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