Sydney to BST time conversion
BST is 10 hours behind Sydney. After the next clock change (): BST is 9 hours behind Sydney.
Time difference with your location
Sydney is 11 hours ahead of UTC. Compare with your local time →
Choose a date and time
Choose the local time in Sydney to convert it to BST on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · Sydney → BST
This table converts each hour in Sydney to BST on 2026-10-22.
- Working hours
- Outside working hours
- Night hours
| Sydney | BST | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 14:002:00 PM -1 day | |
| 01:001:00 AM | 15:003:00 PM -1 day | |
| 02:002:00 AM | 16:004:00 PM -1 day | |
| 03:003:00 AM | 17:005:00 PM -1 day | |
| 04:004:00 AM | 18:006:00 PM -1 day | |
| 05:005:00 AM | 19:007:00 PM -1 day | |
| 06:006:00 AM | 20:008:00 PM -1 day | |
| 07:007:00 AM | 21:009:00 PM -1 day | |
| 08:008:00 AM | 22:0010:00 PM -1 day | |
| 09:009:00 AM | 23:0011:00 PM -1 day | |
| 10:0010:00 AM | 00:0012:00 AM | |
| 11:0011:00 AM | 01:001:00 AM | |
| 12:0012:00 PM | 02:002:00 AM | |
| 13:001:00 PM | 03:003:00 AM | |
| 14:002:00 PM | 04:004:00 AM | |
| 15:003:00 PM | 05:005:00 AM | |
| 16:004:00 PM | 06:006:00 AM | |
| 17:005:00 PM | 07:007:00 AM | |
| 18:006:00 PM | 08:008:00 AM | |
| 19:007:00 PM | 09:009:00 AM | |
| 20:008:00 PM | 10:0010:00 AM | |
| 21:009:00 PM | 11:0011:00 AM | |
| 22:0010:00 PM | 12:0012:00 PM | |
| 23:0011:00 PM | 13:001:00 PM |
Quick conversion examples
These examples use Sydney (UTC+11) and BST (UTC+1); choosing a date applies the local clock changes.
Conversion formula: BST = Sydney − 10h · GMT = Sydney − 11h · Sydney − 9h.
| Sydney | BST |
|---|---|
| 6:00 AM Sydney | = 8:00 PM BST (-1 day) |
| 7:00 AM Sydney | = 9:00 PM BST (-1 day) |
| 8:00 AM Sydney | = 10:00 PM BST (-1 day) |
| 9:00 AM Sydney | = 11:00 PM BST (-1 day) |
| 10:00 AM Sydney | = 12:00 AM BST |
| 12:00 PM Sydney | = 2:00 AM BST |
| 3:00 PM Sydney | = 5:00 AM BST |
| 5:00 PM Sydney | = 7:00 AM BST |
| 6:00 PM Sydney | = 8:00 AM BST |
| 8:00 PM Sydney | = 10:00 AM BST |
Overlapping meeting hours
The 08:00–18:00 working days in Sydney and BST do not overlap on 2026-10-22.
Clock changes on both sides, 2026–2028
Sydney and BST have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | Sydney | BST |
|---|---|---|
| 2026 | · 03:00 → 02:00 · 02:00 → 03:00 | · 01:00 → 02:00 · 02:00 → 01:00 |
| 2027 | · 03:00 → 02:00 · 02:00 → 03:00 | · 01:00 → 02:00 · 02:00 → 01:00 |
| 2028 | · 03:00 → 02:00 · 02:00 → 03:00 | · 01:00 → 02:00 · 02:00 → 01:00 |
At the start of 2026, GMT is 11 hours behind Sydney. The difference changes during the following periods.
- From 2026-03-29 12:00 Sydney until 2026-04-05 02:00 Sydney, BST is 10 hours behind Sydney.
- From 2026-04-05 02:00 Sydney until 2026-10-04 03:00 Sydney, BST is 9 hours behind Sydney.
- From 2026-10-04 03:00 Sydney until 2026-10-25 12:00 Sydney, BST is 10 hours behind Sydney.
- From 2027-03-28 12:00 Sydney until 2027-04-04 02:00 Sydney, BST is 10 hours behind Sydney.
- From 2027-04-04 02:00 Sydney until 2027-10-03 03:00 Sydney, BST is 9 hours behind Sydney.
- From 2027-10-03 03:00 Sydney until 2027-10-31 12:00 Sydney, BST is 10 hours behind Sydney.
- From 2028-03-26 12:00 Sydney until 2028-04-02 02:00 Sydney, BST is 10 hours behind Sydney.
- From 2028-04-02 02:00 Sydney until 2028-10-01 03:00 Sydney, BST is 9 hours behind Sydney.
- From 2028-10-01 03:00 Sydney until 2028-10-29 12:00 Sydney, BST is 10 hours behind Sydney.
Frequently asked questions
What time is 9 AM Sydney in BST?
9:00 AM Sydney = 11:00 PM BST (-1 day), using UTC+11 and UTC+1. Choose a date above for the seasonal local time.
Does the time difference between Sydney and BST change during the year?
Yes. During 2026–2028: BST is 11 hours behind Sydney; BST is 10 hours behind Sydney; BST is 9 hours behind Sydney. The clock-change table gives the dates for both sides.
How do I tell whether it is day or night in BST?
Read the UTC+1 clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between Sydney and BST?
The 08:00–18:00 working days in Sydney and BST do not overlap.
What is the time difference between Sydney and BST now?
Right now, UTC+1 is 10 hours behind Sydney. Conversion formula: BST = Sydney − 10h · GMT = Sydney − 11h · Sydney − 9h.