AWST to London
-7hAWST
AWSTSOURCELondon
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
AWST and BST on the World Map
The map below highlights the AWST (Australian Western Standard Time) and BST (Greenwich Mean Time) timezone regions across the globe.
AWST – Australian Western Standard Time
UTC+08:00Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.
- •Western Australia does not observe daylight saving time.
- •Perth is the most isolated major city in the world.
- •AWST is the same offset as China Standard Time and Singapore Time.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
About London
WikipediaLondon, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
Big Ben is actually the name of the bell inside the Elizabeth Tower, not the tower itself.
Comparing Time Zones: AWST and London
AWST runs on Australian Western Standard Time (AWST) at UTC+08:00. London runs on British Summer Time (BST) at UTC+01:00, also currently on daylight saving time. That puts AWST 7 hours behind London — a difference of -7h at the current offsets.
In practice, when it is 9:00 AM in AWST it is 2:00 AM in London. Midnight in AWST is 5:00 PM in London.London observes daylight saving time while AWST does not, so the gap narrows or widens by an hour part of the year.
AWST to London time conversion table
| AWST (AWST) | London (BST) | Day |
|---|---|---|
| 12:00 AM | 5:00 PM | previous day |
| 6:00 AM | 11:00 PM | previous day |
| 7:00 AM | 12:00 AM | same day |
| 8:00 AM | 1:00 AM | same day |
| 9:00 AM | 2:00 AM | same day |
| 12:00 PM | 5:00 AM | same day |
| 3:00 PM | 8:00 AM | same day |
| 5:00 PM | 10:00 AM | same day |
| 6:00 PM | 11:00 AM | same day |
| 9:00 PM | 2:00 PM | same day |
Why people convert AWST to London time
- Scheduling a call from AWST to London: a 10:00 AM start in AWST lands at 3:00 AM in London, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both AWST and London are inside the 9-to-5 working day between 4:00 PM and 5:00 PM AWST time (9:00 AM–10:00 AM BST). That is roughly 1 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in AWST is 1:00 PM in London makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM AWST" is unambiguous; "3 PM" across a -7h gap is not.
- Block 4:00 PM–5:00 PM AWST as the recurring meeting window if you work primarily from AWST and need London colleagues present.
- London: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
About AWST (Australian Western Standard Time)
Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
Best time to call between AWST and London
Both AWST and London sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM AWST, which is 9:00 AM–10:00 AM BST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
AWST and London overlap for only 60 minutes (4:00 PM–5:00 PM AWST), so meetings have to be booked precisely.
AWST is 7 hours behind London (AWST UTC+08:00 → BST UTC+01:00). The shared working window is 4:00 PM–5:00 PM AWST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
AWST
Does not observe DST
London
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
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 AWST and London?
AWST (AWST, UTC+08:00) is 7 hours behind London (BST, UTC+01:00). The gap is currently -7h.
How do I convert AWST time to London time?
Add -7h to AWST local time. For example, 9:00 AM in AWST is 2:00 AM in London.
What time is it in London right now?
London uses BST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -7h offset from AWST.
What is the best time to call London from AWST?
Call between 4:00 PM and 5:00 PM AWST — that maps to 9:00 AM–10:00 AM BST and keeps both parties inside the working day.
Which is behind, AWST or London?
AWST is 7 hours behind London. When it is 12:00 PM in AWST it is 5:00 AM in London.
Do AWST and London use different time zones?
AWST uses AWST at UTC+08:00, while London (UK) uses BST at UTC+01:00. The IANA identifiers are Australia/Perth and Europe/London.
Does daylight saving time affect the AWST–London difference?
Yes at the moment: London is on daylight saving time and AWST is not, so the -7h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share AWST's time zone?
AWST also covers Perth, Mandurah, Bunbury, Geraldton.
Which countries use AWST, AWST's zone?
AWST is used in Australia (Western Australia).
Is there a day difference between AWST and London?
Not normally. The -7h gap only pushes the date over the previous day.
What is the time difference between AWST and London?
London is -7h from AWST.
What timezone is AWST in?
AWST operates on its local timezone.
What timezone is London in?
London, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
What are the business hours in London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
Which countries use AWST (Australian Western Standard Time)?
AWST is used in Australia (Western Australia).
Does AWST observe daylight saving time?
No, AWST does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about AWST?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
When is it midnight in AWST, what time is it in London?
When it is 12:00 AM (midnight) in AWST (AWST), it is -7h later in London (GMT).
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