Time in Kolkata
It is 07:57 on Thursday, 17 September 2026 in Kolkata. Kolkata is in India. Civil time uses the IANA zone Asia/Kolkata at +05:30 from UTC (not in effect). Use the live clock below for the current local time, then jump to a difference or conversion when you need meeting math.
Kolkata sits on Asia/Kolkata at UTC+05:30 without daylight saving. The city’s clocks match Delhi and Mumbai even though sunrise arrives earlier on the eastern side of India.
Business hours often run about 10:00–18:00. Calls with Singapore or Dubai fit the working day easily; New York mornings require late-evening Kolkata slots.
Eastern India sees the sun earlier on the same IST clock. A 06:00 site start in Kolkata is still 06:00 in Mumbai — only the sky is different.
Kolkata time zone
- UTC offset
- UTC+05:30
- Abbreviation
- IST
- IANA
- Asia/Kolkata
- DST
- not in effect
Daylight saving in Kolkata
Kolkata is currently on its standard offset. Kolkata does not change its clocks. The offset stays +05:30 all year, so the gap to other cities only moves when the other side changes.
Daylight in Kolkata today
The sun rises at 05:23 and sets at 17:38, giving 12 h 15 m of daylight. Solar noon falls at 11:31, 29 minutes before the clock reads twelve, because Kolkata sits east of the 82.5° E meridian its current offset is built on.
- Sunrise
- 05:23
- Sunset
- 17:38
- Daylight
- 12 h 15 m
- Solar noon
- 11:31Solar noon is when the sun sits highest in the sky. It drifts from clock noon across a time zone, which is why one clock can span very different days.
Best time to call Kolkata
Overlap between a 09:00–17:00 working day in Kolkata and the same hours in other major cities.
Same clock as Kolkata
These cities share Asia/Kolkata, so they show the same civil time as Kolkata right now. Compare them with cities in other zones for a real time difference.
Popular time differences
More in India
Related guides
About Kolkata
- Population
- 4,496,694The administrative city figure recorded by Wikidata. The surrounding urban area is larger.
- Region
- West Bengal
- Coordinates
- 22.5675° N, 88.3700° ELatitude is what drives the sunrise and sunset times above.
- Currency
- Indian Rupee (INR)
- Calling code
- +91Dial this after your international access prefix, and check the overlap table above before you call.
- Languages
- Bangla, Hindi, and English
- Airports
- CCUNetaji Subhas Chandra Bose InternationalArrival and departure boards at these airports quote Kolkata local time, not the time where you booked.
Frequently asked questions about time in Kolkata
- What time is it in Kolkata right now?
- It is 07:57 in Kolkata as this page was generated, and the clock above keeps ticking in your browser. Kolkata uses the IANA zone Asia/Kolkata, currently +05:30.
- Which time zone is Kolkata in?
- Kolkata is in the IST time zone (Asia/Kolkata), currently +05:30. Always store the identifier rather than the offset — the offset changes with daylight saving, the identifier does not.
- Does Kolkata observe daylight saving time?
- No. Kolkata stays on +05:30 all year. Any change in the gap to another city comes from that city changing its own clocks.
- Is Kolkata ahead of or behind UTC?
- Kolkata is currently at +05:30. When it is 12:00 UTC, the local time in Kolkata is 17:30.
Well-known places in Kolkata
If you are checking the time in Kolkata because you are heading there, these are the most widely documented places to see.
- Victoria MemorialRead more on Wikipedia
- Howrah BridgeRead more on Wikipedia
- Indian MuseumRead more on Wikipedia