Tokyo is 1 hour ahead of Hong Kong. Midday in Tokyo lines up with 11:00 in Hong Kong.
Tokyo is in the Asia/Tokyo timezone. Hong Kong is in Asia/Hong_Kong. The difference is 1 hour.
Daily overlap window
There is a 7-hour window each day where both Tokyo and Hong Kong are within standard business hours (09:00–17:00).
00:0006:0012:0018:0024:00
Tokyo
Hong Kong
Overlap (7h)
When to schedule across time zones
Both Tokyo and Hong Kong are in standard hours simultaneously for 7h per day. 3 recommended slots shown below.
10:00 Tokyo / 09:00 Hong Kong✓ Both working
11:00 Tokyo / 10:00 Hong Kong✓ Both working
12:00 Tokyo / 11:00 Hong Kong✓ Both working
Based on standard 09:00–17:00 working hours in each location's local time.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
Tokyo7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
Hong Kong6 holidays
Jul 1Hong Kong Special Administrative Region Establishment DaySOON
Sep 26Day following the Mid-Autumn Festival
Oct 1National Day
Oct 19Chung Yeung Festival
Dec 25Christmas Day
How to work with Tokyo and Hong Kong time zones
Working across Tokyo (Japan) and Hong Kong (Hong Kong) involves a 1-hour gap. The good news: there is a 7-hour mutual window in standard business hours that lets both sides collaborate without anyone joining at an unreasonable hour.
💡 How to schedule across these time zones
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10:00–11:00 in Tokyo = 09:00–10:00 in Hong Kong. Both sides are in standard business hours during this window.
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11:00–12:00 in Tokyo = 10:00–11:00 in Hong Kong. Both sides are in standard business hours during this window.
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12:00–13:00 in Tokyo = 11:00–12:00 in Hong Kong. Both sides are in standard business hours during this window.
DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.
Use the time slider above to find the exact equivalent time for any moment in Tokyo. The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.
