Australia/Darwin is an IANA time zone used in Australia. It stays on UTC+9:30 all year.
Australia/Darwin at a glance
Rules of the Australia/Darwin time zone
Australia/Darwin stays on UTC+9:30 all year. The tz database records no daylight saving time in this zone since 1970.
Where Australia/Darwin is used
Australia/Darwin is used in Australia. These are the largest cities in our list that follow it.
Australia/Darwin 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) | --:-- | 14 h 30 min behind | 14 h 30 min behind | 13 h 30 min behind |
| Los Angeles (United States) | --:-- | 17 h 30 min behind | 17 h 30 min behind | 16 h 30 min behind |
| London (United Kingdom) | --:-- | 9 h 30 min behind | 9 h 30 min behind | 8 h 30 min behind |
| Paris (France) | --:-- | 8 h 30 min behind | 8 h 30 min behind | 7 h 30 min behind |
| Dubai (United Arab Emirates) | --:-- | 5 h 30 min behind | 5 h 30 min behind | 5 h 30 min behind |
| Mumbai (India) | --:-- | 4 h behind | 4 h behind | 4 h behind |
| Singapore | --:-- | 1 h 30 min behind | 1 h 30 min behind | 1 h 30 min behind |
| Tokyo (Japan) | --:-- | 30 min behind | 30 min behind | 30 min behind |
| Sydney (Australia) | --:-- | 1 h 30 min ahead | 1 h 30 min ahead | 30 min ahead |
| UTC | --:-- | 9 h 30 min behind | 9 h 30 min behind | 9 h 30 min behind |
Using Australia/Darwin in software
Store and send the zone as its IANA name, Australia/Darwin, not as a fixed offset. A fixed offset such as UTC+9:30 gives the wrong result after the next clock change.
Show the current time in Australia/Darwin:
// JavaScript
new Intl.DateTimeFormat('en-GB', { timeZone: 'Australia/Darwin', timeStyle: 'long' }).format(new Date());
# Python
from datetime import datetime
from zoneinfo import ZoneInfo
datetime.now(ZoneInfo('Australia/Darwin'))
// PHP
(new DateTime('now', new DateTimeZone('Australia/Darwin')))->format('c');
# Shell
TZ=Australia/Darwin dateTools for time in Australia/Darwin
- Convert a time to or from Australia/Darwin: pick a date and time and see it in every city on your list.
- Add Darwin to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Australia/Darwin 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 Australia/Darwin?
UTC+9:30, all year.
What abbreviation does Australia/Darwin use?
ACST. Abbreviations are not unique, so use the zone name Australia/Darwin 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.