Time Difference

Hong Kong vs Tokyo Time Difference

Compare the current local time in Hong Kong, Hong Kong and Tokyo, Japan.

Live local timeDST awareUTC offsets

From

Hong Kong

7:42 AM

Mon, Aug 17

UTC+8Asia/Hong_Kong

Difference

1 hour

Swap

Tokyo

Japan

8:42 AM

Mon, Aug 17

UTC+9Asia/Tokyo

Current difference

Tokyo is currently 1 hour ahead of Hong Kong.

This difference is calculated using the current UTC offsets for both locations and automatically reflects daylight-saving changes.

24-hour comparison

Compare Hong Kong and Tokyo hour by hour

See how a full local day in Hong Kong, Hong Kong maps to Tokyo, Japan. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Best working-hours overlap

9:00 AM – 5:00 PM in Hong Kong

corresponds to 10:00 AM – 6:00 PM in Tokyo.

8 hours overlap

Hong Kong

Asia/Hong_Kong

Tokyo

Asia/Tokyo

Availability

12:00 AM

Mon, Aug 17

1:00 AM

Mon, Aug 17

Night

1:00 AM

Mon, Aug 17

2:00 AM

Mon, Aug 17

Night

2:00 AM

Mon, Aug 17

3:00 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

4:00 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

5:00 AM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

6:00 AM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

7:00 AM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Possible

8:00 AM

Mon, Aug 17

9:00 AM

Mon, Aug 17

Possible

9:00 AM

Mon, Aug 17

10:00 AM

Mon, Aug 17

Good overlap

10:00 AM

Mon, Aug 17

11:00 AM

Mon, Aug 17

Good overlap

11:00 AM

Mon, Aug 17

12:00 PM

Mon, Aug 17

Good overlap

12:00 PM

Mon, Aug 17

1:00 PM

Mon, Aug 17

Good overlap

1:00 PM

Mon, Aug 17

2:00 PM

Mon, Aug 17

Good overlap

2:00 PM

Mon, Aug 17

3:00 PM

Mon, Aug 17

Good overlap

3:00 PM

Mon, Aug 17

4:00 PM

Mon, Aug 17

Good overlap

4:00 PM

Mon, Aug 17

5:00 PM

Mon, Aug 17

Good overlap

5:00 PM

Mon, Aug 17

6:00 PM

Mon, Aug 17

Possible

6:00 PM

Mon, Aug 17

7:00 PM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

8:00 PM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

9:00 PM

Mon, Aug 17

Night

9:00 PM

Mon, Aug 17

10:00 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

11:00 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

12:00 AM

Next day

Tue, Aug 18

Night

Working-hour labels use a general 9:00 AM–6:00 PM schedule. Individual schedules may differ.

On daylight-saving transition dates, a local day can contain 23 or 25 real hours instead of 24.

Call planning

Best time to call Tokyo from Hong Kong

Compare typical business hours in Hong Kong, Hong Kong and Tokyo, Japan to find a practical time for calls, meetings or international coordination.

Hong Kong

9:42 AM – 5:42 PM

Hong Kong

Best overlap

Tokyo

10:42 AM – 6:42 PM

Japan

The best time to call Tokyo from Hong Kong is between 9:42 AM and 5:42 PM in Hong Kong. This corresponds to 10:42 AM – 6:42 PM in Tokyo.

Other reasonable windows

Hong Kong

7:42 AM – 9:42 AM

Tokyo

8:42 AM – 10:42 AM

Hong Kong

5:42 PM – 8:42 PM

Tokyo

6:42 PM – 9:42 PM

Recommendations use typical 9:00 AM–6:00 PM business hours and a broader 7:00 AM–9:00 PM acceptable calling window. Individual schedules may differ.

Time difference explained

Hong Kong and Tokyo time difference explained

Current local-time relationship

Tokyo is currently 1 hour ahead of Hong Kong.

Hong Kong uses Asia/Hong_Kong and currently has an offset of UTC+8. Tokyo uses Asia/Tokyo and currently has an offset of UTC+9.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 9:00 AM to 5:00 PM in Hong Kong, corresponding to 10:00 AM–6:00 PM in Tokyo.

Because UTC offsets can change during the year, always check the selected date when planning an important international call or meeting.

Convert a specific time

Need more than the current difference?

Convert a specific date and local time between Hong Kong and Tokyo.

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Local clocks

Explore each city

Current time in Hong Kong Current time in Tokyo

FAQ

Hong Kong to Tokyo time difference FAQ

Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between Hong Kong and Tokyo.

What is the time difference between Hong Kong and Tokyo?

The current time difference between Hong Kong and Tokyo is 1 hour. Tokyo is currently 1 hour ahead of Hong Kong.

Is Tokyo ahead of or behind Hong Kong?

Tokyo is currently 1 hour ahead of Hong Kong.

What time is it in Tokyo when it is 9:00 AM in Hong Kong?

Using the current UTC offsets, 9:00 AM in Hong Kong corresponds to 10:00 AM in Tokyo. The exact difference can change when daylight-saving rules change.

What is the best time to call Tokyo from Hong Kong?

Typical 9:00 AM–6:00 PM business hours overlap between 9:00 AM and 5:00 PM in Hong Kong. This corresponds to 10:00 AM–6:00 PM in Tokyo.

Can the time difference between Hong Kong and Tokyo change?

Yes. The time difference can change if Hong Kong or Tokyo changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones Asia/Hong_Kong and Asia/Tokyo for date-aware calculations.