AWST to GMT
-8hAWST
AWSTSOURCEGMT
GMTGreen rows indicate typical business hours (9 AM - 5 PM)
AWST and GMT on the World Map
The map below highlights the AWST (Australian Western Standard Time) and GMT (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.
AWST to GMT Time Difference – Complete Guide
AWST runs on Australian Western Standard Time (AWST) at UTC+08:00. GMT runs on Greenwich Mean Time (GMT) at UTC+00:00. That puts AWST 8 hours behind GMT — a difference of -8h at the current offsets.
In practice, when it is 9:00 AM in AWST it is 1:00 AM in GMT. Midnight in AWST is 4:00 PM in GMT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
AWST to GMT time conversion table
| AWST (AWST) | GMT (GMT) | Day |
|---|---|---|
| 12:00 AM | 4:00 PM | previous day |
| 6:00 AM | 10:00 PM | previous day |
| 7:00 AM | 11:00 PM | previous day |
| 8:00 AM | 12:00 AM | same day |
| 9:00 AM | 1:00 AM | same day |
| 12:00 PM | 4:00 AM | same day |
| 3:00 PM | 7:00 AM | same day |
| 5:00 PM | 9:00 AM | same day |
| 6:00 PM | 10:00 AM | same day |
| 9:00 PM | 1:00 PM | same day |
Why people convert AWST to GMT time
- Scheduling a call from AWST to GMT: a 10:00 AM start in AWST lands at 2:00 AM in GMT, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -8h gap: AWST and GMT 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 GMT is 1:00 AM in AWST.
- Keeping family and friends in sync: knowing that 8:00 PM in AWST is 12:00 PM in GMT 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 -8h gap is not.
- With a -8h gap there is no shared 9-to-5 window, so alternate the early start: one week AWST takes the early slot, the next week GMT does.
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 GMT
With a -8h offset there is no overlap inside a normal 9 AM – 5 PM day. GMT opens at 9:00 AM GMT, which is 1:00 AM in AWST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
AWST and GMT have no shared working hours because of the -8h gap. Teams need to alternate early starts or rely on asynchronous handovers.
AWST is 8 hours behind GMT (AWST UTC+08:00 → GMT UTC+00:00). 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
AWST
Does not observe DST
GMT
☀ 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 GMT?
AWST (AWST, UTC+08:00) is 8 hours behind GMT (GMT, UTC+00:00). The gap is currently -8h.
How do I convert AWST time to GMT time?
Add -8h to AWST local time. For example, 9:00 AM in AWST is 1:00 AM in GMT.
What time is it in GMT right now?
GMT uses GMT at UTC+00:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -8h offset from AWST.
What is the best time to call GMT from AWST?
There is no shared working-hours window because of the -8h gap. The closest option is 1:00 PM in AWST, which is 5:00 AM in GMT.
Which is behind, AWST or GMT?
AWST is 8 hours behind GMT. When it is 12:00 PM in AWST it is 4:00 AM in GMT.
Does daylight saving time affect the AWST–GMT difference?
Neither zone observes daylight saving time, so the -8h offset between AWST and GMT is fixed all year.
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 GMT?
Not normally. The -8h gap only pushes the date over the previous day.
What is the time difference between AWST and GMT?
GMT is -8h from AWST.
What timezone is AWST in?
AWST operates on its local timezone.
What timezone is GMT in?
GMT operates on its local timezone.
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 GMT?
When it is 12:00 AM (midnight) in AWST (AWST), it is -8h later in GMT (GMT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More AWST time conversions
- awst to perth
- awst to new york
- awst to london
- awst to dubai
- awst to tokyo
- awst to singapore
- awst to sydney
- awst to los angeles
- awst to paris
- awst to delhi
- awst to mumbai
- awst to berlin
- awst to hong kong
- awst to toronto
- awst to kathmandu
- new york to awst
- london to awst
- dubai to awst
- tokyo to awst
- singapore to awst
- sydney to awst
- los angeles to awst
- paris to awst
- delhi to awst
- mumbai to awst
- berlin to awst
- hong kong to awst
- toronto to awst
- kathmandu to awst
See every conversion from AWST →·See every conversion from GMT →