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 24 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.