Time in Chittagong and Kolkata
The time difference between Chittagong and Kolkata is 30 minutes. Kolkata is 30 minutes behind Chittagong.
This means 9am in Chittagong is 8:30am in Kolkata and 5pm in Chittagong is 4:30pm in Kolkata.
Chittagong
- The current local time in Chittagong is 6:33 am (June 4, 2026)
- The time zone offset for Chittagong, Bangladesh, is UTC+06:00
Kolkata
- The current local time in Kolkata is 6:03 am (June 4, 2026)
- Kolkata is in the Indian Standard Time Zone
- The time zone offset for Kolkata, India, is UTC+05:30
How to convert Chittagong time to Kolkata time?
Subtract 30 minutes from Chittagong time to get Kolkata time.
Time in Chittagong
00:00
Time in Kolkata
00:00
Use the slider above to convert Chittagong time to Kolkata time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| Chittagong | Kolkata |
|---|---|
| 12am | 11:30pm |
| 1am | 0:30am |
| 2am | 1:30am |
| 3am | 2:30am |
| 4am | 3:30am |
| 5am | 4:30am |
| 6am | 5:30am |
| 7am | 6:30am |
| 8am | 7:30am |
| 9am | 8:30am |
| 10am | 9:30am |
| 11am | 10:30am |
| 12pm | 11:30am |
| 1pm | 12:30pm |
| 2pm | 1:30pm |
| 3pm | 2:30pm |
| 4pm | 3:30pm |
| 5pm | 4:30pm |
| 6pm | 5:30pm |
| 7pm | 6:30pm |
| 8pm | 7:30pm |
| 9pm | 8:30pm |
| 10pm | 9:30pm |
| 11pm | 10:30pm |