The best time to call Sydney from Hanoi is 9 AM–1 PM your time (Hanoi). Sydney, Australia is 4 hours ahead of Hanoi, Vietnam. You have 4 hours of business hours overlap for scheduling calls.
Call between 9 AM–1 PM Hanoi time. This is 1 PM–5 PM in Sydney.
Hanoi and Sydney share 4 hours of overlapping business hours (9 AM – 5 PM local time).
The best time to call Sydney from Hanoi is 9 AM–1 PM Hanoi time. This gives you 4 hours of business hours overlap.
Sydney is 4 hours ahead of Hanoi.
Avoid calling after 6 PM your time (it's late night there).
Yes, Hanoi and Sydney have approximately 4 hours of overlapping business hours per day.
You have 4 hours of overlap. Call during 9 AM–1 PM your time for the best results.
Both in business hours Both awake One outside comfort zone Sleeping hours
Hanoi: 9 AM–1 PM GMT+7
Sydney: 1 PM–5 PM GMT+11
| Hanoi (GMT+7) | Sydney (GMT+11) | Status |
|---|---|---|
| 7 AM | 11 AM | 🟡 They're awake |
| 8 AM | 12 PM | 🟡 They're awake |
| 9 AM | 1 PM | ✅ Both in office |
| 10 AM | 2 PM | ✅ Both in office |
| 11 AM | 3 PM | ✅ Both in office |
| 12 PM | 4 PM | ✅ Both in office |
| 1 PM | 5 PM | 🟡 They're awake |
| 2 PM | 6 PM | 🟡 They're awake |
| 3 PM | 7 PM | 🟡 They're awake |
| 4 PM | 8 PM | 🟡 They're awake |
| 5 PM | 9 PM | 🟡 They're awake |
| 6 PM | 10 PM | 🔴 They're sleeping |
| 7 PM | 11 PM | 🔴 They're sleeping |
| 8 PM | 12 AM | 🔴 They're sleeping |
| 9 PM | 1 AM | 🔴 They're sleeping |