Tokyo to Back Bay time converter

Back Bay is 13 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 8:00 PM (Sat, Oct 17) in Back Bay.

Tokyo JST

Sunday, October 18, 2026

Back Bay EDT

Sunday, October 18, 2026

Tokyo
Japan
Sun, Oct 18
JSTUTC+9
Back Bay
Massachusetts, United States
Sun, Oct 18
EDTUTC-4-13h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Back Bay conversion table

Every hour of today in Tokyo and the matching time in Back Bay. Light rows are typical working hours (9:00–18:00).

TokyoBack Bay
12:00 AM11:00 AM−1 day
1:00 AM12:00 PM−1 day
2:00 AM1:00 PM−1 day
3:00 AM2:00 PM−1 day
4:00 AM3:00 PM−1 day
5:00 AM4:00 PM−1 day
6:00 AM5:00 PM−1 day
7:00 AM6:00 PM−1 day
8:00 AM7:00 PM−1 day
9:00 AM8:00 PM−1 day
10:00 AM9:00 PM−1 day
11:00 AM10:00 PM−1 day
12:00 PM11:00 PM−1 day
1:00 PM12:00 AM
2:00 PM1:00 AM
3:00 PM2:00 AM
4:00 PM3:00 AM
5:00 PM4:00 AM
6:00 PM5:00 AM
7:00 PM6:00 AM
8:00 PM7:00 AM
9:00 PM8:00 AM
10:00 PM9:00 AM
11:00 PM10:00 AM

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Tokyo (8:00 PM – 10:00 PM in Back Bay): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Tokyo and Back Bay switch clocks on different dates:

  • Oct 18, 2026 – Nov 1, 2026: -13h
  • Nov 1, 2026 – Mar 14, 2027: -14h
  • Mar 14, 2027 – Oct 18, 2027: -13h

Distance

Tokyo and Back Bay are 10,791 km (6,705 miles) apart in a straight line.

More conversions

Back Bay to TokyoTokyo to New YorkTokyo to LondonTokyo to Los AngelesTokyo to ChicagoTokyo to TorontoTokyo to São PauloTokyo to ParisTokyo to BerlinTokyo to MoscowTokyo to DubaiTokyo to New DelhiTokyo to Bangkok
New York to Back BayLondon to Back BayLos Angeles to Back BayChicago to Back BayToronto to Back BaySão Paulo to Back BayParis to Back BayBerlin to Back BayMoscow to Back BayDubai to Back BayNew Delhi to Back BayBangkok to Back Bay

Questions and answers

What is the time difference between Tokyo and Back Bay?

Back Bay is 13 hours behind Tokyo.

What time is it in Back Bay when it is 9 AM in Tokyo?

When it is 9:00 AM in Tokyo, it is 8:00 PM (Sat, Oct 17) in Back Bay.

When is the best time to call Back Bay from Tokyo?

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Tokyo (8:00 PM – 10:00 PM in Back Bay): working hours on one side, early or late on the other.

Does the time difference between Tokyo and Back Bay change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.