Kolkata zone
GMT+5:30 (GMT+5:30)
Honolulu zone
HST (GMT-10)
Difference
15h 30m behind Kolkata
Business overlap
No 9-5 overlap
Working hours overlap
Each cell is one hour in Kolkata. Filled cells mark when 9 AM – 5 PM in Kolkata and Honolulu both apply.
0 hours per day
- Kolkata
- GMT+5:30
- Honolulu
- GMT-10
- Difference
- -15h 30m
- Business overlap
- 0h
Hour-by-hour conversion
Each row shows the matching local time in Honolulu for an hour in Kolkata.
| Kolkata | Honolulu | Day | Window |
|---|---|---|---|
| 12:00 AM | 8:30 AM | previous day | — |
| 1:00 AM | 9:30 AM | previous day | — |
| 2:00 AM | 10:30 AM | previous day | — |
| 3:00 AM | 11:30 AM | previous day | — |
| 4:00 AM | 12:30 PM | previous day | — |
| 5:00 AM | 1:30 PM | previous day | — |
| 6:00 AM | 2:30 PM | previous day | — |
| 7:00 AM | 3:30 PM | previous day | — |
| 8:00 AM | 4:30 PM | previous day | — |
| 9:00 AM | 5:30 PM | previous day | — |
| 10:00 AM | 6:30 PM | previous day | — |
| 11:00 AM | 7:30 PM | previous day | — |
| 12:00 PM | 8:30 PM | previous day | — |
| 1:00 PM | 9:30 PM | previous day | — |
| 2:00 PM | 10:30 PM | previous day | — |
| 3:00 PM | 11:30 PM | previous day | — |
| 4:00 PM | 12:30 AM | same day | — |
| 5:00 PM | 1:30 AM | same day | — |
| 6:00 PM | 2:30 AM | same day | — |
| 7:00 PM | 3:30 AM | same day | — |
| 8:00 PM | 4:30 AM | same day | — |
| 9:00 PM | 5:30 AM | same day | — |
| 10:00 PM | 6:30 AM | same day | — |
| 11:00 PM | 7:30 AM | same day | — |
Best meeting windows
Standard 9 AM – 5 PM hours in Kolkata and Honolulu do not overlap. Plan calls for early Kolkata morning or late Kolkata evening, and rotate the burden between sides.
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 Honolulu time
Kolkata follows the Asia/Kolkata time zone (currently GMT+5:30, GMT+5:30), while Honolulu follows Pacific/Honolulu (currently HST, GMT-10). Honolulu is 15h 30m behind Kolkata right now.
Neither city observes daylight saving time, so the offset between them is the same all year.
Reverse this conversion
Honolulu to Kolkata
Open the converter
Plan a meeting between Kolkata and Honolulu
More conversions from Kolkata
Frequently asked questions
- How many hours is Kolkata from Honolulu?
- Honolulu is 15h 30m behind Kolkata right now.
- What time is 9:00 AM Kolkata in Honolulu?
- 9:00 AM in Kolkata is 5:30 PM (previous day) in Honolulu.
- What time is 5:00 PM Kolkata in Honolulu?
- 5:00 PM in Kolkata is 1:30 AM in Honolulu.
- When do Kolkata and Honolulu business hours overlap?
- Standard 9 AM - 5 PM working hours in Kolkata and Honolulu do not overlap. You will need an early or late call.
- Does daylight saving time change the difference between Kolkata and Honolulu?
- Neither Kolkata nor Honolulu observes daylight saving time, so the offset between them is constant year-round.
Local time page
Time in Kolkata
Local time page
Time in Honolulu