Tokyo zone
GMT+9 (GMT+9)
Hong Kong zone
GMT+8 (GMT+8)
Difference
1 hour behind Tokyo
Business overlap
7h (9-5 windows)
Working hours overlap
Each cell is one hour in Tokyo. Filled cells mark when 9 AM – 5 PM in Tokyo and Hong Kong both apply.
7 hours per day
- Tokyo
- GMT+9
- Hong Kong
- GMT+8
- Difference
- -1h
- Business overlap
- 7h
Hour-by-hour conversion
Each row shows the matching local time in Hong Kong for an hour in Tokyo.
| Tokyo | Hong Kong | Day | Window |
|---|---|---|---|
| 12:00 AM | 11:00 PM | previous day | — |
| 1:00 AM | 12:00 AM | same day | — |
| 2:00 AM | 1:00 AM | same day | — |
| 3:00 AM | 2:00 AM | same day | — |
| 4:00 AM | 3:00 AM | same day | — |
| 5:00 AM | 4:00 AM | same day | — |
| 6:00 AM | 5:00 AM | same day | — |
| 7:00 AM | 6:00 AM | same day | — |
| 8:00 AM | 7:00 AM | same day | — |
| 9:00 AM | 8:00 AM | same day | — |
| 10:00 AM | 9:00 AM | same day | Both 9-5 |
| 11:00 AM | 10:00 AM | same day | Both 9-5 |
| 12:00 PM | 11:00 AM | same day | Both 9-5 |
| 1:00 PM | 12:00 PM | same day | Both 9-5 |
| 2:00 PM | 1:00 PM | same day | Both 9-5 |
| 3:00 PM | 2:00 PM | same day | Both 9-5 |
| 4:00 PM | 3:00 PM | same day | Both 9-5 |
| 5:00 PM | 4:00 PM | same day | — |
| 6:00 PM | 5:00 PM | same day | — |
| 7:00 PM | 6:00 PM | same day | — |
| 8:00 PM | 7:00 PM | same day | — |
| 9:00 PM | 8:00 PM | same day | — |
| 10:00 PM | 9:00 PM | same day | — |
| 11:00 PM | 10:00 PM | same day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 10:00 AM – 5:00 PM in Tokyo time. That gives you 7 hours per workday for live meetings.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Tokyo time to Hong Kong time
Tokyo follows the Asia/Tokyo time zone (currently GMT+9, GMT+9), while Hong Kong follows Asia/Hong_Kong (currently GMT+8, GMT+8). Hong Kong is 1 hour behind Tokyo right now.
Neither city observes daylight saving time, so the offset between them is the same all year.
Reverse this conversion
Hong Kong to Tokyo
Open the converter
Plan a meeting between Tokyo and Hong Kong
More conversions from Tokyo
Frequently asked questions
- How many hours is Tokyo from Hong Kong?
- Hong Kong is 1 hour behind Tokyo right now.
- What time is 9:00 AM Tokyo in Hong Kong?
- 9:00 AM in Tokyo is 8:00 AM in Hong Kong.
- What time is 5:00 PM Tokyo in Hong Kong?
- 5:00 PM in Tokyo is 4:00 PM in Hong Kong.
- When do Tokyo and Hong Kong business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 7 hours, roughly from 10:00 AM to 5:00 PM in Tokyo time.
- Does daylight saving time change the difference between Tokyo and Hong Kong?
- Neither Tokyo nor Hong Kong observes daylight saving time, so the offset between them is constant year-round.
Local time page
Time in Tokyo
Local time page
Time in Hong Kong