Kolkata zone
GMT+5:30 (GMT+5:30)
Auckland zone
GMT+12 (GMT+12)
Difference
6h 30m ahead of Kolkata
Business overlap
2h (9-5 windows)
Working hours overlap
Each cell is one hour in Kolkata. Filled cells mark when 9 AM – 5 PM in Kolkata and Auckland both apply.
2 hours per day
- Kolkata
- GMT+5:30
- Auckland
- GMT+12
- Difference
- +6h 30m
- Business overlap
- 2h
Hour-by-hour conversion
Each row shows the matching local time in Auckland for an hour in Kolkata.
| Kolkata | Auckland | Day | Window |
|---|---|---|---|
| 12:00 AM | 6:30 AM | same day | — |
| 1:00 AM | 7:30 AM | same day | — |
| 2:00 AM | 8:30 AM | same day | — |
| 3:00 AM | 9:30 AM | same day | — |
| 4:00 AM | 10:30 AM | same day | — |
| 5:00 AM | 11:30 AM | same day | — |
| 6:00 AM | 12:30 PM | same day | — |
| 7:00 AM | 1:30 PM | same day | — |
| 8:00 AM | 2:30 PM | same day | — |
| 9:00 AM | 3:30 PM | same day | Both 9-5 |
| 10:00 AM | 4:30 PM | same day | Both 9-5 |
| 11:00 AM | 5:30 PM | same day | — |
| 12:00 PM | 6:30 PM | same day | — |
| 1:00 PM | 7:30 PM | same day | — |
| 2:00 PM | 8:30 PM | same day | — |
| 3:00 PM | 9:30 PM | same day | — |
| 4:00 PM | 10:30 PM | same day | — |
| 5:00 PM | 11:30 PM | same day | — |
| 6:00 PM | 12:30 AM | next day | — |
| 7:00 PM | 1:30 AM | next day | — |
| 8:00 PM | 2:30 AM | next day | — |
| 9:00 PM | 3:30 AM | next day | — |
| 10:00 PM | 4:30 AM | next day | — |
| 11:00 PM | 5:30 AM | next day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 9:00 AM – 11:00 AM in Kolkata time. That gives you 2 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 Auckland time
Kolkata follows the Asia/Kolkata time zone (currently GMT+5:30, GMT+5:30), while Auckland follows Pacific/Auckland (currently GMT+12, GMT+12). Auckland is 6h 30m ahead of Kolkata right now.
Auckland observes daylight saving time, while Kolkata does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Kolkata
Does not observe daylight saving time.
Auckland
- Fall back · Sunday, April 5, 2026
- Spring forward · Sunday, September 27, 2026
Reverse this conversion
Auckland to Kolkata
Open the converter
Plan a meeting between Kolkata and Auckland
More conversions from Kolkata
Frequently asked questions
- How many hours is Kolkata from Auckland?
- Auckland is 6h 30m ahead of Kolkata right now.
- What time is 9:00 AM Kolkata in Auckland?
- 9:00 AM in Kolkata is 3:30 PM in Auckland.
- What time is 5:00 PM Kolkata in Auckland?
- 5:00 PM in Kolkata is 11:30 PM in Auckland.
- When do Kolkata and Auckland business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 2 hours, roughly from 9:00 AM to 11:00 AM in Kolkata time.
- Does daylight saving time change the difference between Kolkata and Auckland?
- Auckland observes daylight saving time while Kolkata does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Kolkata
Local time page
Time in Auckland