London to Sydney Time Difference

Understanding the London–Sydney Time Difference

London uses the Europe/London time zone, switching between GMT and BST, while Sydney uses Australia/Sydney, switching between AEST and AEDT. Because both cities change clocks at different dates, the exact London–Sydney time difference is not the same every month.

Scheduling reality: London and Sydney often fall on different calendar days. When it’s morning in London, it’s late afternoon or evening in Sydney—so the most reliable overlap is usually early UK hours and late Sydney hours. For a fast check, try the Meeting Overlap Finder or view the city pages for London and Sydney.

Because London and Sydney sit in opposite hemispheres, their seasons and public holidays rarely line up. A winter morning in London often corresponds to a summer evening in Sydney, which can actually make it easier to schedule regular calls when one side is finishing the day while the other is just starting.

In simple terms, you can think of it this way: for much of the year Sydney runs about 10–11 hours ahead of London, with a shorter period when the gap narrows to around nine hours during daylight saving changeovers.

For part of the year, Sydney can be 11 hours ahead of London. At other times, the difference may shrink to around 9 or 10 hours. Instead of memorizing these shifts, you can rely on MeetSpan’s live time converter and overlap planner on this page to always see the correct current and future times for both cities. Whenever you open this page, MeetSpan shows the current time in London and Sydney side by side and updates automatically as time passes.

Best Time to Call Between London and Sydney

Because of the large time gap, the best time to call or schedule a video meeting is when one side is at the edge of the workday and the other is starting or finishing theirs. This keeps both cities within reasonable hours and avoids very early or very late calls for most people.

• For business and Zoom/Teams meetings: popular windows are London morning (around 08:00–11:00) with Sydney late afternoon or evening, or London late evening (around 20:00–22:00) with Sydney next‑day early morning, depending on daylight saving time.
• For quick check-ins: slightly later options such as London lunchtime and Sydney late evening can work, but they are usually better kept for short or urgent calls because one side is close to the end of the day.
• For personal or family calls: weekend slots that overlap with London late morning or early afternoon and Sydney evening are usually the most comfortable choices for both sides.

Use the live planner and overlap table above to choose the exact time that fits your date. The table automatically adjusts for Daylight Saving Time in both cities, so it stays accurate even as the London–Sydney time difference changes during the year.

Daylight Saving Time Considerations

Both London and Sydney can observe daylight saving time, and they change on different schedules. That means the offset can shift by 1 hour during transition periods—so verify the exact difference for your meeting date using the live clocks on this page.

Because of this, there are periods in the year when the London–Sydney time difference is larger, and other periods when it is slightly smaller. Always check the specific date you care about using the tools on this page instead of assuming a fixed offset.

Practical Examples

For Remote Teams

For remote teams, pick a “core” slot that keeps both sides within reasonable working hours, then rotate occasionally to share early mornings and late evenings. Always verify conversions on dates near DST transitions in either city.

For International Business

When planning client calls, presentations, or negotiations, using the overlap window makes it easier to secure good attendance and engagement. For example, scheduling a call at London 10:00 typically places it in the early evening in Sydney, which often provides the best balance between availability and comfort.

For Travelers and Long Stays

If you are planning a long stay or frequent trips between London and Sydney, the shifting 9–11 hour gap is also useful for planning flights and recovery days. Many travelers prefer arriving when the other city is in the late afternoon or early evening, so they can stay awake until a normal local bedtime and adjust to the new time zone more quickly.

How to Use This Page Effectively

Start with the live time cards at the top of the page to see the current local time in London and Sydney and the real-time offset between them.

Then, use the 7-day business-hours table to understand how weekday working hours line up and why there is no strict 09:00–17:00 overlap. This helps you choose fair slots for both sides.

Finally, scan the detailed 24-hour alignment table to spot specific hours that are excellent, acceptable, or not recommended for meetings. For more complex setups, you can open the Meeting Overlap Finder and add London, Sydney, and any other city you work with to see a shared overlap window.

London–Sydney quick checklist

Use this page to schedule London–Sydney calls accurately, even when daylight saving time changes in either country.

• Check the live clocks for the current time in London and Sydney.
• Use the 24-hour table to see how a London time maps to Sydney across the day boundary.
• Review the weekly planner when scheduling ahead—DST can shift the offset by 1 hour.
• For multi-city scheduling, add more locations using the Meeting Overlap Finder.

Remote-team scheduling tips for London and Sydney

London and Sydney often overlap at the edges of the day because the offset is large and can change with DST.

• Try London early morning for Sydney afternoon, or London evening for Sydney morning (next day).
• Watch DST changes in both cities—either one can shift the meeting time by 1 hour.
• Use calendar invites with time zone support to prevent cross-day confusion.