Does Hanoi observe daylight saving time?

No. Hanoi stays on ICT (UTC+7) all year, so its clocks don't change.

Does Hong Kong observe daylight saving time?

No. Hong Kong stays on HKT (UTC+8) all year, so its clocks don't change.

What time is it in Hong Kong when it's 9 AM in Hanoi?

10:00 AM in Hong Kong, on the same day.

Hanoi to Hong Kong Meeting Planner

Hong Kong is 1 hour ahead of Hanoi right now. Their working days overlap for 7 hours today.

Hanoi · Vietnam

9:38 AM

Sun, Oct 18 · ICT

Hong Kong · China

10:38 AM

Sun, Oct 18 · HKT

Best Meeting Times Between Hanoi and Hong Kong

9:00 AM to 4:00 PM in Hanoi (10:00 AM to 5:00 PM in Hong Kong). That's when both cities are inside working hours, 9 AM to 5 PM, giving 7 hours of overlap today.

Who's meeting

2 of 4 places

HanoiOrganizerVietnam ·9:38AMnow
Hong KongChina ·10:38AMnow

Add a city

Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in Hanoi

Working hours, everywhere

Best times to meet

Sunday, October 18, 2026, in Hanoi time.

1:00PMBest · OptimalWorking hours in Hanoi (13:00) and Hong Kong (14:00).
12:00PMOption 2 · OptimalWorking hours in Hanoi (12:00) and Hong Kong (13:00).
2:00PMOption 3 · OptimalWorking hours in Hanoi (14:00) and Hong Kong (15:00).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a one-hour slot of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
HanoiUTC+7
Hong KongUTC+8
UTC	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

Hanoi1:00 PM UTC+7Sun, Oct 18
Hong Kong2:00 PM UTC+8Sun, Oct 18
UTC2026-10-18 06:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Hanoi and Hong Kong

Hong Kong is 1 hour ahead of Hanoi right now: Hong Kong is on HKT (UTC+8) and Hanoi on ICT (UTC+7). Neither city changes its clocks, so the gap is the same all year.

Time difference between Hanoi and Hong Kong over the next 12 months
From	Difference	Why
Now	Hong Kong 1 hour ahead	—

Hanoi is on Indochina Time. Hong Kong is on Hong Kong Standard Time.

Frequently Asked Questions: Hanoi & Hong Kong Scheduling

What is the time difference between Hanoi and Hong Kong?: Hong Kong is 1 hour ahead of Hanoi right now: Hong Kong is on HKT (UTC+8) and Hanoi on ICT (UTC+7). Neither city changes its clocks, so the gap is the same all year.
What is the best time to schedule a meeting between Hanoi and Hong Kong?: 9:00 AM to 4:00 PM in Hanoi (10:00 AM to 5:00 PM in Hong Kong). That's when both cities are inside working hours, 9 AM to 5 PM, giving 7 hours of overlap today.
Does Hanoi observe daylight saving time?: No. Hanoi stays on ICT (UTC+7) all year, so its clocks don't change.
Does Hong Kong observe daylight saving time?: No. Hong Kong stays on HKT (UTC+8) all year, so its clocks don't change.
What time is it in Hong Kong when it's 9 AM in Hanoi?: 10:00 AM in Hong Kong, on the same day.

Or see every city pair, or plan with more places in the meeting planner.