Offset
The time difference between Singapore and Honolulu is 18 hours.
Singapore (SGT) is ahead of Honolulu (HST).
SGT: UTC+8
HST: UTC-10
Neither Singapore nor Honolulu is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Singapore and Honolulu don't overlap on the same weekday. Honolulu is 18 hours behind Singapore.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Singapore
- New Year's DayThu, Jan 1
- Chinese New YearTue, Feb 17
- Chinese New YearWed, Feb 18
- Hari Raya PuasaFri, Mar 20
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Hari Raya Haji (Tentative Date)Wed, May 27
- National DayMon, Aug 10
- DeepavaliMon, Nov 9
- Christmas DayFri, Dec 25
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Singapore | Honolulu | Day |
|---|---|---|
| 12:00 am | 6:00 am | -1 day |
| 1:00 am | 7:00 am | -1 day |
| 2:00 am | 8:00 am | -1 day |
| 3:00 am | 9:00 am | -1 day |
| 4:00 am | 10:00 am | -1 day |
| 5:00 am | 11:00 am | -1 day |
| 6:00 am | 12:00 pm | -1 day |
| 7:00 am | 1:00 pm | -1 day |
| 8:00 am | 2:00 pm | -1 day |
| 9:00 am | 3:00 pm | -1 day |
| 10:00 am | 4:00 pm | -1 day |
| 11:00 am | 5:00 pm | -1 day |
| 12:00 pm | 6:00 pm | -1 day |
| 1:00 pm | 7:00 pm | -1 day |
| 2:00 pm | 8:00 pm | -1 day |
| 3:00 pm | 9:00 pm | -1 day |
| 4:00 pm | 10:00 pm | -1 day |
| 5:00 pm | 11:00 pm | -1 day |
| 6:00 pm | 12:00 am | Same day |
| 7:00 pm | 1:00 am | Same day |
| 8:00 pm | 2:00 am | Same day |
| 9:00 pm | 3:00 am | Same day |
| 10:00 pm | 4:00 am | Same day |
| 11:00 pm | 5:00 am | Same day |
Daylight saving time
Neither Singapore nor Honolulu observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:59 AM
- Sunset
- 7:10 PM
- Day length
- 12h 12m
- Sunrise
- 5:50 AM
- Sunset
- 7:13 PM
- Day length
- 13h 23m
Daylight overlap: 6h 14m — 6:59 AM–1:13 PM in Singapore (12:59 PM–7:13 PM in Honolulu). Both locations are in daylight during this window.
Airports in these zones
Airports in Singapore Time
- SIN
Airports in Hawaii Time
- HNL
Related conversions
Common conversions
- What is 9:00 am Singapore in Honolulu?
- 9:00 am Singapore is 3:00 pm Honolulu, the previous day.
- What is 12:00 pm Singapore in Honolulu?
- 12:00 pm Singapore is 6:00 pm Honolulu, the previous day.
- What is 12:30 pm Singapore in Honolulu?
- 12:30 pm Singapore is 6:30 pm Honolulu, the previous day.
- What is 2:00 pm Singapore in Honolulu?
- 2:00 pm Singapore is 8:00 pm Honolulu, the previous day.
- What is 5:00 pm Singapore in Honolulu?
- 5:00 pm Singapore is 11:00 pm Honolulu, the previous day.
- What is 11:30 pm Singapore in Honolulu?
- 11:30 pm Singapore is 5:30 am Honolulu.