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 sits in Oceania and observes daylight saving time, while London is in Europe and shifts its clocks seasonally.
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.