Time Difference: Colombo to Sydney
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Colombo vs Sydney timezone guide
Colombo (Sri Lanka) uses the Asia/Colombo timezone at UTC+5:30, while Sydney (Australia) uses Australia/Sydney at UTC+10. This means Sydney is 4 hours 30 minutes ahead of Colombo (based on standard offsets — the live difference above accounts for daylight saving time).
Best meeting times between Colombo and Sydney
Standard 9-to-5 working hours overlap by 3.5 hours per day. The shared window is 9am–12:30pm in Colombo, which is 1:30pm–5pm in Sydney. Schedule recurring meetings inside that window and both teams stay inside standard working hours.
Hour-by-hour planner
| Colombo | Sydney | Status |
|---|---|---|
| 6am | 10:30am | One side outside 9-to-5 but still awake |
| 7am | 11:30am | One side outside 9-to-5 but still awake |
| 8am | 12:30pm | One side outside 9-to-5 but still awake |
| 9am | 1:30pm | Both at work — ideal meeting time |
| 10am | 2:30pm | Both at work — ideal meeting time |
| 11am | 3:30pm | Both at work — ideal meeting time |
| 12pm | 4:30pm | Both at work — ideal meeting time |
| 1pm | 5:30pm | One side outside 9-to-5 but still awake |
| 2pm | 6:30pm | One side outside 9-to-5 but still awake |
| 3pm | 7:30pm | One side outside 9-to-5 but still awake |
| 4pm | 8:30pm | One side outside 9-to-5 but still awake |
| 5pm | 9:30pm | Colombo evening, Sydney evening |
| 6pm | 10:30pm | Colombo evening, Sydney late evening |
| 7pm | 11:30pm | Colombo evening, Sydney late evening |
| 8pm | 12:30am | Colombo evening, Sydney asleep |
| 9pm | 1:30am | Colombo evening, Sydney asleep |
| 10pm | 2:30am | Colombo late evening, Sydney asleep |
Green = standard working hours (9 AM – 5 PM). Amber = early (6–9 AM). Orange = evening (5–10 PM). Grey = asleep or late.
Daylight saving time between Colombo and Sydney
Sydney observes daylight saving time, but Colombo does not. That means the difference between the two cities changes seasonally — by one hour, around Sydney's transition dates.
- Jan 1 → Apr 4Colombo is 5h 30m behind Sydney
- Apr 4 → Oct 3Colombo is 4h 30m behind Sydney
- Oct 3 → Jan 1Colombo is 5h 30m behind Sydney
Distance between Colombo and Sydney
Colombo and Sydney are 8,748 km apart along the great-circle route. A direct flight takes roughly ~11h 18m, depending on aircraft type, winds, and routing.