Dhaka zone
GMT+6 (GMT+6)
Kolkata zone
GMT+5:30 (GMT+5:30)
Difference
0h 30m behind Dhaka
Business overlap
7h (9-5 windows)
Working hours overlap
Each cell is one hour in Dhaka. Filled cells mark when 9 AM – 5 PM in Dhaka and Kolkata both apply.
7 hours per day
- Dhaka
- GMT+6
- Kolkata
- GMT+5:30
- Difference
- -0h 30m
- Business overlap
- 7h
Hour-by-hour conversion
Each row shows the matching local time in Kolkata for an hour in Dhaka.
| Dhaka | Kolkata | Day | Window |
|---|---|---|---|
| 12:00 AM | 11:30 PM | previous day | — |
| 1:00 AM | 12:30 AM | same day | — |
| 2:00 AM | 1:30 AM | same day | — |
| 3:00 AM | 2:30 AM | same day | — |
| 4:00 AM | 3:30 AM | same day | — |
| 5:00 AM | 4:30 AM | same day | — |
| 6:00 AM | 5:30 AM | same day | — |
| 7:00 AM | 6:30 AM | same day | — |
| 8:00 AM | 7:30 AM | same day | — |
| 9:00 AM | 8:30 AM | same day | — |
| 10:00 AM | 9:30 AM | same day | Both 9-5 |
| 11:00 AM | 10:30 AM | same day | Both 9-5 |
| 12:00 PM | 11:30 AM | same day | Both 9-5 |
| 1:00 PM | 12:30 PM | same day | Both 9-5 |
| 2:00 PM | 1:30 PM | same day | Both 9-5 |
| 3:00 PM | 2:30 PM | same day | Both 9-5 |
| 4:00 PM | 3:30 PM | same day | Both 9-5 |
| 5:00 PM | 4:30 PM | same day | — |
| 6:00 PM | 5:30 PM | same day | — |
| 7:00 PM | 6:30 PM | same day | — |
| 8:00 PM | 7:30 PM | same day | — |
| 9:00 PM | 8:30 PM | same day | — |
| 10:00 PM | 9:30 PM | same day | — |
| 11:00 PM | 10:30 PM | same day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 10:00 AM – 5:00 PM in Dhaka time. That gives you 7 hours per workday for live meetings.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Dhaka time to Kolkata time
Dhaka follows the Asia/Dhaka time zone (currently GMT+6, GMT+6), while Kolkata follows Asia/Kolkata (currently GMT+5:30, GMT+5:30). Kolkata is 0h 30m behind Dhaka right now.
Neither city observes daylight saving time, so the offset between them is the same all year.
Reverse this conversion
Kolkata to Dhaka
Open the converter
Plan a meeting between Dhaka and Kolkata
More conversions from Dhaka
Frequently asked questions
- How many hours is Dhaka from Kolkata?
- Kolkata is 0h 30m behind Dhaka right now.
- What time is 9:00 AM Dhaka in Kolkata?
- 9:00 AM in Dhaka is 8:30 AM in Kolkata.
- What time is 5:00 PM Dhaka in Kolkata?
- 5:00 PM in Dhaka is 4:30 PM in Kolkata.
- When do Dhaka and Kolkata business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 7 hours, roughly from 10:00 AM to 5:00 PM in Dhaka time.
- Does daylight saving time change the difference between Dhaka and Kolkata?
- Neither Dhaka nor Kolkata observes daylight saving time, so the offset between them is constant year-round.
Local time page
Time in Dhaka
Local time page
Time in Kolkata