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Time Difference: Boston to Tokyo

🇺🇸BostonUTC-5
vs
🇯🇵TokyoUTC+9
🇺🇸
Boston, US
Fri, May 29
🇯🇵
Tokyo, Japan
Fri, May 29

Click a time to convert

Time Difference
13 hours
Tokyo is 13 hours ahead of Boston
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🇺🇸
Boston
View city page
🇯🇵
Tokyo
View city page

Boston vs Tokyo timezone guide

Boston (US) uses the America/New_York timezone at UTC-5, while Tokyo (Japan) uses Asia/Tokyo at UTC+9. This means Tokyo is 14 hours ahead of Boston (based on standard offsets — the live difference above accounts for daylight saving time).

Best meeting times between Boston and Tokyo

Standard 9-to-5 working hours in Boston and Tokyo do not overlap. To meet synchronously, one side will need to start early or stay late — see the hour-by-hour planner below for the least disruptive options.

Hour-by-hour planner

BostonTokyoStatus
6am7pmBoston early, Tokyo evening
7am8pmBoston early, Tokyo evening
8am9pmBoston early, Tokyo evening
9am10pmBoston working hours, Tokyo late evening
10am11pmBoston working hours, Tokyo late evening
11am12amBoston working hours, Tokyo asleep
12pm1amBoston working hours, Tokyo asleep
1pm2amBoston working hours, Tokyo asleep
2pm3amBoston working hours, Tokyo asleep
3pm4amBoston working hours, Tokyo asleep
4pm5amBoston working hours, Tokyo asleep
5pm6amBoston evening, Tokyo early
6pm7amBoston evening, Tokyo early
7pm8amBoston evening, Tokyo early
8pm9amOne side outside 9-to-5 but still awake
9pm10amOne side outside 9-to-5 but still awake
10pm11amBoston late evening, Tokyo working hours

Green = standard working hours (9 AM – 5 PM). Amber = early (6–9 AM). Orange = evening (5–10 PM). Grey = asleep or late.

Daylight saving time between Boston and Tokyo

Boston observes daylight saving time, but Tokyo does not. That means the difference between the two cities changes seasonally — by one hour, around Boston's transition dates.

  • Dec 31 → Mar 8Boston is 14 hours behind Tokyo
  • Mar 8 → Nov 1Boston is 13 hours behind Tokyo
  • Nov 1 → Dec 31Boston is 14 hours behind Tokyo

Distance between Boston and Tokyo

Great-circle distance
10,794 km
Direct flight time
~13h 42m

Boston and Tokyo are 10,794 km apart along the great-circle route. A direct flight takes roughly ~13h 42m, depending on aircraft type, winds, and routing.

More comparisons

Boston to New YorkBoston to LondonBoston to SydneyTokyo to New YorkTokyo to LondonTokyo to SydneyTokyo to Dubai

Frequently asked questions

What is the time difference between Boston and Tokyo?
The current time difference is 13 hours. Boston is currently 13 hours behind Tokyo.
Is Boston ahead of Tokyo?
No. Boston is currently 13 hours behind Tokyo.
What time is it in Tokyo when it's 9 AM in Boston?
When it's 9 AM in Boston, it's 10pm in Tokyo.
When is the best time to schedule a meeting between Boston and Tokyo?
Standard 9-to-5 working hours in Boston and Tokyo do not overlap. To meet synchronously, one side will need to start before 9 AM or work past 5 PM — see the planner above for the least disruptive options.
Do Boston and Tokyo observe daylight saving time?
Boston observes daylight saving time, but Tokyo does not — the difference between the two cities changes by one hour around the DST transition dates.
How far apart are Boston and Tokyo?
Boston and Tokyo are 10,794 km apart along the great-circle route. A direct flight takes roughly 13 hours 42 minutes.