Houston, United States Hanoi, Vietnam
Compare time between Houston and Hanoi
Frequently Asked Questions
Houston is in the CDT timezone (UTC-5) and Hanoi is in the +07 timezone (UTC+7). The time difference between them is 12 hours.
Use the timeline above to find overlapping business hours between Houston and Hanoi. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).
Houston observes Daylight Saving Time, while Hanoi does not. When DST is active in Houston, the time difference changes by 1 hour.
Click the pencil icon next to the Houston clock and type any time. The Hanoi clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.