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EST to AEST converter

Convert Eastern Time to Australian Eastern Time. Sydney is 14 to 16 hours ahead of New York, depending on the season.

From
New York
To
Sydney
Live
New YorkEST
9:00 AM
 
Working hours
SydneyAEST
1:00 AM
 
Working hours

Sydney is 16 hours ahead of New York (EST vs AEST).

Need a time that works for three or more people or cities? Plan a meeting →
Gap
16 hours
Sydney ahead of New York today
Working hours overlap
None
9-to-5 days in New York and Sydney do not overlap; use an early or late slot
Next gap change
Mar 14, 2027
The gap becomes 15 hours (New York clocks go forward)
9:00 AM EST
1:00 AM AEST
Sydney is 16 hours ahead of New York, as of Nov 6, 2026

Working with Australia from New York

New York and Sydney are nearly opposite on the globe, and because their seasons are reversed, they also change their clocks in opposite directions. The gap is 16 hours when New York is on EST and Sydney is on AEDT, 14 hours when New York is on EDT and Sydney is on AEST, and 15 hours in between.

The result is that an ordinary working day does not overlap at all. When New York starts at 9 AM, Sydney is at 1 AM or 11 PM the same day. The only workable slots are the New York evening and the Sydney morning.

Almost every call is a compromise.

Calls with a Sydney office

The compromise slot is a New York evening and a Sydney morning.

  • 6:00 PM EST is 10:00 AM the next day in Sydney
  • 7:00 PM EST is 11:00 AM the next day in Sydney
  • 5:00 PM EDT is 7:00 AM the next day in Sydney

A weekday evening call in New York is the Sydney morning of the next calendar day.

Sport

Australian sporting events are watched live in the US at awkward times.

  • The Australian Open final at 7:30 PM AEDT is 3:30 AM EST
  • The Melbourne Cup at 3:00 PM AEDT is 11:00 PM EST the evening before
  • A Sydney rugby game at 7:00 PM AEDT is 3:00 AM EST

Fans in New York often watch on replay.

Travel and shipping

Flights from New York to Sydney take about 22 hours with a connection and cross the date line.

  • Depart JFK on Monday 10:00 PM EST, arrive on Wednesday in Sydney
  • A parcel promised for Friday in Sydney arrives Thursday night in New York time
  • Customer support from 9 AM to 5 PM AEDT runs 5:00 PM to 1:00 AM EST

A calendar day is lost when flying west to east.

Deadlines in Sydney time

An Australian deadline of 5:00 PM AEDT is 1:00 AM EST the same day, which means a New York applicant must finish the evening before. A deadline of midnight AEDT is 8:00 AM EST the previous day.

For Australians, a New York deadline of 5:00 PM EST is 9:00 AM AEDT the next day. A document delivered by the end of the New York day will be waiting for them when they start work.

Why the gap swings between 14 and 16 hours

New York uses daylight saving from March to November. Sydney uses it from October to April. The two periods overlap for part of the year (October to November and March to April), and during the overlap the gap is 15 hours. When only New York is on summer time the gap is 14 hours, and when only Sydney is, it is 16 hours.

Dates for 2026–27. Calculated from the IANA time zone database on Nov 6, 2026: today Sydney is 16 hours ahead of New York. In northern winter the gap is 16 hours, in northern summer 14 hours. The clock changes ahead are:
  • Mar 14, 2027: New York moves to EDT (UTC−4); the gap becomes 15 hours
  • Apr 4, 2027: Sydney moves to AEST (UTC+10); the gap becomes 14 hours
  • Oct 3, 2027: Sydney moves to AEDT (UTC+11); the gap becomes 15 hours
  • Nov 7, 2027: New York moves to EST (UTC−5); the gap becomes 16 hours

Queensland does not use daylight saving, so Brisbane is one hour behind Sydney from October to April. If your Australian contact is in Brisbane, Perth or Adelaide, check the city: they are at different offsets from Sydney.

New York to Sydney, every hour

Times are for Nov 6, 2026, when Sydney is 16 hours ahead of New York. The gap changes on the dates listed above. Green rows are the hours when both places are inside a 9-to-5 day.

New York (EST)SydneyAEST, +16 hrs
12:00 AM (midnight)4:00 PM
1:00 AM5:00 PM
2:00 AM6:00 PM
3:00 AM7:00 PM
4:00 AM8:00 PM
5:00 AM9:00 PM
6:00 AM10:00 PM
7:00 AM11:00 PM
8:00 AM12:00 AM next day
9:00 AM1:00 AM next day
10:00 AM2:00 AM next day
11:00 AM3:00 AM next day
12:00 PM (noon)4:00 AM next day
1:00 PM5:00 AM next day
2:00 PM6:00 AM next day
3:00 PM7:00 AM next day
4:00 PM8:00 AM next day
5:00 PM9:00 AM next day
6:00 PM10:00 AM next day
7:00 PM11:00 AM next day
8:00 PM12:00 PM next day
9:00 PM1:00 PM next day
10:00 PM2:00 PM next day
11:00 PM3:00 PM next day

“next day” and “previous day” mean Sydney is on a different calendar date from New York.

Quick answers

What time is 9 AM EST in Sydney?

1:00 AM the next day when Sydney is on AEDT (Oct to Apr), and 11:00 PM the same day when Sydney is on AEST.

How many hours ahead is Sydney of New York?

Between 14 and 16 hours depending on the dates. The current figure is shown above.

What is the best time to call Sydney from New York?

Between 5 PM and 7 PM New York time, which is roughly 7 AM to 11 AM the next day in Sydney.

Is AEST the same in Melbourne and Sydney?

Yes. Both use AEST in winter and AEDT in summer.

Does Queensland have the same time?

Queensland uses AEST all year, so in summer it is one hour behind Sydney.