Sydney to New Castle time converter

New Castle is 15 hours behind Sydney. When it is 9:00 AM in Sydney, it is 6:00 PM (Mon, Oct 19) in New Castle.

Sydney AEDT

Tuesday, October 20, 2026

New Castle EDT

Monday, October 19, 2026

Sydney
New South Wales, Australia
Tue, Oct 20
AEDTUTC+11
New Castle
Pennsylvania, United States
Mon, Oct 19
EDTUTC-4-15h
Finding your time zone…
Shared working hours (9:00–18:00)

Sydney to New Castle conversion table

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

SydneyNew Castle
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 New Castle): 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 New Castle switch clocks on different dates:

  • Oct 20, 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 20, 2027: -15h

Distance

Sydney and New Castle are 15,461 km (9,607 miles) apart in a straight line.

More conversions

New Castle 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 New CastleLondon to New CastleLos Angeles to New CastleChicago to New CastleToronto to New CastleSão Paulo to New CastleParis to New CastleBerlin to New CastleMoscow to New CastleDubai to New CastleNew Delhi to New CastleBangkok to New Castle

Questions and answers

What is the time difference between Sydney and New Castle?

New Castle is 15 hours behind Sydney.

What time is it in New Castle when it is 9 AM in Sydney?

When it is 9:00 AM in Sydney, it is 6:00 PM (Mon, Oct 19) in New Castle.

When is the best time to call New Castle 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 New Castle): working hours on one side, early or late on the other.

Does the time difference between Sydney and New Castle change?

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