The best time to call Sydney from Honolulu is 12 PM–2 PM your time (Honolulu). Sydney, Australia is 3 hours behind Honolulu, USA. There is no standard business hours overlap, so one party will need to adjust their schedule.
Call between 12 PM–2 PM Honolulu time.
Honolulu and Sydney have no overlapping standard business hours. One party will need to adjust.
The best time to call Sydney from Honolulu is 12 PM–2 PM Honolulu time. There is no standard business hours overlap between these cities.
Sydney is 3 hours behind Honolulu.
Avoid calling after 1 AM your time (it's late night there). Consider email or async communication for non-urgent matters.
No, Honolulu and Sydney do not have overlapping standard business hours (9 AM – 5 PM). You will need to schedule calls outside normal hours for one party.
No business hours overlap. You'll need to call outside standard hours — 12 PM–2 PM your time is the least disruptive window.
Both in business hours Both awake One outside comfort zone Sleeping hours
No standard business hours overlap (9 AM – 5 PM) between Honolulu and Sydney.
One party will need to adjust their schedule for calls.
| Honolulu (HST) | Sydney (GMT+11) | Status |
|---|---|---|
| 7 AM | 4 AM | 🔴 They're sleeping |
| 8 AM | 5 AM | 🔴 They're sleeping |
| 9 AM | 6 AM | 🔴 They're sleeping |
| 10 AM | 7 AM | 🟡 They're awake |
| 11 AM | 8 AM | 🟡 They're awake |
| 12 PM | 9 AM | ✅ Both in office |
| 1 PM | 10 AM | ✅ Both in office |
| 2 PM | 11 AM | ✅ Both in office |
| 3 PM | 12 PM | ✅ Both in office |
| 4 PM | 1 PM | ✅ Both in office |
| 5 PM | 2 PM | 🟡 They're awake |
| 6 PM | 3 PM | 🟡 They're awake |
| 7 PM | 4 PM | 🟡 They're awake |
| 8 PM | 5 PM | 🟡 They're awake |
| 9 PM | 6 PM | 🟡 They're awake |