Williamstown, Australia
Live local time, today's date, Australia/Adelaide details, UTC offset and practical comparisons for Williamstown.
Williamstown time facts
These values are calculated for the current instant using Australia/Adelaide.
- Time zone
- Australia/Adelaide
- Abbreviation
- ACST
- UTC offset
- UTC+09:30
- Daylight saving
- Yes · Not active now
- Country
- Australia
Sky times for Williamstown
Local sunrise, sunset, moonrise, moonset and moon shape for Saturday, September 19, 2026. Times are calculated for -34.6721, 138.8911 in Australia/Adelaide and may vary slightly with terrain and atmospheric conditions.
First Quarter
49% illuminated
Lunar age 7.3 days. Moonrise is 10:48 AM; moonset is 1:20 AM.
Moon phase detailsWilliamstown across the day
Compare Williamstown with major business centres. Hover or tap a column to follow one instant across every location.
Time difference from Williamstown
Differences below use each location's current UTC offset and can change around daylight-saving transitions.
| City | Local time | Zone | Difference |
|---|---|---|---|
| London United Kingdom | 5:58 PM | BST · UTC+01:00 | London is 8 hours 30 minutes behind Williamstown |
| New York United States | 12:58 PM | EDT · UTC-04:00 | New York is 13 hours 30 minutes behind Williamstown |
| Dubai United Arab Emirates | 8:58 PM | +04 · UTC+04:00 | Dubai is 5 hours 30 minutes behind Williamstown |
| Singapore Singapore | 12:58 AM | +08 · UTC+08:00 | Singapore is 1 hour 30 minutes behind Williamstown |
| Tokyo Japan | 1:58 AM | JST · UTC+09:00 | Tokyo is 30 minutes behind Williamstown |
| Sydney Australia | 2:58 AM | AEST · UTC+10:00 | Sydney is 30 minutes ahead Williamstown |
| Los Angeles United States | 9:58 AM | PDT · UTC-07:00 | Los Angeles is 16 hours 30 minutes behind Williamstown |
Williamstown time zone
- IANA identifier
- Australia/Adelaide
- Current abbreviation
- ACST
- Current UTC offset
- UTC+09:30
- Offsets seen in 2026
- UTC+09:30, UTC+10:30
- Abbreviations seen in 2026
- ACDT, ACST
- Daylight saving in current year
- Observed
- Next clock change
- The next detected change is Sunday, October 4, 2026: clocks move forward from ACST (UTC+09:30) to ACDT (UTC+10:30).
- Coordinates
- -34.6721, 138.8911
Time zone converter
Convert historical, current or future wall times between cities, IANA zones and UTC offsets.
Compare Williamstown with
Related places and time zones
Williamstown time questions
What time is it in Williamstown right now?
The live clock at the top shows the current time in Williamstown. At page generation it was 2:28 AM on Saturday, September 19, 2026.
What time zone is Williamstown in?
Williamstown uses the IANA time zone Australia/Adelaide. Its current abbreviation is ACST.
What is Williamstown's UTC offset?
The current UTC offset is UTC+09:30. The offset shown is calculated for the current instant rather than hardcoded.
Does Williamstown observe daylight saving time?
Yes. This zone has more than one offset in the current year.
What time is sunrise and sunset in Williamstown today?
Today's calculated sunrise is 6:08 AM and sunset is 6:08 PM local time.
What time is moonrise in Williamstown today?
Today's calculated moonrise is 10:48 AM and moonset is 1:20 AM local time.
What is the moon shape today in Williamstown?
The current phase is First Quarter, approximately 49% illuminated, with a lunar age of 7.3 days.
What is the time difference between Williamstown and London?
At this moment London is 8 hours 30 minutes behind Williamstown. The difference may change when daylight-saving rules change.
