Hong Kong
Exact time synced with atomic clocks (IANA + NTP)
Thursday, May 21, 2026
Hong Kong SAR China Β· Asia/Hong_Kong Β· GMT+8
Hong Kong and Tokyo Time Difference
Hong Kong is 1h behind Tokyo
Tokyo
Exact time synced with atomic clocks (IANA + NTP)
Thursday, May 21, 2026
Japan Β· Asia/Tokyo Β· GMT+9
Best time for work calls
If you are scheduling a call between Hong Kong and Tokyo, the overlap window is limited to typical business hours. When it is 9 am in Hong Kong it is 10 am in Tokyo β a workable window for scheduling. The latest reasonable overlap is around 4 pm in Hong Kong (5 pm in Tokyo). Outside this window there is effectively no good overlap for regular office hours.
Best time for family calls
Hong Kong and Tokyo have a comfortable window for a family call β no awkward alarms required. Hong Kong is 1 hour behind Tokyo, which gives you 2 hours of genuine overlap when both sides are free. Aim for between 6 pm and 8 pm in Hong Kong β that lands at 7 pm to 9 pm in Tokyo, 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.
Hong Kong
Buddha's Birthday
May 25in 5dDragon Boat Festival
Jun 19in 30dHong Kong Special Administrative Region Establishment Day
Jul 1in 42d
Daylight Cycle
π
Dawn5:17:50 AM
βοΈ Sunrise5:42:11 AM
π Solar Noon12:21:19 PM
π Golden Hour6:28:50 PM
π Sunset7:00:26 PM
π Dusk7:24:47 PM
Day length13:18:15
Data via sunrisesunset.io
Current Weather
Conditionπ¦οΈ Rain showers
Temperature25Β°C
Feels like32Β°C
Humidity99%
Wind2 mph SE
Data via Open-Meteo Β· Updates every 30 min
Moon Phase
Phaseπ Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise09:48
Moonset23:41
Tokyo
Marine Day
Jul 20in 61dMountain Day
Aug 11in 83dRespect for the Aged Day
Sep 21in 124d
Daylight Cycle
π
Dawn4:03:41 AM
βοΈ Sunrise4:32:31 AM
π Solar Noon11:39:13 AM
π Golden Hour6:09:17 PM
π Sunset6:45:55 PM
π Dusk7:14:45 PM
Day length14:13:23
Data via sunrisesunset.io
Current Weather
Conditionπ¦οΈ Drizzle
Temperature21Β°C
Feels like24Β°C
Humidity94%
Wind1 mph NW
Data via Open-Meteo Β· Updates every 30 min
Moon Phase
Phaseπ Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonriseβ
Moonset23:26