AEST to BST converter
BST is usually 9 h behind AEST. It is 11 h behind AEST 1 Jan–29 Mar and 25 Oct–31 Dec 2026; It is 10 h behind AEST 29 Mar–4 Apr and 3 Oct–25 Oct 2026, because of daylight saving time.
AEST to BST table
For 4 July 2026, when BST is 9 h behind AEST. Other dates: see the table on the right.
| AEST | BST |
|---|---|
| 12:00 AM | 3:00 PM prev. day |
| 1:00 AM | 4:00 PM prev. day |
| 2:00 AM | 5:00 PM prev. day |
| 3:00 AM | 6:00 PM prev. day |
| 4:00 AM | 7:00 PM prev. day |
| 5:00 AM | 8:00 PM prev. day |
| 6:00 AM | 9:00 PM prev. day |
| 7:00 AM | 10:00 PM prev. day |
| 8:00 AM | 11:00 PM prev. day |
| 9:00 AM | 12:00 AM |
| 10:00 AM | 1:00 AM |
| 11:00 AM | 2:00 AM |
| 12:00 PM | 3:00 AM |
| 1:00 PM | 4:00 AM |
| 2:00 PM | 5:00 AM |
| 3:00 PM | 6:00 AM |
| 4:00 PM | 7:00 AM |
| 5:00 PM | 8:00 AM |
| 6:00 PM | 9:00 AM |
| 7:00 PM | 10:00 AM |
| 8:00 PM | 11:00 AM |
| 9:00 PM | 12:00 PM |
| 10:00 PM | 1:00 PM |
| 11:00 PM | 2:00 PM |
When the difference changes
Computed from the IANA tz database (release 2026c). Governments can change these rules; the live converter uses your browser’s own copy of the database.
| 2026: from (UTC) | until (UTC) | BST vs AEST |
|---|---|---|
| 1 January 2026 | 29 March 2026 | 11 h behind |
| 29 March 2026 | 4 April 2026 | 10 h behind |
| 4 April 2026 | 3 October 2026 | 9 h behind |
| 3 October 2026 | 25 October 2026 | 10 h behind |
| 25 October 2026 | 31 December 2026 | 11 h behind |
| 2027: from (UTC) | until (UTC) | BST vs AEST |
|---|---|---|
| 1 January 2027 | 28 March 2027 | 11 h behind |
| 28 March 2027 | 3 April 2027 | 10 h behind |
| 3 April 2027 | 2 October 2027 | 9 h behind |
| 2 October 2027 | 31 October 2027 | 10 h behind |
| 31 October 2027 | 31 December 2027 | 11 h behind |
AEST: Australian Eastern Time · AEST time now
Queensland (Brisbane) uses AEST all year; New South Wales, Victoria, the ACT and Tasmania switch to AEDT (UTC+11) from October to April.
BST: British Summer Time · BST time now
BST only exists from late March to late October. The rest of the year the UK is on GMT. This page follows the London clock either way.
Related converters
Questions
What is the time difference between AEST and BST?
BST is usually 9 h behind AEST. It is 11 h behind AEST 1 Jan–29 Mar and 25 Oct–31 Dec 2026; It is 10 h behind AEST 29 Mar–4 Apr and 3 Oct–25 Oct 2026, because of daylight saving time.
What is 9 am AEST in BST?
9:00 am AEST is 12:00 AM BST, on dates when the usual difference applies. Use the converter above for any specific date.
Which AEST does this page use?
Queensland (Brisbane) uses AEST all year; New South Wales, Victoria, the ACT and Tasmania switch to AEDT (UTC+11) from October to April.
Which BST does this page use?
BST only exists from late March to late October. The rest of the year the UK is on GMT. This page follows the London clock either way.