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Time difference between Hanoi and Boston

Boston is 11 hours behind Hanoi.

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

Hanoi to Boston time converter

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

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

Questions

What is the time difference between Hanoi and Boston?

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

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

When it is 9:00 AM in Hanoi, it is 10:00 PM the previous day in Boston.

When is the best time to call Boston from Hanoi?

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

Does the time difference between Hanoi and Boston change?

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

Hanoi is 11 hours ahead of Boston. More: time in Hanoi · time in Boston

Time difference from Hanoi to other cities

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Time difference from Boston