BST to AWST Time Converter
AWST is 7 hours ahead of BST. BST is UTC+1:00, and AWST is UTC+8:00.
Best Time to Call Between BST and AWST
Both zones are inside normal business hours between 9:00 AM and 10:00 AM BST — that's 4:00 PM to 5:00 PM AWST. That's a 1-hour window.
both at work BST only AWST only neither — hours along the strip are BST.
Common Times Converted
BST on the left, AWST on the right.
BST to AWST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| BST | AWST | Working hours |
|---|---|---|
| 12:00 AM | 7:00 AM | — |
| 1:00 AM | 8:00 AM | — |
| 2:00 AM | 9:00 AM | AWST only |
| 3:00 AM | 10:00 AM | AWST only |
| 4:00 AM | 11:00 AM | AWST only |
| 5:00 AM | 12:00 PM | AWST only |
| 6:00 AM | 1:00 PM | AWST only |
| 7:00 AM | 2:00 PM | AWST only |
| 8:00 AM | 3:00 PM | AWST only |
| 9:00 AM | 4:00 PM | Both zones |
| 10:00 AM | 5:00 PM | BST only |
| 11:00 AM | 6:00 PM | BST only |
| 12:00 PM | 7:00 PM | BST only |
| 1:00 PM | 8:00 PM | BST only |
| 2:00 PM | 9:00 PM | BST only |
| 3:00 PM | 10:00 PM | BST only |
| 4:00 PM | 11:00 PM | BST only |
| 5:00 PM | 12:00 AM next day | — |
| 6:00 PM | 1:00 AM next day | — |
| 7:00 PM | 2:00 AM next day | — |
| 8:00 PM | 3:00 AM next day | — |
| 9:00 PM | 4:00 AM next day | — |
| 10:00 PM | 5:00 AM next day | — |
| 11:00 PM | 6:00 AM next day | — |
What BST and AWST Actually Are
BST — British Summer Time
London, Manchester, Birmingham, Glasgow, and the rest of the UK from late March to late October. Standing at UTC+1:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, October 25, 2026, to GMT. BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.
British Summer Time began in 1916 as a wartime fuel-saving measure and has run every year since, making it one of the oldest continuous daylight saving schemes in the world.
AWST — Australian Western Standard Time
Perth. Standing at UTC+8:00 as written, and the region does not change its clocks, so that offset holds all year. Western Australia does not observe daylight saving, so Perth stays on UTC+8 all year.
Western Australia has held four referendums on daylight saving and rejected it every time, most recently in 2009.
What This Means in Practice
This gap is not fixed
BST changes its clocks and AWST does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, October 25, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on BST
Cities on AWST
Frequently Asked Questions
What is the time difference between BST and AWST?
AWST is 7 hours ahead of BST.
What is 9:00 AM BST in AWST?
9:00 AM BST is 4:00 PM AWST.
What are the best hours to schedule a call between BST and AWST?
Between 9:00 AM and 10:00 AM BST, which is 4:00 PM to 5:00 PM AWST. Both sides are inside normal business hours through that window.
Does the difference between BST and AWST change during the year?
Yes. BST observes daylight saving and AWST does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, October 25, 2026.
Does BST always mean British Summer Time?
BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.
Does AWST always mean Australian Western Standard Time?
Western Australia does not observe daylight saving, so Perth stays on UTC+8 all year.