No overlap — one side will join outside working hours
CST (Chicago)
HKT (Hong Kong)
00:00
13:00Working
01:00
14:00Working
02:00
15:00Working
03:00
16:00Working
04:00
17:00
05:00
18:00
06:00
19:00
07:00
20:00
08:00
21:00
09:00Working
22:00off
10:00Working
23:00off
11:00Working
00:00+1doff
12:00Working
01:00+1doff
13:00Working
02:00+1doff
14:00Working
03:00+1doff
15:00Working
04:00+1doff
16:00Working
05:00+1doff
17:00
06:00+1d
18:00
07:00+1d
19:00
08:00+1d
20:00
09:00+1dWorking
21:00
10:00+1dWorking
22:00
11:00+1dWorking
23:00
12:00+1dWorking
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between cst and hkt?
Central Standard Time (cst) is UTC-5 and Hong Kong Time (hkt) is UTC+8. The difference between them is 13 hours.
Where is cst used?
Central Standard Time (cst) is used in USA and surrounding regions. The IANA timezone identifier is America/Chicago. Note: cst is ambiguous and may refer to other timezones.
Where is hkt used?
Hong Kong Time (hkt) is used in Hong Kong and surrounding regions. The IANA timezone identifier is Asia/Hong_Kong.
How do I convert cst to hkt?
Use the interactive converter above. Drag the time slider to any cst time and the hkt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
CST (Chicago) vs HKT (Hong Kong) — time difference
CST (Chicago) is 13 hours behind HKT (Hong Kong). At noon in CST (Chicago), your contact in HKT (Hong Kong) sees 01:00.
CST (Chicago) runs on America/Chicago; HKT (Hong Kong) runs on Asia/Hong_Kong. Together they are 13 hours apart.
Shared working hours
There is no business hours overlap between CST (Chicago) and HKT (Hong Kong) during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best call times between these locations
CST (Chicago) and HKT (Hong Kong) have no shared working window. These slots minimize out-of-hours disruption for both sides.
16:00 Chicago / 05:00 Hong Kong⚡ One side off-hours
⚠️ 4h before working hours in Hong Kong
20:00 Chicago / 09:00 Hong Kong⚡ One side off-hours
⚠️ 4h after working hours in Chicago
15:00 Chicago / 04:00 Hong Kong⚡ One side off-hours
⚠️ 5h before working hours in Hong Kong
Working hours defined as 09:00–17:00 local time for each location.
Public holidays for both locations
⚡ Holiday alerts for both locations, double-check schedules before confirming.
CST (Chicago)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
HKT (Hong Kong)7 holidays
Jun 19Dragon Boat FestivalSOON
Jul 1Hong Kong Special Administrative Region Establishment DaySOON
Sep 26Day following the Mid-Autumn Festival
Oct 1National Day
Oct 19Chung Yeung Festival
Scheduling between CST (Chicago) and HKT (Hong Kong)
A 13-hour difference separates CST (Chicago) (USA) and HKT (Hong Kong) (Hong Kong) — wide enough that standard business hours don't align at all. Scheduling requires deliberate compromise from both sides.
💡 Scheduling tips for these locations
⚡
A 16:00 meeting in CST (Chicago) means 05:00 in HKT (Hong Kong) (4h before working hours in Hong Kong).
⚡
A 20:00 meeting in CST (Chicago) means 09:00 in HKT (Hong Kong) (4h after working hours in Chicago).
⚡
A 15:00 meeting in CST (Chicago) means 04:00 in HKT (Hong Kong) (5h before working hours in Hong Kong).
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am CST (Chicago)".
