Sydney and London Time Zone Comparison
Anyone curious about the time difference between Sydney and London usually also wants to know a bit about each city. Sydney is Australia's most populous city and its leading financial and tourism hub, globally recognized for its iconic Opera House. London, the capital of the United Kingdom, is one of the world's leading financial centers, and much of global banking and stock-market activity is scheduled around London time.
Because Sydney and/or London observe daylight saving time for part of the year, the gap between them isn't fixed — it ranges between 9 and 11 hours depending on the season.
With a gap this large, business hours barely overlap between Sydney and London — an early morning or a late evening on one side is usually needed to connect with the other.