Offset
The time difference between Phnom Penh and Chicago is 12 hours.
Phnom Penh (ICT) is ahead of Chicago (CDT).
ICT: UTC+7
CDT: UTC-5
Chicago is currently observing daylight saving time; Phnom Penh is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Phnom Penh and Chicago don't overlap on the same weekday. Chicago is 12 hours behind Phnom Penh.
With some flexibility, there’s a workable window outside standard hours:
- 7 PM–8 PM in Phnom Penh (7 AM–8 AM in Chicago) — suggest 7:00 PM Phnom Penh (7:00 AM Chicago).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Phnom Penh uses Indochina Time (ICT). To call Cambodia, dial +855.
Chicago uses Central Time (CST, or CDT). To call United States, dial +1.
Chicago is approximately 8,650 miles north of Phnom Penh.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Phnom Penh | Chicago | Day |
|---|---|---|
| 12:00 am | 12:00 pm | -1 day |
| 1:00 am | 1:00 pm | -1 day |
| 2:00 am | 2:00 pm | -1 day |
| 3:00 am | 3:00 pm | -1 day |
| 4:00 am | 4:00 pm | -1 day |
| 5:00 am | 5:00 pm | -1 day |
| 6:00 am | 6:00 pm | -1 day |
| 7:00 am | 7:00 pm | -1 day |
| 8:00 am | 8:00 pm | -1 day |
| 9:00 am | 9:00 pm | -1 day |
| 10:00 am | 10:00 pm | -1 day |
| 11:00 am | 11:00 pm | -1 day |
| 12:00 pm | 12:00 am | Same day |
| 1:00 pm | 1:00 am | Same day |
| 2:00 pm | 2:00 am | Same day |
| 3:00 pm | 3:00 am | Same day |
| 4:00 pm | 4:00 am | Same day |
| 5:00 pm | 5:00 am | Same day |
| 6:00 pm | 6:00 am | Same day |
| 7:00 pm | 7:00 am | Same day |
| 8:00 pm | 8:00 am | Same day |
| 9:00 pm | 9:00 am | Same day |
| 10:00 pm | 10:00 am | Same day |
| 11:00 pm | 11:00 am | Same day |
Daylight saving time
Chicago observes daylight saving time; Phnom Penh does not. The offset between the two zones changes when Chicago transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:37 AM
- Sunset
- 6:24 PM
- Day length
- 12h 47m
- Sunrise
- 5:16 AM
- Sunset
- 8:26 PM
- Day length
- 15h 9m
Daylight overlap: 1h 8m — 5:16 PM–6:24 PM in Phnom Penh (5:16 AM–6:24 AM in Chicago). Both locations are in daylight during this window.
Cities in these zones
Other cities in Central Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Indochina Time
- KTI
Airports in Central Time
- GYY
- MDW
- ORD
- HOU
- IAH
- SAT
- DAL
- DFW
- AUS
- BNA
Related conversions
Common conversions
- What is 9:00 am Phnom Penh in Chicago?
- 9:00 am Phnom Penh is 9:00 pm Chicago, the previous day.
- What is 12:00 pm Phnom Penh in Chicago?
- 12:00 pm Phnom Penh is 12:00 am Chicago.
- What is 12:30 pm Phnom Penh in Chicago?
- 12:30 pm Phnom Penh is 12:30 am Chicago.
- What is 2:00 pm Phnom Penh in Chicago?
- 2:00 pm Phnom Penh is 2:00 am Chicago.
- What is 5:00 pm Phnom Penh in Chicago?
- 5:00 pm Phnom Penh is 5:00 am Chicago.
- What is 11:30 pm Phnom Penh in Chicago?
- 11:30 pm Phnom Penh is 11:30 am Chicago.