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Time difference between Hanoi and Houston

Houston is 12 hours behind Hanoi.

Hanoi
Vietnam · Indochina Time
2:44 PM
Wednesday, October 21, 2026
Houston
United States · Central Daylight Time
2:44 AM
Wednesday, October 21, 2026
Compare more placesHouston to Hanoi

Hanoi to Houston time converter

Green rows are office hours in both places; light green rows are when both are awake.

HanoiHouston
12:00 AM12:00 PM (previous day)
1:00 AM1:00 PM (previous day)
2:00 AM2:00 PM (previous day)
3:00 AM3:00 PM (previous day)
4:00 AM4:00 PM (previous day)
5:00 AM5:00 PM (previous day)
6:00 AM6:00 PM (previous day)
7:00 AM7:00 PM (previous day)
8:00 AM8:00 PM (previous day)
9:00 AM9:00 PM (previous day)
10:00 AM10:00 PM (previous day)
11:00 AM11:00 PM (previous day)
12:00 PM12:00 AM
1:00 PM1:00 AM
2:00 PM2:00 AM
3:00 PM3:00 AM
4:00 PM4:00 AM
5:00 PM5:00 AM
6:00 PM6:00 AM
7:00 PM7:00 AM
8:00 PM8:00 AM
9:00 PM9:00 AM
10:00 PM10:00 AM
11:00 PM11:00 AM

Questions

What is the time difference between Hanoi and Houston?

Houston is 12 hours behind Hanoi. Hanoi is on UTC+7 and Houston is on UTC−5.

What time is it in Houston when it is 9 AM in Hanoi?

When it is 9:00 AM in Hanoi, it is 9:00 PM the previous day in Houston.

When is the best time to call Houston from Hanoi?

There are no shared office hours. The most comfortable time to call is 8:00 AM–10:00 AM in Hanoi (8:00 PM–10:00 PM in Houston); 8:00 PM–10:00 PM in Hanoi (8:00 AM–10:00 AM in Houston), when both places are awake.

Does the time difference between Hanoi and Houston change?

Yes. Because of daylight saving time, the difference changes on Sunday, November 1, 2026, when Houston will be 13 hours behind Hanoi.

Hanoi is 12 hours ahead of Houston. More: time in Hanoi · time in Houston

Time difference from Hanoi to other cities

All Hanoi time differences →

Time difference from Houston