Time Difference

Guiyang vs Haiphong Time Difference

Compare the current local time in Guiyang, China and Haiphong, Vietnam.

Live local timeDST awareUTC offsets

From

Guiyang

China

12:14 PM

Mon, Aug 17

UTC+8Asia/Shanghai

Difference

1 hour

Swap

Haiphong

Vietnam

11:14 AM

Mon, Aug 17

UTC+7Asia/Bangkok

Current difference

Haiphong is currently 1 hour behind Guiyang.

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

24-hour comparison

Compare Guiyang and Haiphong hour by hour

See how a full local day in Guiyang, China maps to Haiphong, Vietnam. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Best working-hours overlap

10:00 AM – 6:00 PM in Guiyang

corresponds to 9:00 AM – 5:00 PM in Haiphong.

8 hours overlap

Guiyang

Asia/Shanghai

Haiphong

Asia/Bangkok

Availability

12:00 AM

Mon, Aug 17

11:00 PM

Previous day

Sun, Aug 16

Night

1:00 AM

Mon, Aug 17

12:00 AM

Mon, Aug 17

Night

2:00 AM

Mon, Aug 17

1:00 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

2:00 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

3:00 AM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

4:00 AM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

5:00 AM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

6:00 AM

Mon, Aug 17

Night

8:00 AM

Mon, Aug 17

7:00 AM

Mon, Aug 17

Possible

9:00 AM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Possible

10:00 AM

Mon, Aug 17

9:00 AM

Mon, Aug 17

Good overlap

11:00 AM

Mon, Aug 17

10:00 AM

Mon, Aug 17

Good overlap

12:00 PM

Mon, Aug 17

11:00 AM

Mon, Aug 17

Good overlap

1:00 PM

Mon, Aug 17

12:00 PM

Mon, Aug 17

Good overlap

2:00 PM

Mon, Aug 17

1:00 PM

Mon, Aug 17

Good overlap

3:00 PM

Mon, Aug 17

2:00 PM

Mon, Aug 17

Good overlap

4:00 PM

Mon, Aug 17

3:00 PM

Mon, Aug 17

Good overlap

5:00 PM

Mon, Aug 17

4:00 PM

Mon, Aug 17

Good overlap

6:00 PM

Mon, Aug 17

5:00 PM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

6:00 PM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

7:00 PM

Mon, Aug 17

Possible

9:00 PM

Mon, Aug 17

8:00 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

9:00 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

10:00 PM

Mon, Aug 17

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 Haiphong from Guiyang

Compare typical business hours in Guiyang, China and Haiphong, Vietnam to find a practical time for calls, meetings or international coordination.

Guiyang

12:14 PM – 6:14 PM

China

Best overlap

Haiphong

11:14 AM – 5:14 PM

Vietnam

The best time to call Haiphong from Guiyang is between 12:14 PM and 6:14 PM in Guiyang. This corresponds to 11:14 AM – 5:14 PM in Haiphong.

Other reasonable windows

Guiyang

6:14 PM – 9:14 PM

Haiphong

5:14 PM – 8:14 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

Guiyang and Haiphong time difference explained

Current local-time relationship

Haiphong is currently 1 hour behind Guiyang.

Guiyang uses Asia/Shanghai and currently has an offset of UTC+8. Haiphong uses Asia/Bangkok and currently has an offset of UTC+7.

Working-hours overlap

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

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 Guiyang and Haiphong.

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Local clocks

Explore each city

Current time in Guiyang Current time in Haiphong

FAQ

Guiyang to Haiphong time difference FAQ

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

What is the time difference between Guiyang and Haiphong?

The current time difference between Guiyang and Haiphong is 1 hour. Haiphong is currently 1 hour behind Guiyang.

Is Haiphong ahead of or behind Guiyang?

Haiphong is currently 1 hour behind Guiyang.

What time is it in Haiphong when it is 9:00 AM in Guiyang?

Using the current UTC offsets, 9:00 AM in Guiyang corresponds to 8:00 AM in Haiphong. The exact difference can change when daylight-saving rules change.

What is the best time to call Haiphong from Guiyang?

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

Can the time difference between Guiyang and Haiphong change?

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