Tokyo to Boston Time Converter
Boston is -13h behind Tokyo
Quick converter
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FROM
Tokyo
Japan
UTC+09:00
TO
Boston
United States
UTC-04:00
Date-aware conversion
Convert a specific date and time
Result
Thu, May 28, 2026 04:28
Tokyo: Thursday, May 28, 2026 5:28 PM GMT+9 to Boston: Thursday, May 28, 2026 4:28 AM EDT.
Boston is 13h behind Tokyo on this date
24-Hour Comparison
Every hour in Tokyo and the corresponding time in Boston. Green rows indicate business hours in Boston.
Time zones
Tokyo uses Asia/Tokyo (GMT+9) and Boston uses America/New_York (EDT). The difference can shift during daylight saving changes, so checking the exact date matters.
Best use
Use the green rows to spot normal working hours in Boston. For teams across more cities, open the meeting planner and compare up to five locations.
Plan a meetingMeeting guidance
Best time for Tokyo and Boston
There is no full business-hour overlap in the 24-hour table, so use a custom time or rotate meeting times for fairness. For important calls, check the meeting date because the offset can change when either location enters or leaves daylight saving time.
Compare meeting hoursQuick examples
City context
About these cities
About Tokyo
Tokyo is located in Japan (Asia). It uses the Asia/Tokyo timezone with a standard offset of UTC+09:00. It does not observe Daylight Saving Time. See the full Tokyo time page for live clock and planning details.
About Boston
Boston is located in United States (North America). It uses the America/New_York timezone with a standard offset of UTC-04:00. It observes DST, switching between EST and EDT. See the full Boston time page for live clock and planning details.
Frequently Asked Questions
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