What time is it in New York when it is noon in Tokyo?
The converter above answers that for whichever date you pick — and the date matters, because the gap is not constant through the year.
Tokyo to New York
Convert a time from Tokyo to New York on any date. New York changes its clocks for daylight saving and Tokyo does not, so the difference between them shifts by an hour twice a year.
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Difference—
Tokyo and New York
Tokyo runs on Asia/Tokyo and New York on America/New_York. New York changes its clocks for daylight saving and Tokyo does not, so the difference between them shifts by an hour twice a year.
This is why the converter above asks for a date. A meeting arranged in October for a date in November can land an hour off if you assume today's difference still holds — the clocks move between the two moments, and only one side may move.
The safest habit for scheduling across zones is to agree on the local time in one place and let each side convert, rather than agreeing on "the difference". The difference is a property of a date, not of a pair of cities.
Frequently asked questions
Is the difference between Tokyo and New York always the same?
New York changes its clocks for daylight saving and Tokyo does not, so the difference between them shifts by an hour twice a year.
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