Convert Australian Central Time to Greenwich Mean Time
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ACST · UTC+9:30 → GMT · UTC+0
ACST is 9 hours 30 minutes ahead of GMT
Adelaide · ACDT
Wednesday, 7 October 2026
London · BST
Wednesday, 7 October 2026
When are both sides at work?Each column is one hour of the day in the first city; the second row shows the same moment in the other city. Gold means office hours (09:00–18:00), dusk means awake but off work, night means asleep (23:00–07:00). Columns where both rows are gold are good meeting times.
No overlap in standard working hours. Closest workable window: 18:30–23:00 in Adelaide, which is 09:00–13:30 in London.
Working (09–18) Awake, off the clock Asleep (23–07)
Pick a time and share it
21:53 Wed 7 Oct Adelaide = 12:23 Wed 7 Oct London
Hour-by-hour conversion
| Adelaide (ACST)Every hour of today in the first city, with the matching time in the second. “Next day” means the calendar date is already tomorrow there. The highlighted row is right now. | London (GMT) | |
|---|---|---|
| 00:00 | 14:30prev. day | |
| 01:00 | 15:30prev. day | |
| 02:00 | 16:30prev. day | |
| 03:00 | 17:30prev. day | |
| 04:00 | 18:30prev. day | |
| 05:00 | 19:30prev. day | |
| 06:00 | 20:30prev. day | |
| 07:00 | 21:30prev. day | |
| 08:00 | 22:30prev. day | |
| 09:00 | 23:30prev. day | |
| 10:00 | 00:30 | |
| 11:00 | 01:30 | |
| 12:00 | 02:30 | |
| 13:00 | 03:30 | |
| 14:00 | 04:30 | |
| 15:00 | 05:30 | |
| 16:00 | 06:30 | |
| 17:00 | 07:30 | |
| 18:00 | 08:30 | |
| 19:00 | 09:30 | |
| 20:00 | 10:30 | |
| 21:00 | 11:30 | Now |
| 22:00 | 12:30 | |
| 23:00 | 13:30 |
About this conversion
ACST here means Australian Central Time, represented by Adelaide (Australia/Adelaide), currently UTC+10:30. GMT means Greenwich Mean Time, represented by London (Europe/London), currently UTC+1.
ACST is used by 2 zones, including Australia. If you meant a different one, see every meaning of ACST.
GMT is used by 22 zones, including United Kingdom. See every meaning of GMT.
Working hours are shown as 09:00–18:00 local, and sleeping hours as 23:00–07:00. The hour table is anchored on the current day in Adelaide; day boundaries are marked where the date differs.
Quick answers
- 09:00 ACST is 23:30 GMT
- 12:00 ACST is 02:30 GMT
- 15:00 ACST is 05:30 GMT
- 18:00 ACST is 08:30 GMT
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- Time in Adelaidenow, DST, offset
- Time in Londonnow, DST, offset