
Exact time synced with atomic clocks (IANA + NTP)
Monday, April 6, 2026
Japan · Asia/Tokyo · GMT+9
Osaka is 1h ahead of Hong Kong

Exact time synced with atomic clocks (IANA + NTP)
Monday, April 6, 2026
Japan · Asia/Tokyo · GMT+9

Exact time synced with atomic clocks (IANA + NTP)
Monday, April 6, 2026
Hong Kong SAR China · Asia/Hong_Kong · GMT+8
If you are scheduling a call between Osaka and Hong Kong, the overlap window is limited to typical business hours. When it is 10 am in Osaka it is 9 am in Hong Kong — a workable window for scheduling. The latest reasonable overlap is around 5 pm in Osaka (4 pm in Hong Kong). Outside this window there is effectively no good overlap for regular office hours.
Osaka and Hong Kong have a comfortable window for a family call — no awkward alarms required. Osaka is 1 hour ahead of Hong Kong, which gives you 4 hours of genuine overlap when both sides are free. Aim for between 6 pm and 10 pm in Osaka — that lands at 5 pm to 9 pm in Hong Kong, after the school run and before anyone's ready for bed. For a Sunday catch-up or a midweek check-in, this is the sweet spot.
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