BST to Adelaide Time Converter
ACDT is 10 hours 30 minutes ahead of GMT. 9:00 AM GMT = 7:30 PM ACDT.
ACDT is 10 hours 30 minutes ahead of GMT at the moment. To convert BST to Adelaide Time, add 10 hours 30 minutes to the BST time: 9:00 AM GMT = 7:30 PM ACDT.
BST (British Time) is used in United Kingdom from late March to late October. Adelaide Time (Adelaide time) is used in Adelaide, Australia.
BST here means British Summer Time, not Bangladesh Standard Time. BST (British Summer Time) is not in force right now: United Kingdom from late March to late October is currently on GMT. This page uses whichever name applies on the date you pick, so the numbers below say GMT.
BST to Adelaide Time time conversion table
BST to Adelaide Time on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| BST | Adelaide Time | Day |
|---|---|---|
| 12:00 AM GMT | 10:30 AM ACDT | — |
| 1:00 AM GMT | 11:30 AM ACDT | — |
| 2:00 AM GMT | 12:30 PM ACDT | — |
| 3:00 AM GMT | 1:30 PM ACDT | — |
| 4:00 AM GMT | 2:30 PM ACDT | — |
| 5:00 AM GMT | 3:30 PM ACDT | — |
| 6:00 AM GMT | 4:30 PM ACDT | — |
| 7:00 AM GMT | 5:30 PM ACDT | — |
| 8:00 AM GMT | 6:30 PM ACDT | — |
| 9:00 AM GMT | 7:30 PM ACDT | — |
| 10:00 AM GMT | 8:30 PM ACDT | — |
| 11:00 AM GMT | 9:30 PM ACDT | — |
| 12:00 PM GMT | 10:30 PM ACDT | night |
| 1:00 PM GMT | 11:30 PM ACDT | night |
| 2:00 PM GMT | 12:30 AM ACDT | next day |
| 3:00 PM GMT | 1:30 AM ACDT | next day |
| 4:00 PM GMT | 2:30 AM ACDT | next day |
| 5:00 PM GMT | 3:30 AM ACDT | next day |
| 6:00 PM GMT | 4:30 AM ACDT | next day |
| 7:00 PM GMT | 5:30 AM ACDT | next day |
| 8:00 PM GMT | 6:30 AM ACDT | next day |
| 9:00 PM GMT | 7:30 AM ACDT | next day |
| 10:00 PM GMT | 8:30 AM ACDT | next day |
| 11:00 PM GMT | 9:30 AM ACDT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert BST to Adelaide Time
Add 10 hours 30 minutes to the BST time to get Adelaide Time.
Example: 9:00 AM GMT = 7:30 PM ACDT.
Across midnight: 10:00 PM GMT = 8:30 AM ACDT (next day). The date changes, so always check the day as well as the hour.
Time difference between BST and Adelaide Time
The time difference between BST and Adelaide Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 28 Mar 2026: Adelaide Time is 10 hours 30 minutes ahead of BST.
- 29 Mar 2026 – 3 Apr 2026: Adelaide Time is 9 hours 30 minutes ahead of BST.
- 4 Apr 2026 – 2 Oct 2026: Adelaide Time is 8 hours 30 minutes ahead of BST.
- 3 Oct 2026 – 24 Oct 2026: Adelaide Time is 9 hours 30 minutes ahead of BST.
- 25 Oct 2026 – 31 Dec 2026: Adelaide Time is 10 hours 30 minutes ahead of BST.
BST and Adelaide Time during daylight saving time
- BST next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
- Adelaide Time next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from ACDT (UTC+10:30) to ACST (UTC+9:30).
Best time for a meeting between BST and Adelaide Time
BST and Adelaide Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GMT, which is 5:30 PM ACDT.
BST to Adelaide Time FAQ
What is the time difference between BST and Adelaide Time?
Right now ACDT is 10 hours 30 minutes ahead of GMT. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM BST in Adelaide Time?
9:00 AM GMT is 7:30 PM ACDT.
What is 12 PM (noon) BST in Adelaide Time?
12:00 PM GMT is 10:30 PM ACDT.
Is Adelaide Time ahead of or behind BST?
ACDT is 10 hours 30 minutes ahead of GMT, so it is later in Adelaide Time than in BST.
Does BST change for daylight saving time?
Yes. BST next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.
Does Adelaide Time change for daylight saving time?
Yes. Adelaide Time next changes on 4 Apr 2027, when clocks go back one hour from ACDT to ACST.
What is the best time for a meeting between BST and Adelaide Time?
BST and Adelaide Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GMT, which is 5:30 PM ACDT.
Related conversions
Convert Adelaide Time to BST
Convert BST to other time zones
Convert other time zones to Adelaide Time
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.