Calcutta — Asia/Calcutta
The current local time in the Asia/Calcutta IANA time zone is shown below. It is the tz database identifier used in India in the area around Calcutta. The zone is currently at UTC +05:30 · IST and does not observe daylight saving time.
Asia/Calcutta
Thursday, 22 October 2026 IST
Zone information
Offset & DST
Current UTC offset: +05:30
Daylight saving: Not observed
Countries using Asia/Calcutta
Calcutta vs. major cities
How far Calcutta is from the world's main business centres right now, what time it is there when the working day starts in Calcutta, and which hours of a 09:00–17:00 day the two places share. Daylight saving changes are applied automatically.
| City | Difference | At 09:00 in Calcutta | Shared office hours |
|---|---|---|---|
| New York · United States | −9:30 h | 23:30 (prev. day) | None |
| Los Angeles · United States | −12:30 h | 20:30 (prev. day) | None |
| São Paulo · Brazil | −8:30 h | 00:30 | None |
| London · United Kingdom | −4:30 h | 04:30 | 13:30–17:00 |
| Paris · France | −3:30 h | 05:30 | 12:30–17:00 |
| Johannesburg · South Africa | −3:30 h | 05:30 | 12:30–17:00 |
| Dubai · United Arab Emirates | −1:30 h | 07:30 | 10:30–17:00 |
| Delhi · India | Same time | 09:00 | 09:00–17:00 |
| Singapore · Singapore | +2:30 h | 11:30 | 09:00–14:30 |
| Beijing · China | +2:30 h | 11:30 | 09:00–14:30 |
Shared office hours are shown in Calcutta time. Compare any set of cities hour by hour in the time zone converter, or pick a slot that suits everyone with the event planner.
Clock changes in Calcutta
Calcutta has kept the same UTC +05:30 offset without daylight saving time since at least 1970.
No clock changes are scheduled in 2026 or 2027: Calcutta stays on UTC +05:30 all year.
Source: IANA tz database, as shipped with the Unicode ICU library.
Zones on the same clock as Calcutta
All IANA zones →These zones show the same time as Asia/Calcutta on every day of 2026. Their histories may differ.
More references for Asia/Calcutta
Compare Asia/Calcutta against other zones with the converter, map, and world clock, or browse the full directory.