Singapore to Honolulu Time Difference
Honolulu is 18 hours behind Singapore. When it is noon in Singapore, it is 18:00 in Honolulu.
Singapore (UTC+8) → Honolulu (UTC-10)
🕐 Interactive Time Explorer
When it's 18:00 in Singapore, it's 00:00 in Honolulu
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Singapore & Honolulu✓ Perfect Match (2 hours)
◐ Extended Hours (7 hours)
✈️ Travel Information
Distance
10,814 km
Est. Flight Time
~13.7h
Time Difference
-18h
Work Hours Overlap
2h
Limited
🔴 Office Closed
Today 09:00
09:00 - 11:00
⏰ Quick Conversion
06:00
Singapore
12:00
Honolulu (-1)
09:00
Singapore
15:00
Honolulu (-1)
12:00
Singapore
18:00
Honolulu (-1)
15:00
Singapore
21:00
Honolulu (-1)
18:00
Singapore
00:00
Honolulu
21:00
Singapore
03:00
Honolulu
00:00
Singapore
06:00
Honolulu (-1)
03:00
Singapore
09:00
Honolulu (-1)
Frequently Asked Questions
How many hours is Singapore ahead of Honolulu?
Honolulu is 18 hours behind Singapore. When it is 12:00 noon in Singapore, it is 18:00 in Honolulu. Singapore operates on Asia/Singapore (UTC+8), while Honolulu uses Pacific/Honolulu (UTC-10).
What is the best time to call Honolulu from Singapore?
There are 2 hours of overlapping business time (9 AM–5 PM) between Singapore and Honolulu. The best window is 09:00–11:00 Singapore time (15:00–17:00 in Honolulu).
Does the Singapore to Honolulu time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Singapore and Honolulu
The distance between Singapore and Honolulu is approximately 10,814 km. A direct flight typically takes around 13.7 hours. Your arrival clock will show local Honolulu time — use our Flight Time Calculator to predict exact arrival times.