The short answer

8pm in Adelaide is 11:30am in Greenwich Mean Time.

Adelaide is 8 hours 30 minutes ahead of Greenwich Mean Time. It falls outside the 9-to-5 in Adelaide but lands inside working hours in Greenwich Mean Time.

Adelaide
8pm
Greenwich Mean Time
11:30am
Right now
1:03pmACST · UTC+09:30 · Sat, Jun 27
4:33amBST · UTC+01:00 · Sat, Jun 27
Read across to convert
Adelaide
ACST · UTC+09:30
1:03pm ☀
Greenwich Mean Time
BST · UTC+01:00
4:33am ☾
Pinned8pmAdelaide=11:30amGreenwich Mean Time
12amSat
3:30pmFri ·−1d
WORK
1am
4:30pmFri ·−1d
WORK
2am
5:30pmFri ·−1d
3am
6:30pmFri ·−1d
4am
7:30pmFri ·−1d
5am
8:30pmFri ·−1d
6am
9:30pmFri ·−1d
7am
10:30pmFri ·−1d
8am
11:30pmFri ·−1d
9am
WORK
12:30amSat
10am
WORK
1:30am
11am
WORK
2:30am
12pm
WORK
3:30am
NOW
1pm
WORK
4:30am
2pm
WORK
5:30am
3pm
WORK
6:30am
4pm
WORK
7:30am
5pm
8:30am
6pm
9:30am
WORK
7pm
10:30am
WORK
PINNED
8pm
11:30am
WORK
9pm
12:30pm
WORK
10pm
1:30pm
WORK
11pm
2:30pm
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Adelaide
4pm–7pm
=
Greenwich Mean Time
7:30am–10:30am
Popular conversions

Quick reference.

9amAdelaide=12:30amGreenwich Mean Time
12pmAdelaide=3:30amGreenwich Mean Time
3pmAdelaide=6:30amGreenwich Mean Time
5pmAdelaide=8:30amGreenwich Mean Time
9pmAdelaide=12:30pmGreenwich Mean Time
In context

What each side covers.

Adelaide
ACST · UTC+09:30
1:03pm

Australia

Greenwich Mean Time
BST · UTC+01:00
4:33am
Cities on this clock

Frequently asked

Quick answers about converting between Adelaide and Greenwich Mean Time. Can't find what you need? Email [email protected].

What is the time difference between Adelaide and Greenwich Mean Time?
Adelaide is 8 hours 30 minutes ahead of Greenwich Mean Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 8pm in Adelaide, what time is it in Greenwich Mean Time?
8pm in Adelaide is 11:30am in Greenwich Mean Time. It falls outside the 9-to-5 in Adelaide but lands inside working hours in Greenwich Mean Time. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Adelaide and Greenwich Mean Time?
There's no comfortable 9-to-5 overlap between Adelaide and Greenwich Mean Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — ACST and BST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.