Sydney to Back Bay time converter

Back Bay is 15 hours behind Sydney. When it is 9:00 AM in Sydney, it is 6:00 PM (Sun, Oct 18) in Back Bay.

Sydney AEDT

Monday, October 19, 2026

Back Bay EDT

Sunday, October 18, 2026

Sydney
New South Wales, Australia
Mon, Oct 19
AEDTUTC+11
Back Bay
Massachusetts, United States
Sun, Oct 18
EDTUTC-4-15h
Finding your time zone…
Shared working hours (9:00–18:00)

Sydney to Back Bay conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Sydney (4:00 PM – 6:00 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 Sydney and Back Bay switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: -15h
  • Nov 1, 2026 – Mar 14, 2027: -16h
  • Mar 14, 2027 – Apr 4, 2027: -15h
  • Apr 4, 2027 – Oct 3, 2027: -14h
  • Oct 3, 2027 – Oct 19, 2027: -15h

Distance

Sydney and Back Bay are 16,238 km (10,090 miles) apart in a straight line.

More conversions

Back Bay to SydneySydney to New YorkSydney to LondonSydney to Los AngelesSydney to ChicagoSydney to TorontoSydney to São PauloSydney to ParisSydney to BerlinSydney to MoscowSydney to DubaiSydney to New DelhiSydney 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 Sydney and Back Bay?

Back Bay is 15 hours behind Sydney.

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

When it is 9:00 AM in Sydney, it is 6:00 PM (Sun, Oct 18) in Back Bay.

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

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Sydney (4:00 PM – 6:00 PM in Back Bay): working hours on one side, early or late on the other.

Does the time difference between Sydney 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.