Pacific/Honolulu is an IANA time zone used in United States. It stays on UTC−10 all year.
Pacific/Honolulu at a glance
| UTC offset now | UTC−10 |
|---|---|
| Standard time | UTC−10 (HST) |
| Abbreviations | HST |
| Used in | United States |
Rules of the Pacific/Honolulu time zone
This zone has a single offset, UTC−10, with no seasonal changes recorded since 1970.
Where Pacific/Honolulu is used
Pacific/Honolulu is used in United States. These are the largest cities in our list that follow it.
Pacific/Honolulu compared with other time zones
Differences change during the year when one side moves to or from daylight saving time, so the table shows January and July separately.
| City | Time now | Difference now | In January | In July |
|---|---|---|---|---|
| New York (United States) | --:-- | 5 h ahead | 5 h ahead | 6 h ahead |
| Los Angeles (United States) | --:-- | 2 h ahead | 2 h ahead | 3 h ahead |
| London (United Kingdom) | --:-- | 10 h ahead | 10 h ahead | 11 h ahead |
| Paris (France) | --:-- | 11 h ahead | 11 h ahead | 12 h ahead |
| Dubai (United Arab Emirates) | --:-- | 14 h ahead | 14 h ahead | 14 h ahead |
| Mumbai (India) | --:-- | 15 h 30 min ahead | 15 h 30 min ahead | 15 h 30 min ahead |
| Singapore | --:-- | 18 h ahead | 18 h ahead | 18 h ahead |
| Tokyo (Japan) | --:-- | 19 h ahead | 19 h ahead | 19 h ahead |
| Sydney (Australia) | --:-- | 21 h ahead | 21 h ahead | 20 h ahead |
| UTC | --:-- | 10 h ahead | 10 h ahead | 10 h ahead |
Other zones on UTC−10 right now
These IANA zones show the same time as Pacific/Honolulu today. Their clock-change rules may differ.
Using Pacific/Honolulu in software
Store and send the zone as its IANA name, Pacific/Honolulu, not as a fixed offset. A fixed offset such as UTC−10 gives the wrong result after the next clock change.
Show the current time in Pacific/Honolulu:
// JavaScript
new Intl.DateTimeFormat('en-GB', { timeZone: 'Pacific/Honolulu', timeStyle: 'long' }).format(new Date());
# Python
from datetime import datetime
from zoneinfo import ZoneInfo
datetime.now(ZoneInfo('Pacific/Honolulu'))
// PHP
(new DateTime('now', new DateTimeZone('Pacific/Honolulu')))->format('c');
# Shell
TZ=Pacific/Honolulu date
Tools for time in Pacific/Honolulu
- Convert a time to or from Pacific/Honolulu: pick a date and time and see it in every city on your list.
- Add Honolulu to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Pacific/Honolulu and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What is the UTC offset of Pacific/Honolulu?
UTC−10, all year.
What abbreviation does Pacific/Honolulu use?
HST. Abbreviations are not unique, so use the zone name Pacific/Honolulu in software.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.