How to read it
Tokyo and Sydney, side by side
Each row is one city's day, half an hour to a square, lined up by the hours along the bottom.
- 1Filled: at the desk, 9:00 to 18:00 where that city is.
- 2Grey: up early, up late, or the weekend.
- 3Outline: asleep.
- 4Red band: your slot. Read straight down to see the same moment in every city.
- 5A marks the best time for everyone; B, when there is one, the next best.
The red band is the best time to call on Wed, 21 Oct 2026: 09:00–10:00 in Tokyo, which is 11:00–12:00 in Sydney.
Through the year
How the gap between Tokyo and Sydney moves
Sydney is 2h ahead of Tokyo today. Daylight saving moves it:
- Sydney 2h ahead of Tokyo
- Sydney 1h ahead of Tokyo
- Sun, 4 Apr 2027 Sydney's clocks go back an hour. Sydney is then 1h ahead of Tokyo.
- Sun, 3 Oct 2027 Sydney's clocks go forward an hour. Sydney is then 2h ahead of Tokyo.
Hour by hour
Tokyo to Sydney time, hour by hour
On a working day (Wed, 21 Oct 2026), with working hours of 9:00 to 18:00 in both cities.
- Tokyo starts work 09:00 11:00 in Sydney At desk
- Sydney starts work 09:00 07:00 in Tokyo Early
- Tokyo finishes work 18:00 20:00 in Sydney Late
- Sydney finishes work 18:00 16:00 in Tokyo At desk
Show all 24 hours
| Tokyo | Sydney |
|---|---|
| 00:00 Asleep | 02:00 Asleep |
| 01:00 Asleep | 03:00 Asleep |
| 02:00 Asleep | 04:00 Asleep |
| 03:00 Asleep | 05:00 Asleep |
| 04:00 Asleep | 06:00 Asleep |
| 05:00 Asleep | 07:00 Early |
| 06:00 Asleep | 08:00 Early |
| 07:00 Early | 09:00 At desk |
| 08:00 Early | 10:00 At desk |
| 09:00 At desk | 11:00 At desk |
| 10:00 At desk | 12:00 At desk |
| 11:00 At desk | 13:00 At desk |
| 12:00 At desk | 14:00 At desk |
| 13:00 At desk | 15:00 At desk |
| 14:00 At desk | 16:00 At desk |
| 15:00 At desk | 17:00 At desk |
| 16:00 At desk | 18:00 Late |
| 17:00 At desk | 19:00 Late |
| 18:00 Late | 20:00 Late |
| 19:00 Late | 21:00 Late |
| 20:00 Late | 22:00 Asleep |
| 21:00 Late | 23:00 Asleep |
| 22:00 Asleep | 00:00 Thu Asleep |
| 23:00 Asleep | 01:00 Thu Asleep |
Questions
Questions people ask
What is the time difference between Tokyo and Sydney?
Sydney is 2h ahead of Tokyo (as of Wed, 21 Oct 2026). That changes on Sun, 4 Apr 2027, when Sydney's clocks go back: then Sydney is 1h ahead of Tokyo.
What is the best time for a call between Tokyo and Sydney?
On a working day, the best time for a call is 09:00–10:00 in Tokyo (11:00–12:00 in Sydney) until 3 Apr 2027 and from 3 Oct 2027, and 09:00–10:00 in Tokyo (10:00–11:00 in Sydney) from 4 Apr 2027 to 2 Oct 2027.
Does Tokyo change its clocks?
No. Tokyo stays on UTC+9 all year.
Does Sydney change its clocks?
Yes. Sydney moves its clocks back an hour on Sun, 4 Apr 2027, and forward an hour on Sun, 3 Oct 2027.
More city pairs
Compare more cities
Tokyo and…
- Tokyo and Mumbai
- Tokyo and Delhi
- Tokyo and Bengaluru
- Tokyo and Dubai
- Tokyo and Abu Dhabi
- Tokyo and Riyadh
- Tokyo and Doha
- Tokyo and Singapore
- Tokyo and Hong Kong
- Tokyo and London
- Tokyo and Paris
- Tokyo and Berlin
- Tokyo and Amsterdam
- Tokyo and New York
- Tokyo and Toronto
- Tokyo and Chicago
- Tokyo and Los Angeles
- Tokyo and San Francisco
Sydney and…
- Sydney and Mumbai
- Sydney and Delhi
- Sydney and Bengaluru
- Sydney and Dubai
- Sydney and Abu Dhabi
- Sydney and Riyadh
- Sydney and Doha
- Sydney and Singapore
- Sydney and Hong Kong
- Sydney and London
- Sydney and Paris
- Sydney and Berlin
- Sydney and Amsterdam
- Sydney and New York
- Sydney and Toronto
- Sydney and Chicago
- Sydney and Los Angeles
- Sydney and San Francisco
From the team behind 10:10
Running an event across time zones?
C4E has spent twenty years running conferences, dealer meets and offsites in more than 40 countries, with clients, speakers and crews in different time zones. 10:10 is one of the tools we built for our own shows. It is free, with no account and nothing upsold.