See the live UTC time next to the current time in Adelaide, check today's real offset, and roll through any UTC time to find the matching ACST/ACDT time — including when the two zones fall on different dates.
South Australian Time
Coordinated Universal Time
US Eastern Time
THE CLOCKS ABOVE ALWAYS SHOW THE LIVE CURRENT TIME. THE ROLLER BELOW IS A LOOKUP TOOL — ROTATING IT NEVER CHANGES THEM.
UTC reference date: Sat, 03 Oct 2026. The roller wraps within this date.
Offsets below apply to the selected time.
Sun, 04 Oct 2026
Sat, 03 Oct 2026
Sat, 03 Oct 2026
ACST/ACDT is 10 hours 30 minutes ahead of UTC
ET is 4 hours behind UTC
Australia (Adelaide) is 14 hours 30 minutes ahead of United States (Eastern)
This hourly table is for today in UTC. Use the converter above to choose a different date or an exact minute.
| UTC | ACST/ACDT | Local date |
|---|---|---|
| 00:00 | 09:30 | Sat, 03 Oct 2026Same day |
| 01:00 | 10:30 | Sat, 03 Oct 2026Same day |
| 02:00 | 11:30 | Sat, 03 Oct 2026Same day |
| 03:00 | 12:30 | Sat, 03 Oct 2026Same day |
| 04:00 | 13:30 | Sat, 03 Oct 2026Same day |
| 05:00 | 14:30 | Sat, 03 Oct 2026Same day |
| 06:00 | 15:30 | Sat, 03 Oct 2026Same day |
| 07:00 | 16:30 | Sat, 03 Oct 2026Same day |
| 08:00 | 17:30 | Sat, 03 Oct 2026Same day |
| 09:00 | 18:30 | Sat, 03 Oct 2026Same day |
| 10:00 | 19:30 | Sat, 03 Oct 2026Same day |
| 11:00 | 20:30 | Sat, 03 Oct 2026Same day |
| 12:00 | 21:30 | Sat, 03 Oct 2026Same day |
| 13:00 | 22:30 | Sat, 03 Oct 2026Same day |
| 14:00 | 23:30 | Sat, 03 Oct 2026Same day |
| 15:00 | 00:30 | Sun, 04 Oct 2026Next day in Adelaide |
| 16:00 | 01:30 | Sun, 04 Oct 2026Next day in Adelaide |
| 17:00 | 03:30 | Sun, 04 Oct 2026Next day in Adelaide |
| 18:00 | 04:30 | Sun, 04 Oct 2026Next day in Adelaide |
| 19:00 | 05:30 | Sun, 04 Oct 2026Next day in Adelaide |
| 20:00 | 06:30 | Sun, 04 Oct 2026Next day in Adelaide |
| 21:00 | 07:30 | Sun, 04 Oct 2026Next day in Adelaide |
| 22:00 | 08:30 | Sun, 04 Oct 2026Next day in Adelaide |
| 23:00 | 09:30 | Sun, 04 Oct 2026Next day in Adelaide |
Coordinated Universal Time (UTC) is the world's time standard: it never shifts for seasons and every other zone is described as an offset from it. South Australian Time (ACST/ACDT) is the clock used in Adelaide. Converting UTC to ACST/ACDT means adding that offset to the UTC reading.
South Australia's half-hour offset differs from Sydney. Adelaide also changes seasonally, so use the conversion date rather than a fixed difference.
Take the UTC time, apply the ACST/ACDT offset at that specific date and time, and roll the date forward or back if the result crosses midnight. The interactive roller does all three steps for you: UTC is in the middle, ACST/ACDT is on the left and the second selected location is on the right, and a day badge appears whenever the local date differs.
Because ACST/ACDT observes daylight saving time, the gap to UTC is not fixed — every clock and table on this page is calculated live from the Australia/Adelaide IANA database, and the selected result uses the offset for its selected UTC instant.
The reference table below the tool lists every UTC hour against the matching ACST/ACDT time for today, so you can copy a conversion without touching the roller.
Adelaide uses UTC +09:30 in standard time and UTC +10:30 during daylight saving time.