Time difference between Singapore and Honolulu: 18 hours
Singapore
Singapore · UTC+8
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Honolulu
United States (Hawaii) · UTC-10
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Singapore is 18 hours ahead of Honolulu
Best time for a call or meeting
Singapore 09:00–12:00 = Honolulu 15:00–18:00
Both cities are within business hours (9:00–18:00).
Convert a specific time
→ Honolulu
Hour-by-hour conversion
| Singapore | Honolulu |
|---|---|
| 00:00 | 06:00 |
| 01:00 | 07:00 |
| 02:00 | 08:00 |
| 03:00 | 09:00 |
| 04:00 | 10:00 |
| 05:00 | 11:00 |
| 06:00 | 12:00 |
| 07:00 | 13:00 |
| 08:00 | 14:00 |
| 09:00 | 15:00 |
| 10:00 | 16:00 |
| 11:00 | 17:00 |
| 12:00 | 18:00 |
| 13:00 | 19:00 |
| 14:00 | 20:00 |
| 15:00 | 21:00 |
| 16:00 | 22:00 |
| 17:00 | 23:00 |
| 18:00 | 00:00 |
| 19:00 | 01:00 |
| 20:00 | 02:00 |
| 21:00 | 03:00 |
| 22:00 | 04:00 |
| 23:00 | 05:00 |
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 Singapore and Honolulu?
Singapore is 18 hours ahead of Honolulu. When it is 12:00 noon in Singapore, it is 18:00 (previous day) in Honolulu.
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?
Singapore 09:00–12:00 = Honolulu 15:00–18:00. Both cities are within business hours (9:00–18:00).
Other city pairs
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