City comparison · time difference and converter
Tokyo is 1 hour behind Sydney right now. Sydney sits in Australia on Sydney; Tokyo sits in Japan on Tokyo. They are roughly 7,826 km apart (4,863 mi), a flight of about 10h 12m. Sydney's metro holds around 5.3 million people; Tokyo's around 37.4 million.
Slot 1
10:00 / 09:00
Sydney / Tokyo
Both inside business hoursSlot 2
11:00 / 10:00
Sydney / Tokyo
Both inside business hoursSlot 3
12:00 / 11:00
Sydney / Tokyo
Both inside business hoursEach row is one hour in Sydney. Green rows are inside business hours in both cities; amber means only one side is at their desk; grey rows fall outside business hours in both.
No public holidays in Australia or Japan this month.
Great-circle distance
7,826 km
(4,863 mi)
Approximate flight
10h 12m
850 km/h cruise + 1h taxi/climb/descent
Jet lag
1h
Roughly 1 day to adjust per timezone crossed
The heatmap gives you the shape of the day. If you need to convert one specific hour — say a customer call or a release window — open the converter with both cities already loaded.
Open in converter →The difference between Sydney and Tokyo is not really a number, it's a daily rhythm. Tokyo is 1 hour behind Sydney on the clock today, but the lived version is that Sydney is ahead in the calendar, so by the time Tokyo comes online, half of Sydney's day is already gone. That gap, more than the raw offset, is what teams have to design around.
In Sydney, the working day picks up earliest in the financial districts — Sydney CBD desks ramp up by 08:30 with the ASX open. The mood in Tokyo is its own story: Shibuya's office workers leave around 19:00, often heading to izakayas, then home on the last train. If you are scheduling between the two, the heatmap above marks the rows where both patterns line up.
Daylight saving is the other thing to keep an eye on. Australia either observes DST or holds a fixed offset year-round; Japan either follows its region's DST pattern or stays put all year. When the two changes are weeks apart, the offset between Sydney and Tokyo is one hour off the usual for that stretch — a cliff that catches recurring calendar invites unless your calendar app rebases them automatically. Pin the meeting to a city, not an offset, and the tool handles the rest.
For travellers, the 10h 12m flight is the short version of the story. The longer one is jet lag: roughly one day of adjustment per timezone crossed, which means a trip across the 1-hour gap costs about 1 groggy days on each side. Pilots and cabin crew swear by morning sunlight and an early walk; whatever your routine, the wall-clock numbers above are the source of truth for your first morning in the new city.