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