Best overlap: 8:00 AM to 5:00 PM in Hong Kong is 9:00 AM to 6:00 PM in Tokyo.
The sweet spot is 8:00 AM to 5:00 PM Hong Kong time, matching 9:00 AM to 6:00 PM in Tokyo. Tokyo is 1 hour ahead of Hong Kong, and with 9 hours of overlap you can even run back-to-back calls without stepping outside business hours.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Hong Kong Asia/Hong Kong | ||||||||||||||||||||||||
Tokyo Asia/Tokyo |
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