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UTC → IST • Time Zone Converter

UTC to IST Converter

India Standard Time is 5 hours 30 minutes ahead of UTC. To convert UTC to IST, add 5 hours 30 minutes. For example, 3:00 PM UTC is 8:30 PM IST.

On this page, IST means India Standard Time at UTC+05:30. India uses this offset year-round under current rules. Because IST is also used as an abbreviation for Irish Standard Time and Israel Standard Time, the converter keeps the India meaning explicit instead of silently assuming every “IST” is the same zone.
Time differenceUTC + 5:30India IST is UTC+05:30
12:00 UTC5:30 PM ISTSame calendar day
19:00 UTC12:30 AM ISTNext calendar day
Convert a Time UTC to IST Table IST Time Now
Convert UTC to India Standard Time here, or jump to another related converter or the IST reference page.
Popular: GMT to IST EST to IST UTC to PDT UTC to MST UTC Time IST Time
Interactive Converter

Convert UTC to IST

Choose any UTC date and time. The primary result uses India Standard Time at UTC+05:30. A second line checks the same instant against the date-aware IANA zone Asia/Kolkata, which is useful for historical dates and confirms the current civil-time offset used in India.

UTC
UTC+00:00 · selected date
→
IST
Add 5 hours 30 minutes to UTC
Asia/Kolkata comparison loading…
IST Time Now

UTC to IST Conversion Table

Use this complete reference for every whole UTC hour. India Standard Time is UTC+05:30, so every result includes the 30-minute offset. The date column flags conversions that land on the next IST calendar day.

Convert a custom minute →
UTCUTC 24-hourISTIST 24-hourIST Date
12:00 am UTC00:005:30 am IST05:30Same day
1:00 am UTC01:006:30 am IST06:30Same day
2:00 am UTC02:007:30 am IST07:30Same day
3:00 am UTC03:008:30 am IST08:30Same day
4:00 am UTC04:009:30 am IST09:30Same day
5:00 am UTC05:0010:30 am IST10:30Same day
6:00 am UTC06:0011:30 am IST11:30Same day
7:00 am UTC07:0012:30 pm IST12:30Same day
8:00 am UTC08:001:30 pm IST13:30Same day
9:00 am UTC09:002:30 pm IST14:30Same day
10:00 am UTC10:003:30 pm IST15:30Same day
11:00 am UTC11:004:30 pm IST16:30Same day
12:00 pm UTC12:005:30 pm IST17:30Same day
1:00 pm UTC13:006:30 pm IST18:30Same day
2:00 pm UTC14:007:30 pm IST19:30Same day
3:00 pm UTC15:008:30 pm IST20:30Same day
4:00 pm UTC16:009:30 pm IST21:30Same day
5:00 pm UTC17:0010:30 pm IST22:30Same day
6:00 pm UTC18:0011:30 pm IST23:30Same day
7:00 pm UTC19:0012:30 am IST00:30Next day
8:00 pm UTC20:001:30 am IST01:30Next day
9:00 pm UTC21:002:30 am IST02:30Next day
10:00 pm UTC22:003:30 am IST03:30Next day
11:00 pm UTC23:004:30 am IST04:30Next day
IST Abbreviation

Which IST Do You Mean?

This converter uses IST to mean India Standard Time, UTC+05:30. The abbreviation is not globally unique: IST can also mean Irish Standard Time, normally UTC+01:00 when observed, or Israel Standard Time, UTC+02:00 during its standard-time phase. If a city or country matters, use a location-based zone rather than relying on the three-letter abbreviation alone.

IST Time NowIndia Time ZoneTime Zone AbbreviationsTime Zone Converter
UTC NowLive timeUTC+00:00
India IST NowLive timeAsia/Kolkata · UTC+05:30
Ireland NowLive timeEurope/Dublin · date-aware
Israel NowLive timeAsia/Jerusalem · date-aware

How to Convert UTC to IST

The India conversion is fixed under current rules: IST = UTC + 5 hours 30 minutes. Add five hours, then add another 30 minutes, and move to the next calendar day if the result passes midnight.

1. Start with the UTC timeExample: 18:45 UTC on August 22.
2. Add five hours18:45 + 05:00 = 23:45.
3. Add 30 minutes23:45 + 00:30 = 00:15.
4. Check the calendar dateThe result crossed midnight, so the IST result is 12:15 AM on August 23.

Best Time for a UTC to IST Meeting

If both sides keep a conventional 9:00 AM–5:00 PM workday, the shared business-hours window is 9:00 AM–11:30 AM UTC, which is 2:30 PM–5:00 PM IST.

Open meeting planner →
Best overlap

09:00–11:30 UTC

Converts to 14:30–17:00 IST and keeps both sides inside conventional 9-to-5 business hours.

UTC afternoon

15:00 UTC = 20:30 IST

Convenient for UTC, but already outside a conventional IST workday.

IST morning

09:00 IST = 03:30 UTC

Convenient for India, but far too early for a normal UTC workday.

UTC

Coordinated Universal Time

UTC is the global time standard used as the reference for civil time zones and UTC offsets. It does not move forward or backward for daylight saving time.

UTC Time NowUTC Time Zone GuideUTC Offsets
IST

India Standard Time

India Standard Time is UTC+05:30 and is used throughout India under current rules. The half-hour offset is fixed year-round; India does not currently observe daylight saving time.

IST Time NowIndia Time ZoneUTC+5:30 Time Now

Use these related converters when the source zone, target zone or abbreviation changes.

All time zone conversions →
Pacific DaylightUTC to PDTConvert UTC to Pacific Daylight Time.→ Mountain StandardUTC to MSTConvert UTC to Mountain Standard Time.→ IST PairGMT to ISTConvert Greenwich Mean Time to India Standard Time.→ IST PairEST to ISTConvert Eastern Standard Time to India Standard Time.→ Reverse Direction FamilyIST to ESTConvert India Standard Time to Eastern Standard Time.→ Live ISTIST Time NowCheck India Standard Time and its abbreviation meanings.→ Fixed OffsetUTC+5:30 Time NowOpen the matching fixed-offset reference.→ Any PairTime Zone ConverterConvert any supported zone, offset or location.→

UTC to IST: Precision Notes

Four details prevent most mistakes: India IST is UTC+05:30, the 30-minute component matters, India currently stays on the same offset year-round, and the abbreviation IST is not globally unique.

India IST offsetUTC+05:30 year-round
Half-hour differenceDo not round IST to UTC+5
Date rollover18:30–23:59 UTC → next IST date
IST abbreviationIndia, Ireland and Israel can use IST

Sources & Methodology

The UTC→India Standard Time conversion is arithmetic: India IST is UTC+05:30. CalendarHours also checks the selected instant against the date-aware IANA identifier Asia/Kolkata, which helps preserve historical civil-time accuracy instead of assuming the modern offset for every date.

IANA Time Zone Database — civil-time rules and current tzdb releasesCSIR–National Physical Laboratory — India Standard Time

Last reviewed: August 22, 2026. Live values are calculated in the browser with date-aware time-zone data available to the user's system.

Why the IST Meaning Is Explicit

A converter labeled “UTC to IST” can be ambiguous because IST is reused for multiple time zones. Search intent commonly refers to India Standard Time, so this page uses UTC+05:30 as the primary conversion and names India directly. Irish and Israel interpretations are shown separately rather than blended into the result.

IST Abbreviation GuideIndia Time Zone

UTC to IST FAQ

Quick answers to the most common UTC-to-India-Standard-Time conversion questions.

How do you convert UTC to IST?

Add 5 hours and 30 minutes to UTC. India Standard Time (IST) is UTC+05:30, so 12:00 UTC is 5:30 PM IST and 17:00 UTC is 10:30 PM IST.

Is IST always 5 hours 30 minutes ahead of UTC?

India Standard Time is always UTC+05:30 and India does not currently observe daylight saving time. The abbreviation IST can mean other time zones in other contexts, so this page uses IST specifically for India Standard Time.

What does IST mean on this converter?

IST means India Standard Time on this page. India Standard Time is UTC+05:30 and is the civil time used throughout India.

Does India Standard Time use daylight saving time?

No. India Standard Time stays at UTC+05:30 throughout the year under current rules, so the UTC-to-IST difference does not change seasonally.

What is 8 AM UTC in IST?

8:00 AM UTC is 1:30 PM IST on the same calendar date.

What is 12 PM UTC in IST?

12:00 PM UTC is 5:30 PM IST on the same calendar date.

What is 3 PM UTC in IST?

3:00 PM UTC is 8:30 PM IST on the same calendar date.

What is 5 PM UTC in IST?

5:00 PM UTC is 10:30 PM IST on the same calendar date.

When does UTC to IST change the calendar date?

UTC times from 6:30 PM through 11:59 PM convert to the next calendar day in India Standard Time because adding 5 hours 30 minutes crosses midnight.

Can IST also mean Irish Standard Time or Israel Standard Time?

Yes. IST is an ambiguous abbreviation. It can also refer to Irish Standard Time or Israel Standard Time. For the UTC-to-IST search intent on this page, IST means India Standard Time at UTC+05:30.

What is the best time for a UTC to IST meeting?

For conventional 9:00 AM to 5:00 PM workdays in both zones, the shared window is 9:00 AM to 11:30 AM UTC, which is 2:30 PM to 5:00 PM IST.