Tokyo to Boston time converter
Boston is 8 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 1:00 AM in Boston.
8:23 AM in Tokyo, Tuesday, October 20, 2026
Tokyo to Boston conversion table
Every hour of today in Tokyo and the matching time in Boston. Light rows are typical working hours (9:00–18:00).
| Tokyo | Boston |
|---|---|
| 12:00 AM | 4:00 PM−1 day |
| 1:00 AM | 5:00 PM−1 day |
| 2:00 AM | 6:00 PM−1 day |
| 3:00 AM | 7:00 PM−1 day |
| 4:00 AM | 8:00 PM−1 day |
| 5:00 AM | 9:00 PM−1 day |
| 6:00 AM | 10:00 PM−1 day |
| 7:00 AM | 11:00 PM−1 day |
| 8:00 AM | 12:00 AM |
| 9:00 AM | 1:00 AM |
| 10:00 AM | 2:00 AM |
| 11:00 AM | 3:00 AM |
| 12:00 PM | 4:00 AM |
| 1:00 PM | 5:00 AM |
| 2:00 PM | 6:00 AM |
| 3:00 PM | 7:00 AM |
| 4:00 PM | 8:00 AM |
| 5:00 PM | 9:00 AM |
| 6:00 PM | 10:00 AM |
| 7:00 PM | 11:00 AM |
| 8:00 PM | 12:00 PM |
| 9:00 PM | 1:00 PM |
| 10:00 PM | 2:00 PM |
| 11:00 PM | 3:00 PM |
Best time to call or meet
Both sides are at work from 5:00 PM – 6:00 PM in Tokyo (9:00 AM – 10:00 AM in Boston).
Daylight saving time and the difference
The difference changes during the year because Tokyo and Boston switch clocks on different dates:
- Oct 20, 2026 – Oct 25, 2026: -8h
- Oct 25, 2026 – Mar 28, 2027: -9h
- Mar 28, 2027 – Oct 20, 2027: -8h
Distance
Tokyo and Boston are 9,416 km (5,851 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Tokyo and Boston?
Boston is 8 hours behind Tokyo.
What time is it in Boston when it is 9 AM in Tokyo?
When it is 9:00 AM in Tokyo, it is 1:00 AM in Boston.
When is the best time to call Boston from Tokyo?
Both sides are at work from 5:00 PM – 6:00 PM in Tokyo (9:00 AM – 10:00 AM in Boston).
Does the time difference between Tokyo and Boston change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.