United States
Cambodia
Houston to Phnom Penh Time Difference
Phnom Penh is 12 hours ahead of Houston
Houston vs Phnom Penh — At a Glance
Houston to Phnom Penh — Hour-by-Hour
About Houston and Phnom Penh
Houston (population: 2.3M) is known for NASA's Johnson Space Center, energy sector capital, and the Texas Medical Center. Phnom Penh (population: 2.1M) is known for the Royal Palace, Mekong River, and Cambodia's emerging digital economy.
Business Hours Overlap
Phnom Penh is a national capital, so official government hours (typically 9 AM–5 PM) are the primary window for diplomatic and administrative communication with Houston.
Calling Between Cities
With 12 hours between Houston (+1) and Phnom Penh (+855), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
Houston uses USD while Phnom Penh uses KHR. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Houston and Phnom Penh share English as a common language, which simplifies business communication.
Use our world clock tool to compare Houston and Phnom Penh visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Houston and Phnom Penh?
Phnom Penh, Cambodia is 12 hours ahead of Houston, United States. Houston is in the America/Chicago timezone (UTC-5) and Phnom Penh is in the Asia/Bangkok timezone (UTC+7).
When it's noon in Houston, what time is it in Phnom Penh?
When it's 12:00 PM (noon) in Houston, it's 12:00 AM in Phnom Penh.
What is the best time to call Phnom Penh from Houston?
The best time to call Phnom Penh from Houston is during the overlapping business hours. When it's 9 AM in Houston, it's 9:00 PM in Phnom Penh. Aim for late morning to early afternoon in Houston for the best chance of reaching someone during working hours.
What currency does Phnom Penh use?
Phnom Penh, Cambodia uses KHR. Houston 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. Houston also speaks English, making communication easier.
How do I dial Phnom Penh from Houston?
To call Phnom Penh from Houston, dial your international access code followed by +855 and the local number. Houston uses country code +1 and Phnom Penh uses +855.
