Honolulu zone
HST (GMT-10)
Istanbul zone
GMT+3 (GMT+3)
Difference
13 hours ahead of Honolulu
Business overlap
No 9-5 overlap
Working hours overlap
Each cell is one hour in Honolulu. Filled cells mark when 9 AM – 5 PM in Honolulu and Istanbul both apply.
0 hours per day
- Honolulu
- GMT-10
- Istanbul
- GMT+3
- Difference
- +13h
- Business overlap
- 0h
Hour-by-hour conversion
Each row shows the matching local time in Istanbul for an hour in Honolulu.
| Honolulu | Istanbul | Day | Window |
|---|---|---|---|
| 12:00 AM | 1:00 PM | same day | — |
| 1:00 AM | 2:00 PM | same day | — |
| 2:00 AM | 3:00 PM | same day | — |
| 3:00 AM | 4:00 PM | same day | — |
| 4:00 AM | 5:00 PM | same day | — |
| 5:00 AM | 6:00 PM | same day | — |
| 6:00 AM | 7:00 PM | same day | — |
| 7:00 AM | 8:00 PM | same day | — |
| 8:00 AM | 9:00 PM | same day | — |
| 9:00 AM | 10:00 PM | same day | — |
| 10:00 AM | 11:00 PM | same day | — |
| 11:00 AM | 12:00 AM | next day | — |
| 12:00 PM | 1:00 AM | next day | — |
| 1:00 PM | 2:00 AM | next day | — |
| 2:00 PM | 3:00 AM | next day | — |
| 3:00 PM | 4:00 AM | next day | — |
| 4:00 PM | 5:00 AM | next day | — |
| 5:00 PM | 6:00 AM | next day | — |
| 6:00 PM | 7:00 AM | next day | — |
| 7:00 PM | 8:00 AM | next day | — |
| 8:00 PM | 9:00 AM | next day | — |
| 9:00 PM | 10:00 AM | next day | — |
| 10:00 PM | 11:00 AM | next day | — |
| 11:00 PM | 12:00 PM | next day | — |
Best meeting windows
Standard 9 AM – 5 PM hours in Honolulu and Istanbul do not overlap. Plan calls for early Honolulu morning or late Honolulu 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 Honolulu time to Istanbul time
Honolulu follows the Pacific/Honolulu time zone (currently HST, GMT-10), while Istanbul follows Europe/Istanbul (currently GMT+3, GMT+3). Istanbul is 13 hours ahead of Honolulu right now.
Neither city observes daylight saving time, so the offset between them is the same all year.
Reverse this conversion
Istanbul to Honolulu
Open the converter
Plan a meeting between Honolulu and Istanbul
More conversions from Honolulu
Frequently asked questions
- How many hours is Honolulu from Istanbul?
- Istanbul is 13 hours ahead of Honolulu right now.
- What time is 9:00 AM Honolulu in Istanbul?
- 9:00 AM in Honolulu is 10:00 PM in Istanbul.
- What time is 5:00 PM Honolulu in Istanbul?
- 5:00 PM in Honolulu is 6:00 AM (next day) in Istanbul.
- When do Honolulu and Istanbul business hours overlap?
- Standard 9 AM - 5 PM working hours in Honolulu and Istanbul do not overlap. You will need an early or late call.
- Does daylight saving time change the difference between Honolulu and Istanbul?
- Neither Honolulu nor Istanbul observes daylight saving time, so the offset between them is constant year-round.
Local time page
Time in Honolulu
Local time page
Time in Istanbul