HST stands for Hawaii-Aleutian Standard Time. It is always UTC-10.
HST itself never changes for daylight saving time – it is UTC-10 all year round.
United States.
In some of these countries HST is used only in part of the country or only part of the year.
A plus sign means the clock there is ahead of HST, a minus sign that it is behind. Daylight saving time is included.
| City | UTC offset | Time difference |
|---|---|---|
| New York | UTC-4 | +6 h |
| Los Angeles | UTC-7 | +3 h |
| London | UTC+0 | +10 h |
| Paris | UTC+1 | +11 h |
| Dubai | UTC+4 | +14 h |
| New Delhi | UTC+5:30 | +15 h 30 min |
| Singapore | UTC+8 | +18 h |
| Tokyo | UTC+9 | +19 h |
| Sydney | UTC+11 | +21 h |