AEST to EST Converter (Sydney Time to Eastern Time)
New York is 14 to 16 hours behind Sydney depending on the season, because Australia and the US change their clocks in opposite halves of the year.
Mid-January 2026: EST is 16 hours behind AEDT. Mid-July 2026: EDT is 14 hours behind AEST.
Sydney, Melbourne, Canberra and Hobart are on Australian Eastern Standard Time (UTC+10:00) in winter and Australian Eastern Daylight Time (UTC+11:00) from the first Sunday of October to the first Sunday of April. New York is on EST or EDT, UTC−05:00 and UTC−04:00. Since the southern hemisphere's summer is the northern hemisphere's winter, the gap swings between 14 and 16 hours.
In 2026 it is 16 hours until March 7, 15 hours from March 8 to April 4, 14 hours from April 5 to October 3, 15 hours again from October 4 to 31, and 16 hours from November 1. The converter looks up the right offsets for the date you enter.
How to use this tool
- Pick a date and time in AEST. The date matters when daylight saving time is in force.
- Read the matching time in EST, with both UTC offsets.
- Use "Use current time" for now, or the tables below for a quick look.
Formula
EST time = AEST time − (AEST UTC offset) + (EST UTC offset)
The converter looks up both UTC offsets for the actual instant in the saved IANA time zone rules, so daylight saving changes are included automatically.
Example
Worked with the saved rules:
9:00 AM AEDT on March 2, 2026 = 5:00 PM EST (previous day)
6:30 PM AEST on August 3, 2026 = 4:30 AM EDT
Time difference through the year
The difference depends on the date when either place moves its clocks. These are the offsets on two reference days, from the saved IANA rules:
| Date | Offsets | Difference |
|---|---|---|
| Mid-January 2026 | AEDT UTC+11:00 · EST UTC−05:00 | EST is 16 hours behind AEDT. |
| Mid-July 2026 | AEST UTC+10:00 · EDT UTC−04:00 | EDT is 14 hours behind AEST. |
Clock changes in 2026
Between these dates the difference shifts by the size of the change.
| Zone | Date (local) | UTC offset |
|---|---|---|
| Eastern Time | March 8, 2026 | UTC−05:00 → UTC−04:00 |
| Australian Eastern Time | April 5, 2026 | UTC+11:00 → UTC+10:00 |
| Australian Eastern Time | October 4, 2026 | UTC+10:00 → UTC+11:00 |
| Eastern Time | November 1, 2026 | UTC−04:00 → UTC−05:00 |
AEST to EST time table
Each hour in Australian Eastern Time with the matching Eastern Time time in winter and summer (reference days in January and July).
| Australian Eastern Time | Eastern Time (January) | Eastern Time (July) |
|---|---|---|
| 12:00 AM AEDT / AEST | 8:00 AM EST (previous day) | 10:00 AM EDT (previous day) |
| 1:00 AM AEDT / AEST | 9:00 AM EST (previous day) | 11:00 AM EDT (previous day) |
| 2:00 AM AEDT / AEST | 10:00 AM EST (previous day) | 12:00 PM EDT (previous day) |
| 3:00 AM AEDT / AEST | 11:00 AM EST (previous day) | 1:00 PM EDT (previous day) |
| 4:00 AM AEDT / AEST | 12:00 PM EST (previous day) | 2:00 PM EDT (previous day) |
| 5:00 AM AEDT / AEST | 1:00 PM EST (previous day) | 3:00 PM EDT (previous day) |
| 6:00 AM AEDT / AEST | 2:00 PM EST (previous day) | 4:00 PM EDT (previous day) |
| 7:00 AM AEDT / AEST | 3:00 PM EST (previous day) | 5:00 PM EDT (previous day) |
| 8:00 AM AEDT / AEST | 4:00 PM EST (previous day) | 6:00 PM EDT (previous day) |
| 9:00 AM AEDT / AEST | 5:00 PM EST (previous day) | 7:00 PM EDT (previous day) |
| 10:00 AM AEDT / AEST | 6:00 PM EST (previous day) | 8:00 PM EDT (previous day) |
| 11:00 AM AEDT / AEST | 7:00 PM EST (previous day) | 9:00 PM EDT (previous day) |
| 12:00 PM AEDT / AEST | 8:00 PM EST (previous day) | 10:00 PM EDT (previous day) |
| 1:00 PM AEDT / AEST | 9:00 PM EST (previous day) | 11:00 PM EDT (previous day) |
| 2:00 PM AEDT / AEST | 10:00 PM EST (previous day) | 12:00 AM EDT |
| 3:00 PM AEDT / AEST | 11:00 PM EST (previous day) | 1:00 AM EDT |
| 4:00 PM AEDT / AEST | 12:00 AM EST | 2:00 AM EDT |
| 5:00 PM AEDT / AEST | 1:00 AM EST | 3:00 AM EDT |
| 6:00 PM AEDT / AEST | 2:00 AM EST | 4:00 AM EDT |
| 7:00 PM AEDT / AEST | 3:00 AM EST | 5:00 AM EDT |
| 8:00 PM AEDT / AEST | 4:00 AM EST | 6:00 AM EDT |
| 9:00 PM AEDT / AEST | 5:00 AM EST | 7:00 AM EDT |
| 10:00 PM AEDT / AEST | 6:00 AM EST | 8:00 AM EDT |
| 11:00 PM AEDT / AEST | 7:00 AM EST | 9:00 AM EDT |
EST to AEST time table
Each hour in Eastern Time with the matching Australian Eastern Time time in winter and summer (reference days in January and July).
| Eastern Time | Australian Eastern Time (January) | Australian Eastern Time (July) |
|---|---|---|
| 12:00 AM EST / EDT | 4:00 PM AEDT | 2:00 PM AEST |
| 2:00 AM EST / EDT | 6:00 PM AEDT | 4:00 PM AEST |
| 4:00 AM EST / EDT | 8:00 PM AEDT | 6:00 PM AEST |
| 6:00 AM EST / EDT | 10:00 PM AEDT | 8:00 PM AEST |
| 8:00 AM EST / EDT | 12:00 AM AEDT (next day) | 10:00 PM AEST |
| 10:00 AM EST / EDT | 2:00 AM AEDT (next day) | 12:00 AM AEST (next day) |
| 12:00 PM EST / EDT | 4:00 AM AEDT (next day) | 2:00 AM AEST (next day) |
| 2:00 PM EST / EDT | 6:00 AM AEDT (next day) | 4:00 AM AEST (next day) |
| 4:00 PM EST / EDT | 8:00 AM AEDT (next day) | 6:00 AM AEST (next day) |
| 6:00 PM EST / EDT | 10:00 AM AEDT (next day) | 8:00 AM AEST (next day) |
| 8:00 PM EST / EDT | 12:00 PM AEDT (next day) | 10:00 AM AEST (next day) |
| 10:00 PM EST / EDT | 2:00 PM AEDT (next day) | 12:00 PM AEST (next day) |
Hours that work in both places
Hours (on the January reference day) that fall between 8:00 AM and 8:00 PM in both AEST and EST:
Check the summer column above when one of the places is on daylight saving time.
| Australian Eastern Time | Eastern Time |
|---|---|
| 8:00 AM AEDT | 4:00 PM EST |
| 9:00 AM AEDT | 5:00 PM EST |
| 10:00 AM AEDT | 6:00 PM EST |
| 11:00 AM AEDT | 7:00 PM EST |
The Queensland exception and other Australian clocks
Not all of Australia moves its clocks. Queensland stays on AEST all year, so Brisbane and the Gold Coast are an hour behind Sydney from October to April. Western Australia and the Northern Territory sit on separate zones, so check the actual city before you convert.
The label AEST is used on this page for the whole Sydney-and-Melbourne zone, including the months when the local abbreviation is AEDT.
Trading, travel and the date line
The Australian Securities Exchange opens its main session at 10:00 a.m. Sydney time. In the middle of the northern summer, that is 8:00 p.m. on the previous evening in New York, so the Australian market opens while American traders are at dinner.
Flights between Sydney and the East Coast often connect through Los Angeles, Dallas, Doha or Dubai, and a trip that departs Sydney in the morning can reach New York on the same date. Because the zones are almost on opposite sides of the world, a call is easiest at the start of the Sydney day or the end of the New York evening.
Frequently asked questions
What time is 9 a.m. in New York in Sydney?
It is 11:00 p.m. in Sydney in the northern summer (a 14-hour gap, April to October) and 1:00 a.m. the next day in January, when the gap is 16 hours.
Why does the difference with Sydney vary so much?
Both countries use daylight saving time, but in opposite halves of the year, and the start and end dates also differ. That produces gaps of 14, 15 and 16 hours.
Does the whole of Australia use daylight saving time?
No. New South Wales, Victoria, Tasmania, the ACT and South Australia do. Queensland, Western Australia and the Northern Territory do not.
Does the time difference between AEST and EST change during the year?
Yes. The difference changes when one of the places moves its clocks for daylight saving time; the clock-change table above lists the dates.
Sources
Last updated:
Page address with these inputs: https://kakao.mobile/tools/aest-to-est-converter/
Cite or embed this tool
kakaoCalc. (2026, November 8). AEST to EST Converter (Sydney Time to Eastern Time). https://kakao.mobile/tools/aest-to-est-converter/
“AEST to EST Converter (Sydney Time to Eastern Time).” kakaoCalc, 8 Nov. 2026, kakao.mobile/tools/aest-to-est-converter/.