New York SydneyEST to AEST Time Converter
New York (EST, UTC−5) is currently 15 hours behind Sydney (AEST, UTC+10). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in New York, it's the next day in Sydney.
New York (EST) runs 15 hours behind Sydney (AEST). A 9-to-5 workday on one side lands in the other side's evening or night, so the two cities share almost no normal working hours — edge-of-day calls are the trick.
- Time difference
- +15h 00m
- EST
- UTC−5
- AEST
- UTC+10
- Best call window
- Outside 9–6
EST to AEST conversion table
The next 12 hours in EST and the matching local time in AEST. The current hour is highlighted; drag the converter's slider and the table follows.
| EST | AEST |
|---|---|
| NOW Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Best time to meet between EST & AEST
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
Daylight saving shifts this gap by up to 2 hours
The difference between EST and AEST swings between 14, 15 and 16 hours across the year as each side starts or ends daylight saving. Regions on EST switch to EDT (UTC−4) during daylight saving time. Regions on AEST switch to AEDT (UTC+11) during daylight saving time. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair — every combination is a live tool, not an article.
From EST
To AEST
One source of truth — for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am EST time in AEST?", it can cite the exact, DST-aware result — not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with IANA zones and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "EST → AEST",
"url": "https://worldclock.pro/en/convert/est-to-aest",
"from": {
"name": "EST",
"type": "timezone",
"abbreviation": "EST",
"daylightAbbreviation": "EDT",
"iana": "America/New_York",
"standardUtcOffset": "-05:00",
"daylightUtcOffset": "-04:00",
"referenceCity": "New York"
},
"to": {
"name": "AEST",
"type": "timezone",
"abbreviation": "AEST",
"daylightAbbreviation": "AEDT",
"iana": "Australia/Sydney",
"standardUtcOffset": "+10:00",
"daylightUtcOffset": "+11:00",
"referenceCity": "Sydney"
},
"currentDifferenceMinutes": 900,
"possibleDifferencesMinutes": [
840,
900,
960
],
"note": "Between the regions that use these zones the difference is 14, 15 and 16 hours across the year, depending on daylight saving on each side. The clocks on this page show the named zones themselves, which are fixed."
}
Frequently asked questions
What is the time difference between EST and AEST?
EST is currently 15 hours behind AEST. EST is on EST (UTC−5) and AEST is on AEST (UTC+10). The difference can change when either side starts or ends daylight saving time.
Is AEST ahead of or behind EST?
AEST is currently 15 hours ahead of EST.
When it is 9:00 AM in EST, what time is it in AEST?
When it is 9:00 AM on a Monday in EST, it is 12:00 AM the next day in AEST.
Do EST and AEST observe daylight saving time?
Regions on EST switch to EDT (UTC−4) during daylight saving time. Regions on AEST switch to AEDT (UTC+11) during daylight saving time.
How do I convert EST time to AEST time?
Add 15 hours to any time in EST to get the time in AEST. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
More world clock & time zone apps
From the team behind worldclock.pro — global scheduling on iPhone & iPad, a Mac menu-bar clock, and precision Zulu/UTC for aviation, military, and HAM radio.
World Clock Master
Global time zone scheduling for international teams, travelers, and professionals who coordinate across cities and continents.
View app
World Clock Pro
The same powerful time zone converter, meeting scheduler, and world clock — living in your Mac's menu bar.
View app