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