London to Perth Time
GMT to AWST Converter — 9 AM GMT is 5:00 PM AWST
London is 8 hours behind Perth. Convert any time between London (GMT/BST) and Perth (AWST) instantly.
London
United Kingdom
Perth
Australia
Add Time Zones to Compare
Time Zone Comparison
London to Perth Time Conversion Table
| London (GMT) | Perth (AWST) |
|---|---|
| 12:00 AM | 7:00 AM |
| 2:00 AM | 9:00 AM |
| 4:00 AM | 11:00 AM |
| 6:00 AM | 1:00 PM |
| 8:00 AM | 3:00 PM |
| 10:00 AM | 5:00 PM |
| 12:00 PM | 7:00 PM |
| 2:00 PM | 9:00 PM |
| 4:00 PM | 11:00 PM |
| 6:00 PM | 1:00 AM |
| 8:00 PM | 3:00 AM |
| 10:00 PM | 5:00 AM |
London & Perth — Business & Scheduling Guide
London (United Kingdom) is a leading center for finance and international trade, with key industries in finance, insurance, media, and professional services. Perth (Australia) is a stable, resource-rich economy in the Asia-Pacific region, known for mining, agriculture, finance, and tourism. With a 8-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.
Scheduling Meetings Between London and Perth
The 8-hour difference between London and Perth requires careful scheduling. The best overlap window is typically 2–4 hours when both cities are within working hours. British business culture values politeness and punctuality, with typical hours of 9 AM–5:30 PM. Australian work culture values work-life balance, with typical hours of 9 AM–5 PM and flexible arrangements common. Teams often designate specific "overlap hours" for real-time collaboration and use asynchronous communication (Slack, email, recorded video) for the rest of the day.
Daylight Saving Time Considerations
London observes Daylight Saving Time (GMT/BST), but Perth does not — it stays on AWST year-round. This means the time difference between London and Perth changes by 1 hour when London switches clocks. During United Kingdom's summer, the gap is 7–9 hours instead of the standard 8 hours. Mark DST transition dates on your calendar to avoid missed meetings.
GMT to AWST — Quick Reference
GMT (GMT/BST) stands for the timezone used in London, United Kingdom (UTC+0). AWST (AWST) is the timezone used in Perth, Australia (UTC+8). London is 8 hours behind Perth.
To convert GMT to AWST, add 8 hours to GMT time. For example, GMT 9:00 AM = AWST 5:00 PM.
Key Facts
- •Time difference: London (UTC+0) is 8 hours behind Perth (UTC+8).
- •Daylight Saving Time: London observes DST (GMT/BST). Perth does not observe DST (AWST).
- •Regions: London is located in United Kingdom and uses the GMT/BST time zone. Perth is located in Australia and uses the AWST time zone.
- •Best time to call: There are no overlapping standard work hours (9 AM - 5 PM) between these two cities.
Frequently Asked Questions
What is the time difference between London and Perth?
London is 8 hours behind Perth.
What time is it in Perth when it's 9 AM in London?
When it's 9:00 AM in London, it is 5:00 PM in Perth.
What time is 9 PM GMT in AWST?
9 PM GMT (London time) is 5:00 AM AWST (Perth time). This is a common time people check when scheduling evening calls across these two time zones.
When is the best time to schedule a meeting between London and Perth?
There are no overlapping standard work hours (9 AM - 5 PM) between these two cities.
How do I convert GMT to AWST?
GMT (GMT/BST) is the timezone for London, United Kingdom (UTC+0). AWST (AWST) is the timezone for Perth, Australia (UTC+8). London is 8 hours behind Perth. Quick examples: 9 AM GMT = 5:00 PM AWST, 12 PM GMT = 8:00 PM AWST, 3 PM GMT = 11:00 PM AWST, 6 PM GMT = 2:00 AM AWST.
Is London ahead of or behind Perth?
London is 8 hours behind Perth. When it's noon in London, it's 8:00 PM in Perth.
Does London or Perth change clocks for Daylight Saving Time?
Yes, London observes DST and switches between GMT/BST. Perth does not observe DST — it stays on AWST year-round. Because only one city observes DST, the time difference shifts by 1 hour during transition periods (typically March/April and October/November).
Related Time Zone Conversions
More from London
Convert to Perth
Working across time zones?
Auto-sync calendar events into your timesheet — no matter what time zone your team is in. Connect Google Calendar, Teams, or Zoom and export a polished timesheet in seconds.
No credit card required. Free forever plan available.