New York to Sydney: The Core Pair

The time difference between the USA and Australia depends on which US and Australian cities you're comparing, and the time of year — because both countries observe Daylight Saving Time on opposite schedules.

January to March (AU summer, US winter): New York on EST (UTC−5), Sydney on AEDT (UTC+11) — Sydney is 16 hours ahead. April to October (both on standard/winter time): New York on EDT (UTC−4), Sydney on AEST (UTC+10) — Sydney is 14 hours ahead. November (US on EST, AU on AEDT): Sydney is 16 hours ahead.

Los Angeles to Sydney

AU summer / US winter: LA on PST (UTC−8), Sydney on AEDT (UTC+11) — Sydney is 19 hours ahead. Both on standard time: LA on PDT (UTC−7), Sydney on AEST (UTC+10) — Sydney is 17 hours ahead.

Quick Conversions: New York to Sydney

When the gap is 14 hours (both off DST): 9:00am New York equals 11:00pm Sydney. 6:00pm New York equals 8:00am Sydney (next day). When the gap is 16 hours: 9:00am New York equals 1:00am Sydney (next day). 6:00am New York equals 10:00pm Sydney.

Best US–Australia Meeting Window

Because Sydney is so far ahead, the most practical overlap is US East Coast morning (7am–9am ET) equals Sydney evening (9pm–11pm AEST), or US West Coast early morning (5am–7am PT) equals Sydney afternoon (10am–12pm AEST). Early US morning tends to be more sustainable for regular cross-Pacific calls.

Wenya handles US–Australia timezone scheduling automatically inside your chat conversations. Try it at wenyawanna.ai