Offset
The time difference between Eastern Time and Phnom Penh is 11 hours.
Eastern Time (EDT) is behind Phnom Penh (ICT).
EDT: UTC-4
ICT: UTC+7
Eastern Time is currently observing daylight saving time; Phnom Penh is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Eastern Time and Phnom Penh don't overlap on the same weekday. Phnom Penh is 11 hours ahead of Eastern Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–9 AM in Eastern Time (6 PM–8 PM in Phnom Penh) — suggest 8:00 AM Eastern Time (7:00 PM Phnom Penh).
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
Eastern Time is also known as EST, or EDT. To call United States, dial +1.
Phnom Penh uses Indochina Time (ICT). To call Cambodia, dial +855.
Phnom Penh is approximately 8,800 miles north of Eastern Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| EST | Phnom Penh | Day |
|---|---|---|
| 12:00 am | 11:00 am | Same day |
| 1:00 am | 12:00 pm | Same day |
| 2:00 am | 1:00 pm | Same day |
| 3:00 am | 2:00 pm | Same day |
| 4:00 am | 3:00 pm | Same day |
| 5:00 am | 4:00 pm | Same day |
| 6:00 am | 5:00 pm | Same day |
| 7:00 am | 6:00 pm | Same day |
| 8:00 am | 7:00 pm | Same day |
| 9:00 am | 8:00 pm | Same day |
| 10:00 am | 9:00 pm | Same day |
| 11:00 am | 10:00 pm | Same day |
| 12:00 pm | 11:00 pm | Same day |
| 1:00 pm | 12:00 am | +1 day |
| 2:00 pm | 1:00 am | +1 day |
| 3:00 pm | 2:00 am | +1 day |
| 4:00 pm | 3:00 am | +1 day |
| 5:00 pm | 4:00 am | +1 day |
| 6:00 pm | 5:00 am | +1 day |
| 7:00 pm | 6:00 am | +1 day |
| 8:00 pm | 7:00 am | +1 day |
| 9:00 pm | 8:00 am | +1 day |
| 10:00 pm | 9:00 am | +1 day |
| 11:00 pm | 10:00 am | +1 day |
Daylight saving time
Eastern Time observes daylight saving time; Phnom Penh does not. The offset between the two zones changes when Eastern Time transitions: on Sunday, November 1, 2026, clocks fall back from EDT to EST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:25 AM
- Sunset
- 8:27 PM
- Day length
- 15h 2m
- Sunrise
- 5:37 AM
- Sunset
- 6:24 PM
- Day length
- 12h 47m
Daylight overlap: 1h 59m — 5:25 AM–7:24 AM in Eastern Time (4:25 PM–6:24 PM in Phnom Penh). Both locations are in daylight during this window.
Cities in these zones
Cities in Eastern Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern Time
- EWR
- HPN
- JFK
- LGA
- TEB
- ILG
- PHL
- TTN
- CLT
- USA
Airports in Indochina Time
- KTI
Related conversions
Common conversions
- What is 9:00 am EST in Phnom Penh?
- 9:00 am EST is 8:00 pm Phnom Penh.
- What is 12:00 pm EST in Phnom Penh?
- 12:00 pm EST is 11:00 pm Phnom Penh.
- What is 12:30 pm EST in Phnom Penh?
- 12:30 pm EST is 11:30 pm Phnom Penh.
- What is 2:00 pm EST in Phnom Penh?
- 2:00 pm EST is 1:00 am Phnom Penh, the next day.
- What is 5:00 pm EST in Phnom Penh?
- 5:00 pm EST is 4:00 am Phnom Penh, the next day.
- What is 11:30 pm EST in Phnom Penh?
- 11:30 pm EST is 10:30 am Phnom Penh, the next day.