Kolkata time now, live flip clock
Synchronizing time
Kolkata, India is on Indian Standard Time (IST), UTC+5:30, all year. This zone does not change clocks for daylight saving. The live clock is synchronized with Digital Clock Online’s server after the page loads.
Time in Kolkata, India at a glance
- Time zone
- Indian Standard Time (IST)
- Standard time
- IST, UTC+5:30
- Daylight saving time
- Not observed
- Used in
- India
Time zone names for developers
IANA time zone identifier: Asia/Kolkata
Places on Indian Standard Time
Indian Standard Time covers Mumbai, Delhi, Bengaluru and Hyderabad. Used in India.
How many hours ahead or behind Kolkata
On 7 October 2026, London is 4 hours 30 minutes behind Kolkata.
| City | Difference from Kolkata |
|---|---|
| London | 4 hours 30 minutes behind |
| New York | 9 hours 30 minutes behind |
| Los Angeles | 12 hours 30 minutes behind |
| Dubai | 1 hour 30 minutes behind |
| Singapore | 2 hours 30 minutes ahead |
| Tokyo | 3 hours 30 minutes ahead |
| Sydney | 5 hours 30 minutes ahead |
| Your time zone | Detected after this page loads |
Places on the same standard time as Kolkata, India
These places keep the same standard time as Kolkata, UTC+5:30. Where one of them changes clocks, they can be an hour apart for part of the year.