Time in SST and HST
The time difference between Singapore Standard Time (SST) and Hawaii–Aleutian Standard Time (HST) is 18 hours. Hawaii–Aleutian Standard Time is 18 hours behind Singapore Standard Time.
This means 9am SST is 3pm HST (previous day) and 5pm SST is 11pm HST (previous day).
Singapore Standard Time
- The current local time in SST is 3:07 pm (September 2, 2026)
- SST time zone offset is UTC+08:00
Hawaii–Aleutian Standard Time
- The current local time in HST is 5:07 pm (September 2, 2026)
- HST time zone offset is UTC-10:00
How to convert Singapore Standard Time to Hawaii–Aleutian Standard Time?
Subtract 18 hours from Singapore Standard Time to get Hawaii–Aleutian Standard Time.
Time in SST
00:00
Time in HST
00:00
Use the slider above to convert Singapore Standard Time to Hawaii–Aleutian Standard Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| SST | HST |
|---|---|
| 12am | 6am |
| 1am | 7am |
| 2am | 8am |
| 3am | 9am |
| 4am | 10am |
| 5am | 11am |
| 6am | 12pm |
| 7am | 1pm |
| 8am | 2pm |
| 9am | 3pm |
| 10am | 4pm |
| 11am | 5pm |
| 12pm | 6pm |
| 1pm | 7pm |
| 2pm | 8pm |
| 3pm | 9pm |
| 4pm | 10pm |
| 5pm | 11pm |
| 6pm | 12am |
| 7pm | 1am |
| 8pm | 2am |
| 9pm | 3am |
| 10pm | 4am |
| 11pm | 5am |