ACDT LondonTime Converter
ACDT (UTC+10:30) is currently 9 hours 30 minutes ahead of London (BST, UTC+1). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in ACDT, it's the previous day in London.
ACDT runs 9 hours 30 minutes ahead of London (GMT/BST). A 9-to-5 workday on one side lands in the other side's evening or night, so the two cities share almost no normal working hours — edge-of-day calls are the trick.
- Time difference
- −9h 30m
- ACDT
- UTC+10:30
- London
- UTC+1
- Best call window
- Outside 9–6
ACDT to London conversion table
The next 12 hours in ACDT and the matching local time in London. The current hour is highlighted; drag the converter's slider and the table follows.
| ACDT | London · BST |
|---|---|
| NOW Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Best time to meet between ACDT & London
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
Daylight saving shifts this gap by up to 2 hours
The difference between ACDT and London swings between 10.5, 9.5 and 8.5 hours across the year as each side starts or ends daylight saving. ACDT is the daylight-saving counterpart of ACST (UTC+9:30). Clocks in London move back 1 hour to GMT (UTC±0) on Sunday, October 25, 2026. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair — every combination is a live tool, not an article.
From ACDT
To London
One source of truth — for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am ACDT time in London?", it can cite the exact, DST-aware result — not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with IANA zones and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "ACDT → London",
"url": "https://worldclock.pro/en/convert/acdt-to-london",
"from": {
"name": "ACDT",
"type": "timezone",
"abbreviation": "ACST",
"daylightAbbreviation": "ACDT",
"iana": "Australia/Adelaide",
"standardUtcOffset": "+09:30",
"daylightUtcOffset": "+10:30",
"referenceCity": "Adelaide"
},
"to": {
"name": "London",
"type": "city",
"abbreviation": "GMT",
"daylightAbbreviation": "BST",
"iana": "Europe/London",
"standardUtcOffset": "+00:00",
"daylightUtcOffset": "+01:00",
"referenceCity": "London"
},
"currentDifferenceMinutes": -570,
"possibleDifferencesMinutes": [
-630,
-570,
-510
],
"note": "Between the regions that use these zones the difference is 10.5, 9.5 and 8.5 hours across the year, depending on daylight saving on each side. The clocks on this page show the named zones themselves, which are fixed."
}
Frequently asked questions
What is the time difference between ACDT and London?
ACDT is currently 9 hours 30 minutes ahead of London. ACDT is on ACDT (UTC+10:30) and London is on BST (UTC+1). The difference can change when either side starts or ends daylight saving time.
Is London ahead of or behind ACDT?
London is currently 9 hours 30 minutes behind ACDT.
When it is 9:00 AM in ACDT, what time is it in London?
When it is 9:00 AM on a Tuesday in ACDT, it is 11:30 PM the previous day in London.
Do ACDT and London observe daylight saving time?
ACDT is the daylight-saving counterpart of ACST (UTC+9:30). Clocks in London move back 1 hour to GMT (UTC±0) on Sunday, October 25, 2026.
How do I convert ACDT time to London time?
Subtract 9 hours 30 minutes from any time in ACDT to get the time in London. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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