Time Difference

Port Harcourt vs Haikou Time Difference

Compare the current local time in Port Harcourt, Nigeria and Haikou, China.

Live local timeDST awareUTC offsets

From

Port Harcourt

Nigeria

8:28 AM

Mon, Aug 17

UTC+1Africa/Lagos

Difference

7 hours

Swap

Haikou

China

3:28 PM

Mon, Aug 17

UTC+8Asia/Shanghai

Current difference

Haikou is currently 7 hours ahead of Port Harcourt.

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

24-hour comparison

Compare Port Harcourt and Haikou hour by hour

See how a full local day in Port Harcourt, Nigeria maps to Haikou, China. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Best working-hours overlap

9:00 AM – 11:00 AM in Port Harcourt

corresponds to 4:00 PM – 6:00 PM in Haikou.

2 hours overlap

Port Harcourt

Africa/Lagos

Haikou

Asia/Shanghai

Availability

12:00 AM

Mon, Aug 17

7:00 AM

Mon, Aug 17

Night

1:00 AM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Night

2:00 AM

Mon, Aug 17

9:00 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

10:00 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

11:00 AM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

12:00 PM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

1:00 PM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

2:00 PM

Mon, Aug 17

Possible

8:00 AM

Mon, Aug 17

3:00 PM

Mon, Aug 17

Possible

9:00 AM

Mon, Aug 17

4:00 PM

Mon, Aug 17

Good overlap

10:00 AM

Mon, Aug 17

5:00 PM

Mon, Aug 17

Good overlap

11:00 AM

Mon, Aug 17

6:00 PM

Mon, Aug 17

Possible

12:00 PM

Mon, Aug 17

7:00 PM

Mon, Aug 17

Possible

1:00 PM

Mon, Aug 17

8:00 PM

Mon, Aug 17

Possible

2:00 PM

Mon, Aug 17

9:00 PM

Mon, Aug 17

Night

3:00 PM

Mon, Aug 17

10:00 PM

Mon, Aug 17

Night

4:00 PM

Mon, Aug 17

11:00 PM

Mon, Aug 17

Night

5:00 PM

Mon, Aug 17

12:00 AM

Next day

Tue, Aug 18

Night

6:00 PM

Mon, Aug 17

1:00 AM

Next day

Tue, Aug 18

Night

7:00 PM

Mon, Aug 17

2:00 AM

Next day

Tue, Aug 18

Night

8:00 PM

Mon, Aug 17

3:00 AM

Next day

Tue, Aug 18

Night

9:00 PM

Mon, Aug 17

4:00 AM

Next day

Tue, Aug 18

Night

10:00 PM

Mon, Aug 17

5:00 AM

Next day

Tue, Aug 18

Night

11:00 PM

Mon, Aug 17

6:00 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 Haikou from Port Harcourt

Compare typical business hours in Port Harcourt, Nigeria and Haikou, China to find a practical time for calls, meetings or international coordination.

Port Harcourt

9:00 AM – 11:00 AM

Nigeria

Best overlap

Haikou

4:00 PM – 6:00 PM

China

The best time to call Haikou from Port Harcourt is between 9:00 AM and 11:00 AM in Port Harcourt. This corresponds to 4:00 PM – 6:00 PM in Haikou.

Other reasonable windows

Port Harcourt

7:00 AM – 9:00 AM

Haikou

2:00 PM – 4:00 PM

Port Harcourt

11:00 AM – 2:00 PM

Haikou

6:00 PM – 9:00 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

Port Harcourt and Haikou time difference explained

Current local-time relationship

Haikou is currently 7 hours ahead of Port Harcourt.

Port Harcourt uses Africa/Lagos and currently has an offset of UTC+1. Haikou uses Asia/Shanghai and currently has an offset of UTC+8.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 9:00 AM to 11:00 AM in Port Harcourt, corresponding to 4:00 PM–6:00 PM in Haikou.

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 Port Harcourt and Haikou.

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Local clocks

Explore each city

Current time in Port Harcourt Current time in Haikou

FAQ

Port Harcourt to Haikou time difference FAQ

Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between Port Harcourt and Haikou.

What is the time difference between Port Harcourt and Haikou?

The current time difference between Port Harcourt and Haikou is 7 hours. Haikou is currently 7 hours ahead of Port Harcourt.

Is Haikou ahead of or behind Port Harcourt?

Haikou is currently 7 hours ahead of Port Harcourt.

What time is it in Haikou when it is 9:00 AM in Port Harcourt?

Using the current UTC offsets, 9:00 AM in Port Harcourt corresponds to 4:00 PM in Haikou. The exact difference can change when daylight-saving rules change.

What is the best time to call Haikou from Port Harcourt?

Typical 9:00 AM–6:00 PM business hours overlap between 9:00 AM and 11:00 AM in Port Harcourt. This corresponds to 4:00 PM–6:00 PM in Haikou.

Can the time difference between Port Harcourt and Haikou change?

Yes. The time difference can change if Port Harcourt or Haikou changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones Africa/Lagos and Asia/Shanghai for date-aware calculations.