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Convert ET to AEST

Eastern Time (ET) to Australian Eastern Time (AEST)

US-Australia teams deal with one of the trickiest timezone gaps in global business. The 14-16 hour difference means today in New York is already tomorrow in Sydney. Adding complexity, both countries observe DST but in opposite seasons, so the offset swings between 14 and 16 hours throughout the year.

When it's 12:00 PM ET, it's 3:00 AM AEST (next day)

UTC-4 UTC+11 +15 hours

Interactive Converter

Pick any time and date to convert between ET and AEST.

ET to AEST Conversion Table

Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.

ET AEST
12:00 AM 3:00 PM
1:00 AM 4:00 PM
2:00 AM 5:00 PM
3:00 AM 6:00 PM
4:00 AM 7:00 PM
5:00 AM 8:00 PM
6:00 AM 9:00 PM
7:00 AM 10:00 PM
8:00 AM 11:00 PM
9:00 AM 12:00 AM +1 day
10:00 AM 1:00 AM +1 day
11:00 AM 2:00 AM +1 day
12:00 PM 3:00 AM +1 day
1:00 PM 4:00 AM +1 day
2:00 PM 5:00 AM +1 day
3:00 PM 6:00 AM +1 day
4:00 PM 7:00 AM +1 day
5:00 PM 8:00 AM +1 day
6:00 PM 9:00 AM +1 day
7:00 PM 10:00 AM +1 day
8:00 PM 11:00 AM +1 day
9:00 PM 12:00 PM +1 day
10:00 PM 1:00 PM +1 day
11:00 PM 2:00 PM +1 day

Best Meeting Window

Top meeting times for teams in ET and AEST (9 AM -- 6 PM work hours, 1-hour meeting).

12a
3a
6a
9a
12p
3p
6p
9p
ET EDT
AEST GMT+11
Overlap
Everyone available
Most available
Some overlap
Outside work hours
1 1:00 PM -- 2:00 PM ET
ET: 1:00 PM AEST: 4:00 AM

1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for AEST.

5.9 / 10
2 2:00 PM -- 3:00 PM ET
ET: 2:00 PM AEST: 5:00 AM

1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for AEST.

5.9 / 10
3 9:00 PM -- 10:00 PM ET
ET: 9:00 PM AEST: 12:00 PM

1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for ET.

5.9 / 10

Try the Meeting Planner with custom work hours →

Scheduling Tips

  • The only reliable overlap is early morning US / late evening Australia. Try 7:00-8:00 AM EST / 11:00 PM-12:00 AM AEDT (Nov-Mar) or 7:00-8:00 AM EDT / 9:00-10:00 PM AEST (Apr-Oct) for brief syncs.
  • Alternatively, schedule at 5:00-6:00 PM EST / 9:00-10:00 AM AEDT (next day, Nov-Mar) or 5:00-6:00 PM EDT / 7:00-8:00 AM AEST (next day, Apr-Oct) to catch the Australian morning.
  • Rotate meeting times quarterly to share the inconvenience fairly between teams.
  • Mark DST transition weeks on your calendar -- the offset can shift by a full hour, which matters when your overlap window is already narrow.

Time Difference & DST

AEST is 15 hours ahead of ET. ET is at UTC-4 and AEST is at UTC+11.

Upcoming DST Transitions:

ET Clocks fall back on November 2, 2026
AEST Clocks fall back on April 6, 2026

The conversion table above reflects the current DST state at build time. Use the interactive converter for live, date-specific conversions.

Major Cities

Eastern Time (ET)

  • New York
  • Miami
  • Atlanta

Australian Eastern Time (AEST)

  • Sydney
  • Canberra
  • Wollongong

Frequently Asked Questions

What is the time difference between EST and AEST?
AEST (Australian Eastern Standard Time) is normally 15 hours ahead of EST. However, this ranges from 14 to 16 hours depending on which country is currently observing daylight saving time. When both are on standard time, the gap is 15 hours.
Why does the US-Australia time difference change so much?
The US and Australia observe DST in opposite seasons. The US springs forward in March (northern hemisphere spring), while Australia springs forward in October (southern hemisphere spring). This creates periods where one, both, or neither country is on DST, swinging the offset between 14 and 16 hours.
What time is 9 AM EST in Sydney?
During US standard time and Australian daylight time (November-March), 9:00 AM EST is 1:00 AM the next day in Sydney (AEDT, +16 hours). During US daylight time and Australian standard time (April-October), 9:00 AM EDT is 11:00 PM the same day in Sydney (AEST, +14 hours).

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