SGT to HST Time Converter
HST is 18 hours behind SGT right now. 9:00 AM in SGT is 3:00 PM in HST (the day before).
Time now: SGT and HST
HST is 18 hours behind SGT right now. The gap stays the same all year, because neither changes its clocks.
SGT to HST conversion table
Every hour of the day, using today's time difference.
| SGT | HST |
|---|---|
| 12:00 AM | 6:00 AMprevious day |
| 1:00 AM | 7:00 AMprevious day |
| 2:00 AM | 8:00 AMprevious day |
| 3:00 AM | 9:00 AMprevious day |
| 4:00 AM | 10:00 AMprevious day |
| 5:00 AM | 11:00 AMprevious day |
| 6:00 AM | 12:00 PMprevious day |
| 7:00 AM | 1:00 PMprevious day |
| 8:00 AM | 2:00 PMprevious day |
| 9:00 AM | 3:00 PMprevious day |
| 10:00 AM | 4:00 PMprevious day |
| 11:00 AM | 5:00 PMprevious day |
| 12:00 PM | 6:00 PMprevious day |
| 1:00 PM | 7:00 PMprevious day |
| 2:00 PM | 8:00 PMprevious day |
| 3:00 PM | 9:00 PMprevious day |
| 4:00 PM | 10:00 PMprevious day |
| 5:00 PM | 11:00 PMprevious day |
| 6:00 PM | 12:00 AM |
| 7:00 PM | 1:00 AM |
| 8:00 PM | 2:00 AM |
| 9:00 PM | 3:00 AM |
| 10:00 PM | 4:00 AM |
| 11:00 PM | 5:00 AM |
Best time to meet between SGT and HST
Working hours overlap (9 AM – 6 PM in both places):
- 9:00 AM – 12:00 PM SGT = 3:00 PM – 6:00 PM HST
Does the time difference between SGT and HST change?
No. Neither place changes its clocks, so HST is 18 hours behind SGT all year.
Office hours in each other's time
- 9 AM to 6 PM in SGT is 3:00 PM (previous day) to 12:00 AM in HST.
- 9 AM to 6 PM in HST is 3:00 AM (next day) to 12:00 PM (next day) in SGT.
Based on today's clock settings.
Frequently asked questions
What is the time difference between SGT and HST?
HST is 18 hours behind SGT right now. The gap stays the same all year, because neither changes its clocks.
How do I convert SGT to HST?
Subtract 18 hours from the SGT time to get the HST time (at today's difference). 9:00 AM in SGT is 3:00 PM in HST (the day before). Or use the converter above and pick any date and time.
What is the current time in HST?
It is 2:03 PM in HST on Monday, November 9 (the converter above shows it live). At the same moment it is 8:03 AM in SGT.
Does the time difference between SGT and HST change during the year?
No. Neither place changes its clocks, so HST is 18 hours behind SGT all year.
What is the best time for a meeting between SGT and HST?
Between 9 AM and 6 PM in both places you can meet at 9:00 AM – 12:00 PM SGT = 3:00 PM – 6:00 PM HST. Check the overlap section on this page for every option.
What does HST mean?
Hawaii does not use daylight saving time.