HST is UTC-10, 10 hours behind UTC. It stands for Hawaii-Aleutian Standard Time.
HST stands for Hawaii-Aleutian Standard Time and is UTC-10, which is 10 hours behind UTC.
The places that use HST do not change their clocks for daylight saving time, so the offset stays UTC-10 all year.
Cities that use HST: Honolulu.
| When it is… | 9:00 AM HST | 12:00 PM HST | 5:00 PM HST |
|---|---|---|---|
| UTC | 7:00 PM | 10:00 PM | 3:00 AM (+1 day) |
| PST (Pacific) | 11:00 AM | 2:00 PM | 7:00 PM |
| MST (Mountain) | 12:00 PM | 3:00 PM | 8:00 PM |
| CST (Central US) | 1:00 PM | 4:00 PM | 9:00 PM |
| EST (Eastern) | 2:00 PM | 5:00 PM | 10:00 PM |
| CET (Central Europe) | 8:00 PM | 11:00 PM | 4:00 AM (+1 day) |
| EET (Eastern Europe) | 9:00 PM | 12:00 AM (+1 day) | 5:00 AM (+1 day) |
| IST (India) | 12:30 AM (+1 day) | 3:30 AM (+1 day) | 8:30 AM (+1 day) |
| JST (Japan) | 4:00 AM (+1 day) | 7:00 AM (+1 day) | 12:00 PM (+1 day) |
| AEST (Sydney) | 5:00 AM (+1 day) | 8:00 AM (+1 day) | 1:00 PM (+1 day) |
HST stands for Hawaii-Aleutian Standard Time.
HST is UTC-10.