London to Back Bay time converter

Back Bay is 5 hours behind London. When it is 9:00 AM in London, it is 4:00 AM in Back Bay.

London BST

Monday, October 19, 2026

Back Bay EDT

Monday, October 19, 2026

London
United Kingdom
Mon, Oct 19
BSTUTC+1
Back Bay
Massachusetts, United States
Mon, Oct 19
EDTUTC-4-5h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Back Bay conversion table

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

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

Best time to call or meet

Both sides are at work from 2:00 PM – 6:00 PM in London (9:00 AM – 1:00 PM in Back Bay).

Daylight saving time and the difference

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

  • Oct 19, 2026 – Oct 25, 2026: -5h
  • Oct 25, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Mar 28, 2027: -4h
  • Mar 28, 2027 – Oct 19, 2027: -5h

Distance

London and Back Bay are 5,267 km (3,273 miles) apart in a straight line.

More conversions

Back Bay to LondonLondon to New YorkLondon to Los AngelesLondon to ChicagoLondon to TorontoLondon to São PauloLondon to ParisLondon to BerlinLondon to MoscowLondon to DubaiLondon to New DelhiLondon to BangkokLondon to Singapore
New York 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 BaySingapore to Back Bay

Questions and answers

What is the time difference between London and Back Bay?

Back Bay is 5 hours behind London.

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

When it is 9:00 AM in London, it is 4:00 AM in Back Bay.

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

Both sides are at work from 2:00 PM – 6:00 PM in London (9:00 AM – 1:00 PM in Back Bay).

Does the time difference between London 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.