United States
Cambodia
Washington D.C. to Phnom Penh Time Difference
Phnom Penh is 11 hours ahead of Washington D.C.
Washington D.C. vs Phnom Penh — At a Glance
Washington D.C. to Phnom Penh — Hour-by-Hour
About Washington D.C. and Phnom Penh
Washington D.C. (population: 0.7M) is known for the U.S. capital, the White House, Congress, and the Smithsonian museums. Phnom Penh (population: 2.1M) is known for the Royal Palace, Mekong River, and Cambodia's emerging digital economy.
Business Hours Overlap
Washington D.C. is a national capital, so official government hours (typically 9 AM–5 PM) are the primary window for diplomatic and administrative communication with Phnom Penh.
Calling Between Cities
With 11 hours between Washington D.C. (+1) and Phnom Penh (+855), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
Washington D.C. uses USD while Phnom Penh uses KHR. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Washington D.C. and Phnom Penh share English as a common language, which simplifies business communication.
Use our world clock tool to compare Washington D.C. and Phnom Penh visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Washington D.C. and Phnom Penh?
Phnom Penh, Cambodia is 11 hours ahead of Washington D.C., United States. Washington D.C. is in the America/New York timezone (UTC-4) and Phnom Penh is in the Asia/Bangkok timezone (UTC+7).
When it's noon in Washington D.C., what time is it in Phnom Penh?
When it's 12:00 PM (noon) in Washington D.C., it's 11:00 PM in Phnom Penh.
What is the best time to call Phnom Penh from Washington D.C.?
The best time to call Phnom Penh from Washington D.C. is during the overlapping business hours. When it's 9 AM in Washington D.C., it's 8:00 PM in Phnom Penh. Aim for late morning to early afternoon in Washington D.C. for the best chance of reaching someone during working hours.
What currency does Phnom Penh use?
Phnom Penh, Cambodia uses KHR. Washington D.C. uses USD. You will need to check the current exchange rate for transactions between the two.
What language is spoken in Phnom Penh?
The primary languages in Phnom Penh are Khmer, English. Washington D.C. also speaks English, making communication easier.
How do I dial Phnom Penh from Washington D.C.?
To call Phnom Penh from Washington D.C., dial your international access code followed by +855 and the local number. Washington D.C. uses country code +1 and Phnom Penh uses +855.
