Does Hong Kong observe daylight saving time?

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

Does Vienna observe daylight saving time?

Yes. Vienna is on CEST (UTC+2) now, and its clocks go back 1 hour on Sun, Oct 25, to CET (UTC+1).

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

3:00 AM in Vienna, on the same day.

Hong Kong to Vienna Meeting Planner

Vienna is 6 hours behind Hong Kong right now. Their working days overlap for 2 hours today.

Hong Kong · China

12:38 PM

Sun, Oct 18 · HKT

Vienna · Austria

6:38 AM

Sun, Oct 18 · CEST · summer time

Best Meeting Times Between Hong Kong and Vienna

3:00 PM to 5:00 PM in Hong Kong (9:00 AM to 11:00 AM in Vienna). That's when both cities are inside working hours, 9 AM to 5 PM, giving 2 hours of overlap today.

Who's meeting

2 of 4 places

Hong KongOrganizerChina ·12:38PMnow
ViennaAustria ·· summer time6:38AMnow

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 Hong Kong

Working hours, everywhere

Best times to meet

Sunday, October 18, 2026, in Hong Kong time.

3:00PMBest · OptimalWorking hours in Hong Kong (15:00) and Vienna (09:00).
4:00PMOption 2 · OptimalWorking hours in Hong Kong (16:00) and Vienna (10:00).
1:00PMOption 3 · GoodWorking hours in Hong Kong (13:00); just outside working hours in Vienna (07:00).

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
Hong KongUTC+8
ViennaCEST
UTC	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15

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

Your meeting

Hong Kong3:00 PM UTC+8Sun, Oct 18
Vienna9:00 AM CESTSun, Oct 18
UTC2026-10-18 07:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Hong Kong and Vienna

Vienna is 6 hours behind Hong Kong right now: Vienna is on CEST (UTC+2) and Hong Kong on HKT (UTC+8). That changes on Sun, Oct 25, when clocks go back in Vienna: then Vienna is 7 hours behind Hong Kong.

Time difference between Hong Kong and Vienna over the next 12 months
From	Difference	Why
Now	Vienna 6 hours behind	—
Sun, Oct 25	Vienna 7 hours behind	Clocks go back in Vienna
Sun, Mar 28, 2027	Vienna 6 hours behind	Clocks go forward in Vienna

Hong Kong is on Hong Kong Standard Time. Vienna is on Central European Standard Time.

Frequently Asked Questions: Hong Kong & Vienna Scheduling

What is the time difference between Hong Kong and Vienna?: Vienna is 6 hours behind Hong Kong right now: Vienna is on CEST (UTC+2) and Hong Kong on HKT (UTC+8). That changes on Sun, Oct 25, when clocks go back in Vienna: then Vienna is 7 hours behind Hong Kong.
What is the best time to schedule a meeting between Hong Kong and Vienna?: 3:00 PM to 5:00 PM in Hong Kong (9:00 AM to 11:00 AM in Vienna). That's when both cities are inside working hours, 9 AM to 5 PM, giving 2 hours of overlap today.
Does Hong Kong observe daylight saving time?: No. Hong Kong stays on HKT (UTC+8) all year, so its clocks don't change.
Does Vienna observe daylight saving time?: Yes. Vienna is on CEST (UTC+2) now, and its clocks go back 1 hour on Sun, Oct 25, to CET (UTC+1).
What time is it in Vienna when it's 9 AM in Hong Kong?: 3:00 AM in Vienna, on the same day.

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