and 30 minutes ahead of UTC.
Quick answer. UTC is 5 hours and 30 minutes behind IST, and that gap never changes. Neither IST nor UTC observes daylight saving time, so the same conversion is correct on every date of the year.
Time difference
India Standard Time (IST)
IST UTC+5:30 No DST
Mumbai, Delhi, Bengaluru, Chennai, Kolkata, Hyderabad.
India runs on a single time zone, UTC+5:30, and has not observed daylight saving time since 1945. The half-hour offset is why IST conversions rarely land on a round hour.
Coordinated Universal Time (UTC)
UTC UTC+0:00 No DST
Used by aviation, servers, logs and international standards.
UTC never changes, and neither does IST, so this is the one conversion on the site with a single fixed answer all year: subtract 5 hours 30 minutes.
IST to UTC conversion table
Every hour of the day for 2026. Neither side observes daylight saving, so this table is correct on every date of the year.
| IST | UTC | 24-hour |
|---|---|---|
| 12 AM | 6:30 PM −1 day | 18:30 |
| 1 AM | 7:30 PM −1 day | 19:30 |
| 2 AM | 8:30 PM −1 day | 20:30 |
| 3 AM | 9:30 PM −1 day | 21:30 |
| 4 AM | 10:30 PM −1 day | 22:30 |
| 5 AM | 11:30 PM −1 day | 23:30 |
| 6 AM | 12:30 AM | 00:30 |
| 7 AM | 1:30 AM | 01:30 |
| 8 AM | 2:30 AM | 02:30 |
| 9 AM | 3:30 AM | 03:30 |
| 10 AM | 4:30 AM | 04:30 |
| 11 AM | 5:30 AM | 05:30 |
| 12 PM | 6:30 AM | 06:30 |
| 1 PM | 7:30 AM | 07:30 |
| 2 PM | 8:30 AM | 08:30 |
| 3 PM | 9:30 AM | 09:30 |
| 4 PM | 10:30 AM | 10:30 |
| 5 PM | 11:30 AM | 11:30 |
| 6 PM | 12:30 PM | 12:30 |
| 7 PM | 1:30 PM | 13:30 |
| 8 PM | 2:30 PM | 14:30 |
| 9 PM | 3:30 PM | 15:30 |
| 10 PM | 4:30 PM | 16:30 |
| 11 PM | 5:30 PM | 17:30 |
Highlighted rows are the 3 hours where a 9–6 working day in IST overlaps a 9–5 working day in UTC.
Popular conversion times
| IST | UTC |
|---|---|
| 9 AM IST | 3:30 AM |
| 10 AM IST | 4:30 AM |
| 11 AM IST | 5:30 AM |
| 12 PM IST | 6:30 AM |
| 3 PM IST | 9:30 AM |
| 5 PM IST | 11:30 AM |
| 6 PM IST | 12:30 PM |
| 8 PM IST | 2:30 PM |
Business hours and meeting times
Comparing a 9:00–18:00 working day in IST against 9:00–17:00 in UTC, across the whole week — a slot only counts if it lands on a working day at both ends.
Both sides work Monday to Friday, so the working weeks line up and you share 5 days.
Rows are days in IST. Columns are hours of the IST day.
Best recurring slot
3 PM IST = 9:30 AM UTC , every shared working day
Across the week that is 15 overlapping working hours . The widest day is Monday, with 3 hours.
| Day | Overlap (IST) | Local (UTC) | Hours |
|---|---|---|---|
| Monday | 3 PM – 6 PM | 9:30 AM – 12:30 PM | 3 |
| Tuesday | 3 PM – 6 PM | 9:30 AM – 12:30 PM | 3 |
| Wednesday | 3 PM – 6 PM | 9:30 AM – 12:30 PM | 3 |
| Thursday | 3 PM – 6 PM | 9:30 AM – 12:30 PM | 3 |
| Friday | 3 PM – 6 PM | 9:30 AM – 12:30 PM | 3 |
| Saturday | IST weekend | — | — |
| Sunday | IST weekend | — | — |
About this conversion
India runs on a single time zone, UTC+5:30, and has not observed daylight saving time since 1945. The half-hour offset is why IST conversions rarely land on a round hour.
UTC never changes, and neither does IST, so this is the one conversion on the site with a single fixed answer all year: subtract 5 hours 30 minutes.
Frequently asked questions
What is the time difference between IST and UTC?
UTC is 5 hours and 30 minutes behind IST, on every date of the year. Neither side observes daylight saving time.
What time is 9 AM IST in UTC?
9:00 AM IST is 3:30 AM in UTC, all year round.
What is the best time for a meeting between IST and UTC?
Working days overlap for about 3 hours on a typical Monday: 3 PM to 6 PM IST, which is 9:30 AM to 12:30 PM in UTC. For a recurring invite, 3 PM IST / 9:30 AM UTC is the slot that works on the most days.
Does India observe daylight saving time?
No. India has kept a single UTC+5:30 offset since 1945 and does not use daylight saving time, so IST reads the same on every date of the year. Any change in the gap to UTC comes entirely from the other side.
How many hours a week do IST and UTC actually overlap?
15 hours across the week, spread over 5 working days. 3 PM IST (9:30 AM UTC) is the slot that works on the most days, so it is the one to put in a recurring invite.
Is IST ahead of UTC?
Yes. IST runs ahead of UTC by 5 hours and 30 minutes, so a working morning in IST lands the previous evening or night in UTC.
Converting the other way
Looking up times starting from UTC? Use the UTC to IST converter, which leads with UTC as the starting point and is written for that reader.
Related converters
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- IST to BST · British Summer Time