Tehran to Chennai Time Converter
Convert time between Tehran and Chennai with live clocks and the current, daylight-saving-aware time difference.
About this tool
Tehran to Chennai Time Converter
Convert time between Tehran and Chennai with live clocks and the current, daylight-saving-aware time difference.
See what time it is in Chennai when you know the time in Tehran — this converter shows both cities' clocks live and the exact current time difference between them, adjusted automatically for daylight saving. Tehran runs on the Asia/Tehran zone (IRST) and Chennai on Asia/Kolkata (IST); the tool reads your browser's own time-zone data, so the offset is always right even across the days each city changes its clocks. Type any Tehran time to pin the matching Chennai time, or press swap to convert the other way. Nothing is uploaded.
How to use Tehran to Chennai Time Converter
- 1
Open Tehran to Chennai Time Converter on AltFTool — it loads instantly in your browser.
- 2
Read the live clocks at the top for the current time in Tehran and Chennai.
- 3
Type a specific time into the Tehran field to see the matching Chennai time and date.
- 4
Press swap to convert Chennai times to Tehran instead.
Why use Tehran to Chennai Time Converter
Live clocks for both cities
The current local time in Tehran and Chennai updates every second, with each city's UTC offset and abbreviation shown.
Daylight-saving aware
Offsets come from the browser's IANA time-zone database, so the difference is correct on either side of a daylight-saving change — no stale table.
Pick any time
Enter a specific Tehran time to see the exact Chennai time for today, including the date if the conversion crosses midnight.
Free and private
It runs entirely in your browser — no account, and no times are sent anywhere.
Common use cases
- Scheduling a call or meeting between Tehran and Chennai without miscounting the hours.
- Working out when a live event in Chennai starts in Tehran local time.
- Planning travel or a deadline across the Tehran–Chennai time difference.
Frequently asked questions
What is the time difference between Tehran and Chennai?
It can change through the year because one or both cities observe daylight saving, so the converter above shows the current difference live rather than a fixed number. Tehran uses Asia/Tehran and Chennai uses Asia/Kolkata.
What time is it in Chennai when it's 9:00 AM in Tehran?
Type 9:00 into the Tehran field above and the converter shows the matching Chennai time for today, daylight saving included. It also shows the Chennai date in case the time crosses midnight.
Does this converter handle daylight saving between Tehran and Chennai?
Yes. It uses your browser's own time-zone data (Asia/Tehran for Tehran, Asia/Kolkata for Chennai), which carries each region's daylight-saving rules, so the result stays correct all year.
Can it convert Chennai time to Tehran time as well?
Yes — press the swap button and the converter flips to show Chennai → Tehran, with the same live clocks and time picker.
Is the Tehran to Chennai time conversion accurate and private?
It relies on the standard IANA time-zone database built into your browser, not an approximation, and makes no network calls, so your times stay on your device.
Embed this tool on your site
Add the Tehran to Chennai Time Converter widget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
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