UTC to IST time converter
Enter a time in UTC to get the matching time in IST, whether it falls on the next or previous day, and a full 24-hour table. Handy for planning calls between a UTC schedule and Mumbai and New Delhi.
Loading the tool…
Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter time in utc and day in utc (optional).
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
IST time = UTC time + 5.5 hours, because IST is UTC+5:30 and UTC is UTC+0. If the result reaches 24:00 or more, subtract 24 hours and move to the next day; if it drops below 00:00, add 24 hours and move to the previous day.
Example
Inputs: Time in UTC = 22:00, Day in UTC (optional) = Thursday. Result: Time in IST: 03:30; Day change: Next day (+1); Offset difference (IST minus UTC): 5.5 hours.
Limits and caveats
- Fixed offsets are used: UTC = UTC+0 and IST = UTC+5:30, whatever the date.
- IST here is India Standard Time (UTC+5:30), not Irish or Israel time.
Questions about this tool
What time is 09:00 UTC in IST?
09:00 UTC is 14:30 IST on the same day, because IST is 5.5 hours ahead of UTC.
Does daylight saving time change the result?
No. UTC never changes and India does not use daylight saving, so the 5.5 hour gap between UTC and IST holds all year.
Which IST does this tool use?
Here IST means India Standard Time, UTC+5:30. The same letters are used for Irish Standard Time (UTC+1, Irish summer time) and Israel Standard Time (UTC+2).