A random search for flights SYD to LHR shows: OPTION 1: 24hr 25min via Abu Dhabi
SYD - AUH Etihad Airways Flt 455 Dep 09:50pm 25Jul,Sat
AUH - LHR Etihad Airways Flt 019 Dep 08:30am 26Jul,Sun
Flight Duration: 22hr 35min; Layover Time: 1hr 50min; Total Trip Time: 24hr 25min OPTION 2: 24hr 50min via Kuala Lumpur (KUL)
SYD - KUL Malaysia Airlines Flt 122 Dep 02:00pm 25Jul,Sat
KUL - LHR Malaysia Airlines Flt 002 Dep 11:40pm 25Jul,Sat
Flight Duration: 21hr 40min; Layover Time: 3hr 10min; Total Trip Time: 24hr 50min
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The fastest direct flight from Sydney to London takes around 21 hours. Some flights may have layovers that can extend the total travel time.
When it's 2am in Sydney, it's 5pm the previous day in London. Sydney is 9 hours ahead of London.
There are 9 hours between London, United Kingdom, and Sydney, Australia. Sydney is 9 hours ahead of London.
In April, Sydney, Australia is 9 hours ahead of London, United Kingdom. If it is 12:00 pm in Sydney, it would be 3:00 am in London.
When London (UTC/UTC+1) is on Summer Time and Sydney (UTC+10/UTC+11) is on Standard Time (from the 1st Sunday of April to the 1st Sunday of October), Sydney is 9 hours ahead of London.When London and Sydney are both on Summer Time (from the last Sunday of March to the 1st Sunday of April and from the 1st Sunday of October to the last Sunday of October), Sydney is 10 hours ahead of London.When London is on Standard Time and Sydney is on Summer Time (from the last Sunday of October to the last Sunday of March), Sydney is 11 hours ahead of London.So in June, 1 PM BST in London = 10 PM Eastern Standard Time in Sydney.In mid-October, 1 PM BST in London = 11 PM Eastern Summer Time in Sydney.In December, 12 noon GMT in London = 11 PM Eastern Summer Time in Sydney.
Not if you go via the shorter route.