Best time to call London from Sydney
There is no 9-to-5 overlap between these cities. Best compromise: 4 PM–10 PM in Sydney (7 AM–1 PM in London), both sides are at least awake (7 AM–10 PM). London is 9 hours behind Sydney. (as of July 2026, recalculated live in your browser.)
Live from your device clock via the IANA time-zone database built into your browser.
Hour-by-hour overlap
Both 9 AM–5 PM Both awake (7 AM–10 PM) One side asleep
| Sydney | London | Call quality |
|---|---|---|
| 12 AM | 3 PM −1 day | Too early / too late |
| 1 AM | 4 PM −1 day | Too early / too late |
| 2 AM | 5 PM −1 day | Too early / too late |
| 3 AM | 6 PM −1 day | Too early / too late |
| 4 AM | 7 PM −1 day | Too early / too late |
| 5 AM | 8 PM −1 day | Too early / too late |
| 6 AM | 9 PM −1 day | Too early / too late |
| 7 AM | 10 PM −1 day | Too early / too late |
| 8 AM | 11 PM −1 day | Too early / too late |
| 9 AM | 12 AM | Too early / too late |
| 10 AM | 1 AM | Too early / too late |
| 11 AM | 2 AM | Too early / too late |
| 12 PM | 3 AM | Too early / too late |
| 1 PM | 4 AM | Too early / too late |
| 2 PM | 5 AM | Too early / too late |
| 3 PM | 6 AM | Too early / too late |
| 4 PM | 7 AM | One side off-hours |
| 5 PM | 8 AM | One side off-hours |
| 6 PM | 9 AM | One side off-hours |
| 7 PM | 10 AM | One side off-hours |
| 8 PM | 11 AM | One side off-hours |
| 9 PM | 12 PM | One side off-hours |
| 10 PM | 1 PM | Too early / too late |
| 11 PM | 2 PM | Too early / too late |
Grid prerendered July 2026 and recomputed in your browser on load, so daylight-saving switches are always reflected. Both Sydney and London observe daylight saving time, but they switch on different dates, the gap between them shifts for a few weeks each spring and autumn.
Frequently asked questions
How many hours ahead is London of Sydney?
London is 9 hours behind Sydney. (Checked July 2026; where daylight saving applies, the gap can shift by an hour part of the year, the page recalculates live.)
What time is 9 AM in Sydney in London?
9 AM in Sydney is 12 AM in London.
Do Sydney and London change clocks for daylight saving?
Both Sydney and London observe daylight saving time, but they switch on different dates, the gap between them shifts for a few weeks each spring and autumn.
Which hours work for a call?
There is no 9-to-5 overlap between these cities. Best compromise: 4 PM–10 PM in Sydney (7 AM–1 PM in London), both sides are at least awake (7 AM–10 PM).