Adelaide Time to BST Converter
GMT is 10 hours 30 minutes behind ACDT. 9:00 AM ACDT = 10:30 PM GMT (previous day).
GMT is 10 hours 30 minutes behind ACDT at the moment. To convert Adelaide Time to BST, subtract 10 hours 30 minutes from the Adelaide Time time: 9:00 AM ACDT = 10:30 PM GMT (previous day).
Adelaide Time (Adelaide time) is used in Adelaide, Australia. BST (British Time) is used in United Kingdom from late March to late October.
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.
Adelaide Time to BST time conversion table
Adelaide Time to BST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Adelaide Time | BST | Day |
|---|---|---|
| 12:00 AM ACDT | 1:30 PM GMT | previous day |
| 1:00 AM ACDT | 2:30 PM GMT | previous day |
| 2:00 AM ACDT | 3:30 PM GMT | previous day |
| 3:00 AM ACDT | 4:30 PM GMT | previous day |
| 4:00 AM ACDT | 5:30 PM GMT | previous day |
| 5:00 AM ACDT | 6:30 PM GMT | previous day |
| 6:00 AM ACDT | 7:30 PM GMT | previous day |
| 7:00 AM ACDT | 8:30 PM GMT | previous day |
| 8:00 AM ACDT | 9:30 PM GMT | previous day |
| 9:00 AM ACDT | 10:30 PM GMT | previous day |
| 10:00 AM ACDT | 11:30 PM GMT | previous day |
| 11:00 AM ACDT | 12:30 AM GMT | night |
| 12:00 PM ACDT | 1:30 AM GMT | night |
| 1:00 PM ACDT | 2:30 AM GMT | night |
| 2:00 PM ACDT | 3:30 AM GMT | night |
| 3:00 PM ACDT | 4:30 AM GMT | night |
| 4:00 PM ACDT | 5:30 AM GMT | night |
| 5:00 PM ACDT | 6:30 AM GMT | — |
| 6:00 PM ACDT | 7:30 AM GMT | — |
| 7:00 PM ACDT | 8:30 AM GMT | — |
| 8:00 PM ACDT | 9:30 AM GMT | — |
| 9:00 PM ACDT | 10:30 AM GMT | — |
| 10:00 PM ACDT | 11:30 AM GMT | — |
| 11:00 PM ACDT | 12:30 PM GMT | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Adelaide Time to BST
Subtract 10 hours 30 minutes from the Adelaide Time time to get BST.
Example: 9:00 AM ACDT = 10:30 PM GMT (previous day).
Across midnight: 1:00 AM ACDT = 2:30 PM GMT (previous day). The date changes, so always check the day as well as the hour.
Time difference between Adelaide Time and BST
The time difference between Adelaide Time and BST 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: BST is 10 hours 30 minutes behind of Adelaide Time.
- 29 Mar 2026 – 4 Apr 2026: BST is 9 hours 30 minutes behind of Adelaide Time.
- 5 Apr 2026 – 3 Oct 2026: BST is 8 hours 30 minutes behind of Adelaide Time.
- 4 Oct 2026 – 24 Oct 2026: BST is 9 hours 30 minutes behind of Adelaide Time.
- 25 Oct 2026 – 31 Dec 2026: BST is 10 hours 30 minutes behind of Adelaide Time.
Adelaide Time and BST during daylight saving time
- 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).
- 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).
Best time for a meeting between Adelaide Time and BST
Adelaide Time and BST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM ACDT, which is 8:30 PM GMT.
Adelaide Time to BST FAQ
What is the time difference between Adelaide Time and BST?
Right now GMT is 10 hours 30 minutes behind ACDT. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Adelaide Time in BST?
9:00 AM ACDT is 10:30 PM GMT (previous day).
What is 12 PM (noon) Adelaide Time in BST?
12:00 PM ACDT is 1:30 AM GMT.
Is BST ahead of or behind Adelaide Time?
GMT is 10 hours 30 minutes behind ACDT, so it is earlier in BST than in Adelaide Time.
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.
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.
What is the best time for a meeting between Adelaide Time and BST?
Adelaide Time and BST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM ACDT, which is 8:30 PM GMT.
Related conversions
Convert BST to Adelaide Time
Convert Adelaide Time to other time zones
Convert other time zones to BST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.