Offset
The time difference between Central Time and Phnom Penh is 12 hours.
Central Time (CDT) is behind Phnom Penh (ICT).
CDT: UTC-5
ICT: UTC+7
Central Time is currently observing daylight saving time; Phnom Penh is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Central Time and Phnom Penh don't overlap on the same weekday. Phnom Penh is 12 hours ahead of Central Time.
With some flexibility, there are two workable windows outside standard hours, depending on which side takes the early or late slot:
- 7 AM–8 AM in Central Time (7 PM–8 PM in Phnom Penh) — suggest 7:00 AM Central Time (7:00 PM Phnom Penh).
- 7 PM–8 PM in Central Time (7 AM–8 AM the next day in Phnom Penh) — suggest 7:00 PM Central Time (7:00 AM Phnom Penh).
Either is an early start or late finish for one side, but workable 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
Central Time is also known as CST, or CDT. To call United States, dial +1.
Phnom Penh uses Indochina Time (ICT). To call Cambodia, dial +855.
Phnom Penh is approximately 8,650 miles north of Central Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| CST | Phnom Penh | Day |
|---|---|---|
| 12:00 am | 12:00 pm | Same day |
| 1:00 am | 1:00 pm | Same day |
| 2:00 am | 2:00 pm | Same day |
| 3:00 am | 3:00 pm | Same day |
| 4:00 am | 4:00 pm | Same day |
| 5:00 am | 5:00 pm | Same day |
| 6:00 am | 6:00 pm | Same day |
| 7:00 am | 7:00 pm | Same day |
| 8:00 am | 8:00 pm | Same day |
| 9:00 am | 9:00 pm | Same day |
| 10:00 am | 10:00 pm | Same day |
| 11:00 am | 11:00 pm | Same day |
| 12:00 pm | 12:00 am | +1 day |
| 1:00 pm | 1:00 am | +1 day |
| 2:00 pm | 2:00 am | +1 day |
| 3:00 pm | 3:00 am | +1 day |
| 4:00 pm | 4:00 am | +1 day |
| 5:00 pm | 5:00 am | +1 day |
| 6:00 pm | 6:00 am | +1 day |
| 7:00 pm | 7:00 am | +1 day |
| 8:00 pm | 8:00 am | +1 day |
| 9:00 pm | 9:00 am | +1 day |
| 10:00 pm | 10:00 am | +1 day |
| 11:00 pm | 11:00 am | +1 day |
Daylight saving time
Central Time observes daylight saving time; Phnom Penh does not. The offset between the two zones changes when Central Time 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
- 5:16 AM
- Sunset
- 8:26 PM
- Day length
- 15h 10m
- Sunrise
- 5:37 AM
- Sunset
- 6:24 PM
- Day length
- 12h 47m
Daylight overlap: 1h 8m — 5:16 AM–6:24 AM in Central Time (5:16 PM–6:24 PM in Phnom Penh). Both locations are in daylight during this window.
Cities in these zones
Cities in Central Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Central Time
- GYY
- MDW
- ORD
- HOU
- IAH
- SAT
- DAL
- DFW
- AUS
- BNA
Airports in Indochina Time
- KTI
Related conversions
Common conversions
- What is 9:00 am CST in Phnom Penh?
- 9:00 am CST is 9:00 pm Phnom Penh.
- What is 12:00 pm CST in Phnom Penh?
- 12:00 pm CST is 12:00 am Phnom Penh, the next day.
- What is 12:30 pm CST in Phnom Penh?
- 12:30 pm CST is 12:30 am Phnom Penh, the next day.
- What is 2:00 pm CST in Phnom Penh?
- 2:00 pm CST is 2:00 am Phnom Penh, the next day.
- What is 5:00 pm CST in Phnom Penh?
- 5:00 pm CST is 5:00 am Phnom Penh, the next day.
- What is 11:30 pm CST in Phnom Penh?
- 11:30 pm CST is 11:30 am Phnom Penh, the next day.