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Time difference between Boston and Hanoi

Hanoi is 11 hours ahead of Boston.

Boston
United States · Eastern Daylight Time
3:43 AM
Wednesday, October 21, 2026
Hanoi
Vietnam · Indochina Time
2:43 PM
Wednesday, October 21, 2026
Compare more placesHanoi to Boston

Boston to Hanoi time converter

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

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

Questions

What is the time difference between Boston and Hanoi?

Hanoi is 11 hours ahead of Boston. Boston is on UTC−4 and Hanoi is on UTC+7.

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

When it is 9:00 AM in Boston, it is 8:00 PM in Hanoi.

When is the best time to call Hanoi from Boston?

There are no shared office hours. The most comfortable time to call is 8:00 AM–11:00 AM in Boston (7:00 PM–10:00 PM in Hanoi); 9:00 PM–10:00 PM in Boston (8:00 AM–9:00 AM in Hanoi), when both places are awake.

Does the time difference between Boston and Hanoi change?

Yes. Because of daylight saving time, the difference changes on Sunday, November 1, 2026, when Hanoi will be 12 hours ahead of Boston.

Boston is 11 hours behind Hanoi. More: time in Boston · time in Hanoi

Time difference from Boston to other cities

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Time difference from Hanoi