BST to AEDT
+10hBST
BSTSOURCEAEDT
AEDTGreen rows indicate typical business hours (9 AM - 5 PM)
BST and AEDT on the World Map
The map below highlights the BST (British Summer Time) and AEDT (Australian Eastern Daylight Time) timezone regions across the globe.
BST – British Summer Time
UTC+01:00British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.
- •BST runs from the last Sunday in March to the last Sunday in October.
- •BST is exactly one hour ahead of GMT, the UK's standard time.
- •During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
- •The Isle of Man and the Channel Islands also observe BST.
AEDT – Australian Eastern Daylight Time
UTC+11:00Australian Eastern Daylight Time (AEDT, UTC+11:00) is the daylight saving period in south-eastern Australia, from October to April.
- •AEDT runs from the first Sunday in October to the first Sunday in April.
- •AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
- •Queensland does not observe daylight saving, so Brisbane stays on AEST.
- •During AEDT, Sydney is 16 hours ahead of New York and 11 hours ahead of UTC.
Comparing Time Zones: BST and AEDT
BST runs on British Summer Time (BST) at UTC+01:00. AEDT runs on Australian Eastern Daylight Time (AEDT) at UTC+11:00. That puts BST 10 hours ahead of AEDT — a difference of +10h at the current offsets.
In practice, when it is 9:00 AM in BST it is 7:00 PM in AEDT. Midnight in BST is 10:00 AM in AEDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
BST to AEDT time conversion table
| BST (BST) | AEDT (AEDT) | Day |
|---|---|---|
| 12:00 AM | 10:00 AM | same day |
| 6:00 AM | 4:00 PM | same day |
| 7:00 AM | 5:00 PM | same day |
| 8:00 AM | 6:00 PM | same day |
| 9:00 AM | 7:00 PM | same day |
| 12:00 PM | 10:00 PM | same day |
| 3:00 PM | 1:00 AM | next day |
| 5:00 PM | 3:00 AM | next day |
| 6:00 PM | 4:00 AM | next day |
| 9:00 PM | 7:00 AM | next day |
Why people convert BST to AEDT time
- Scheduling a call from BST to AEDT: a 10:00 AM start in BST lands at 8:00 PM in AEDT, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +10h gap: BST and AEDT have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in AEDT is 7:00 PM in BST.
- Watching a live event or market open: BST viewers need 7:00 PM in AEDT to catch a 9:00 AM start there, and 2:00 PM if the event is anchored to BST.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a +10h gap is not.
- With a +10h gap there is no shared 9-to-5 window, so alternate the early start: one week BST takes the early slot, the next week AEDT does.
About BST (British Summer Time)
British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.
About AEDT (Australian Eastern Daylight Time)
Australian Eastern Daylight Time (AEDT) is the daylight saving period in south-eastern Australia, one hour ahead of Australian Eastern Standard Time (AEST, UTC+10:00). Because Australia is in the southern hemisphere, AEDT runs through the summer — from the first Sunday in October to the first Sunday in April — which is almost exactly the reverse of the European and North American schedules. New South Wales, Victoria, Tasmania and the Australian Capital Territory observe it; Queensland and the Northern Territory do not, so Brisbane stays on AEST year round while Sydney moves to AEDT. During AEDT, Sydney is 11 hours ahead of UTC and 16 hours ahead of New York.
Best time to call between BST and AEDT
With a +10h offset there is no overlap inside a normal 9 AM – 5 PM day. AEDT opens at 9:00 AM AEDT, which is 7:00 PM in BST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
BST and AEDT have no shared working hours because of the +10h gap. Teams need to alternate early starts or rely on asynchronous handovers.
BST is 10 hours ahead of AEDT (BST UTC+01:00 → AEDT UTC+11:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
BST
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
AEDT
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
⚠ These locations are currently in different DST states, so the time difference may change when clocks adjust.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between BST and AEDT?
BST (BST, UTC+01:00) is 10 hours ahead of AEDT (AEDT, UTC+11:00). The gap is currently +10h.
How do I convert BST time to AEDT time?
Add +10h to BST local time. For example, 9:00 AM in BST is 7:00 PM in AEDT.
What time is it in AEDT right now?
AEDT uses AEDT at UTC+11:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +10h offset from BST.
What is the best time to call AEDT from BST?
There is no shared working-hours window because of the +10h gap. The closest option is 1:00 PM in BST, which is 11:00 PM in AEDT.
Which is ahead, BST or AEDT?
BST is 10 hours ahead of AEDT. When it is 12:00 PM in BST it is 10:00 PM in AEDT.
Does daylight saving time affect the BST–AEDT difference?
Neither zone observes daylight saving time, so the +10h offset between BST and AEDT is fixed all year.
Which other cities share BST's time zone?
BST also covers London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool and 2 more.
Which countries use BST, BST's zone?
BST is used in United Kingdom.
Is there a day difference between BST and AEDT?
Not normally. The +10h gap only pushes the date over for late-evening times.
What is the time difference between BST and AEDT?
AEDT is +10h from BST.
What timezone is BST in?
BST operates on its local timezone.
What timezone is AEDT in?
AEDT operates on its local timezone.
Which countries use BST (British Summer Time)?
BST is used in United Kingdom.
Does BST observe daylight saving time?
Yes, BST switches to BST during summer months.
What are some interesting facts about BST?
BST runs from the last Sunday in March to the last Sunday in October. BST is exactly one hour ahead of GMT, the UK's standard time.
Which cities are in the AEDT timezone?
Major cities in the AEDT timezone include Sydney, Melbourne, Canberra, Hobart, Newcastle.
What is the UTC offset for AEDT?
Australian Eastern Daylight Time (AEDT) is at UTC+11:00. During daylight saving time, it shifts to AEDT.
What should I know about the AEDT timezone?
AEDT runs from the first Sunday in October to the first Sunday in April. AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
When is it midnight in BST, what time is it in AEDT?
When it is 12:00 AM (midnight) in BST (BST), it is +10h later in AEDT (AEDT).
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