Best overlap: 8:30 AM to 1:30 PM in Colombo is 1:00 PM to 6:00 PM in Sydney.
If you set up a recurring sync, 8:30 AM to 1:30 PM in Colombo (1:00 PM to 6:00 PM in Sydney) is the natural home for it. Sydney is 4.5 hours ahead of Colombo, leaving about 5 hours of daily overlap — enough for most meetings if you don't leave them too late in the day. Finally, Sydney observes daylight saving and Colombo doesn't, so this window shifts by an hour for part of the year — recheck it each spring and autumn.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Colombo Asia/Colombo | ||||||||||||||||||||||||
Sydney Australia/Sydney |
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