How to read it
Hong Kong and Chicago, side by side
Each row is one city's day, half an hour to a square, lined up by the hours along the bottom.
- 1Filled: at the desk, 9:00 to 18:00 where that city is.
- 2Grey: up early, up late, or the weekend.
- 3Outline: asleep.
- 4Red band: your slot. Read straight down to see the same moment in every city.
- 5A marks the best time for everyone; B, when there is one, the next best.
The red band is the best time to call on Wed, 21 Oct 2026: 09:00–10:00 in Hong Kong, which is 20:00–21:00 in Chicago.
Through the year
How the gap between Hong Kong and Chicago moves
Chicago is 13h behind Hong Kong today. Daylight saving moves it:
- Chicago 13h behind Hong Kong
- Chicago 14h behind Hong Kong
- Sun, 1 Nov 2026 Chicago's clocks go back an hour. Chicago is then 14h behind Hong Kong.
- Sun, 14 Mar 2027 Chicago's clocks go forward an hour. Chicago is then 13h behind Hong Kong.
Hour by hour
Hong Kong to Chicago time, hour by hour
On a working day (Wed, 21 Oct 2026), with working hours of 9:00 to 18:00 in both cities.
- Hong Kong starts work 09:00 20:00 Tue in Chicago Late
- Chicago starts work 09:00 22:00 in Hong Kong Asleep
- Hong Kong finishes work 18:00 05:00 in Chicago Asleep
- Chicago finishes work 18:00 07:00 Wed in Hong Kong Early
Show all 24 hours
| Hong Kong | Chicago |
|---|---|
| 00:00 Asleep | 11:00 Tue At desk |
| 01:00 Asleep | 12:00 Tue At desk |
| 02:00 Asleep | 13:00 Tue At desk |
| 03:00 Asleep | 14:00 Tue At desk |
| 04:00 Asleep | 15:00 Tue At desk |
| 05:00 Asleep | 16:00 Tue At desk |
| 06:00 Asleep | 17:00 Tue At desk |
| 07:00 Early | 18:00 Tue Late |
| 08:00 Early | 19:00 Tue Late |
| 09:00 At desk | 20:00 Tue Late |
| 10:00 At desk | 21:00 Tue Late |
| 11:00 At desk | 22:00 Tue Asleep |
| 12:00 At desk | 23:00 Tue Asleep |
| 13:00 At desk | 00:00 Asleep |
| 14:00 At desk | 01:00 Asleep |
| 15:00 At desk | 02:00 Asleep |
| 16:00 At desk | 03:00 Asleep |
| 17:00 At desk | 04:00 Asleep |
| 18:00 Late | 05:00 Asleep |
| 19:00 Late | 06:00 Asleep |
| 20:00 Late | 07:00 Early |
| 21:00 Late | 08:00 Early |
| 22:00 Asleep | 09:00 At desk |
| 23:00 Asleep | 10:00 At desk |
Questions
Questions people ask
What is the time difference between Hong Kong and Chicago?
Chicago is 13h behind Hong Kong (as of Wed, 21 Oct 2026). That changes on Sun, 1 Nov 2026, when Chicago's clocks go back: then Chicago is 14h behind Hong Kong.
What is the best time for a call between Hong Kong and Chicago?
On a working day, the best time for a call is 09:00–10:00 in Hong Kong (20:00–21:00 in Chicago) until 31 Oct 2026 and from 14 Mar 2027, and 09:00–10:00 in Hong Kong (19:00–20:00 in Chicago) from 1 Nov 2026 to 13 Mar 2027.
Does Hong Kong change its clocks?
No. Hong Kong stays on UTC+8 all year.
Does Chicago change its clocks?
Yes. Chicago moves its clocks back an hour on Sun, 1 Nov 2026, and forward an hour on Sun, 14 Mar 2027.
More city pairs
Compare more cities
Hong Kong and…
- Hong Kong and Mumbai
- Hong Kong and Delhi
- Hong Kong and Bengaluru
- Hong Kong and Dubai
- Hong Kong and Abu Dhabi
- Hong Kong and Riyadh
- Hong Kong and Doha
- Hong Kong and Singapore
- Hong Kong and Tokyo
- Hong Kong and Sydney
- Hong Kong and London
- Hong Kong and Paris
- Hong Kong and Berlin
- Hong Kong and Amsterdam
- Hong Kong and New York
- Hong Kong and Toronto
- Hong Kong and Los Angeles
- Hong Kong and San Francisco
Chicago and…
- Chicago and Mumbai
- Chicago and Delhi
- Chicago and Bengaluru
- Chicago and Dubai
- Chicago and Abu Dhabi
- Chicago and Riyadh
- Chicago and Doha
- Chicago and Singapore
- Chicago and Tokyo
- Chicago and Sydney
- Chicago and London
- Chicago and Paris
- Chicago and Berlin
- Chicago and Amsterdam
- Chicago and New York
- Chicago and Toronto
- Chicago and Los Angeles
- Chicago and San Francisco
From the team behind 10:10
Running an event across time zones?
C4E has spent twenty years running conferences, dealer meets and offsites in more than 40 countries, with clients, speakers and crews in different time zones. 10:10 is one of the tools we built for our own shows. It is free, with no account and nothing upsold.