TIME ZONE CONVERTER
New York to Hanoi
Time Converter
Convert New York, United States to Hanoi, Vietnam. Compare dates, seasonal differences and meeting hours.
New York is 11h or 12h behind Hanoi in 2026, depending on the date.
9 AM New York = 9 PM Hanoi
Selected date: November 10, 2026.
THE QUICK REFERENCE
CSVNew York to Hanoi conversion table
November 10, 2026 · Date changes are marked.
View the full 24-hour table
| New York | Hanoi |
|---|---|
| 12:00 AM | 12:00 PM |
| 1:00 AM | 1:00 PM |
| 2:00 AM | 2:00 PM |
| 3:00 AM | 3:00 PM |
| 4:00 AM | 4:00 PM |
| 5:00 AM | 5:00 PM |
| 6:00 AM | 6:00 PM |
| 7:00 AM | 7:00 PM |
| 8:00 AM | 8:00 PM |
| 9:00 AM | 9:00 PM |
| 10:00 AM | 10:00 PM |
| 11:00 AM | 11:00 PM |
| New York | Hanoi |
|---|---|
| 12:00 PM | 12:00 AM +1 day |
| 1:00 PM | 1:00 AM +1 day |
| 2:00 PM | 2:00 AM +1 day |
| 3:00 PM | 3:00 AM +1 day |
| 4:00 PM | 4:00 AM +1 day |
| 5:00 PM | 5:00 AM +1 day |
| 6:00 PM | 6:00 AM +1 day |
| 7:00 PM | 7:00 AM +1 day |
| 8:00 PM | 8:00 AM +1 day |
| 9:00 PM | 9:00 AM +1 day |
| 10:00 PM | 10:00 AM +1 day |
| 11:00 PM | 11:00 AM +1 day |
Starting with the Hanoi working day
These examples start on 2026-11-10 in Hanoi.
09:00 Hanoi21:00 →New York · 2026-11-09
17:00 Hanoi05:00 →New York · 2026-11-10
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 New York to Hanoi throughout 2026
Keeping 09:00 on the New York clock produces 2 different destination clock/date answers in 2026. The ranges below use New York calendar dates, including transition days.
| Dates in New York · 2026 | Hanoi answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Mar 766 dates | 21:00Same date | UTC−05:00 → UTC+07:00 | |
| Mar 8 – Oct 31238 dates | 20:00Same date | UTC−04:00 → UTC+07:00 | |
| Nov 1 – Dec 3161 dates | 21:00Same date | UTC−05:00 → UTC+07:00 |
Every calendar date is included, not just workdays. Date ranges include both endpoints. Based on IANA 2026e; future rules may change.
DON’T LOSE A DAY
When does New York time become a different date in Hanoi?
Your complete source day: 2026-11-10. Each range shows which destination date to use.
New York · 2026-11-1000:00–12:00UTC−05:00
Hanoi · 2026-11-1012:00–24:00UTC+07:00 Same date
New York · 2026-11-1012:00–24:00UTC−05:00
Hanoi · 2026-11-1100:00–12:00UTC+07:00 Next day
Range starts are included; ends are excluded. 24:00 means midnight at the end of that date. Repeated hours appear separately with their UTC offsets. The strip is proportional to elapsed time.
THE BIGGER PICTURE
2026A year of time differences.
How Hanoi compares with New York throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
+12h
+11h
+12h
New York changes its UTC offset in 2026. Hanoi keeps one UTC offset this year.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | Hanoi vs New York |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 8 Mar 2026, 07:00 UTC | 12h ahead |
| 8 Mar 2026, 07:00 UTC | 1 Nov 2026, 06:00 UTC | 11h ahead |
| 1 Nov 2026, 06:00 UTC | 1 Jan 2027, 00:00 UTC | 12h ahead |
CLOCK CHANGES
What changes at the next clock adjustment?
Exact periods outside the most common difference in 2026
The most frequent difference has Hanoi 11h ahead relative to New York. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with New York |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 8 Mar 2026, 07:00 UTC | 12h ahead |
| 1 Nov 2026, 06:00 UTC | 1 Jan 2027, 00:00 UTC | 12h ahead |
PLAN BEYOND A SINGLE DAY
Daily CSVNew York–Hanoi working hours through 2026
Every date calculated with your working windows. 261 selected New York workdays; public holidays are not applied.
Least shared time0h
Most common0h
Most shared time0h
Days without a 60-min slot261 / 261
One fixed start time does not fit every working day.
Your working windows never overlap on the selected host workdays this year. Adjust working days, hours or duration above, or use different seasonal meeting times.
New York: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. Hanoi: 09:00–17:00, Mon, Tue, Wed, Thu, Fri.
Calculation details and repeated hours
Overnight shifts belong to their start weekday. Host workday means the source calendar date. Repeated local times use the first occurrence.
TWO PLACES. ONE CONNECTION.
≈ 13,150 km apartAcross the map. Across the clock.
THE DETAILS THAT MATTER
New York to Hanoi: useful answers
Why is the New York to Hanoi difference sometimes 11 hours and sometimes 12 hours?
New York is 11h or 12h behind Hanoi in 2026, depending on the date. New York changes its UTC offset in 2026. Hanoi keeps one UTC offset this year.
Does the New York–Hanoi time difference change in 2026?
The published rules produce 3 periods with 2 different offsets in 2026. See the annual chart for the exact boundaries of each period.
Does this conversion change the calendar date?
09:00 in New York on 2026-11-10 is 21:00 in Hanoi on 2026-11-10. This selected time stays on the same date in both places. Other times can cross midnight.
Can New York and Hanoi meet during working hours?
Your selected working windows have no shared time on 2026-11-10. The planner shows alternatives and how many minutes fall outside each person's working hours. Try another date or adjust the windows.
Related time-zone meanings and conversions
Choose the question you need answered
Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology