Time difference between Honolulu and Singapore: 18 hours
Honolulu
United States (Hawaii) · UTC-10
--:--:--
Singapore
Singapore · UTC+8
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Honolulu is 18 hours behind Singapore
Best time for a call or meeting
Honolulu 15:00–18:00 = Singapore 09:00–12:00
Both cities are within business hours (9:00–18:00).
Convert a specific time
→ Singapore
Hour-by-hour conversion
| Honolulu | Singapore |
|---|---|
| 00:00 | 18:00 |
| 01:00 | 19:00 |
| 02:00 | 20:00 |
| 03:00 | 21:00 |
| 04:00 | 22:00 |
| 05:00 | 23:00 |
| 06:00 | 00:00 |
| 07:00 | 01:00 |
| 08:00 | 02:00 |
| 09:00 | 03:00 |
| 10:00 | 04:00 |
| 11:00 | 05:00 |
| 12:00 | 06:00 |
| 13:00 | 07:00 |
| 14:00 | 08:00 |
| 15:00 | 09:00 |
| 16:00 | 10:00 |
| 17:00 | 11:00 |
| 18:00 | 12:00 |
| 19:00 | 13:00 |
| 20:00 | 14:00 |
| 21:00 | 15:00 |
| 22:00 | 16:00 |
| 23:00 | 17:00 |
Business hours 9–18 Waking hours 7–22 Night / early morning
Daylight saving time can change the difference by season. Shown values reflect the current offset.
Frequently asked questions
How many hours is the time difference between Honolulu and Singapore?
Honolulu is 18 hours behind Singapore. When it is 12:00 noon in Honolulu, it is 06:00 (next day) in Singapore.
Does daylight saving time affect the difference?
No. Neither place observes daylight saving time, so the difference stays the same all year.
What is the best time for a call or meeting?
Honolulu 15:00–18:00 = Singapore 09:00–12:00. Both cities are within business hours (9:00–18:00).
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