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