New York to Sydney Time Converter
Sydney is usually 14 to 16 hours ahead of New York, depending on whether the US or Australia is on daylight saving time.
Daylight saving note: Varies 14–16h because New York and Sydney observe daylight saving in opposite seasons. The live clocks above show the exact current gap.
ET to AEST/AEDT Conversion Table
Full 24-hour reference table. Use the live clocks above for the exact current offset.
| 🇺🇸 ET | 🇦🇺 EST → AEDTUTC-5 to UTC+11 | 🇦🇺 EDT → AESTUTC-4 to UTC+10 | 🇦🇺 EDT → AEDTUTC-4 to UTC+11 transition weeks | Note |
|---|---|---|---|---|
| 00:00 | 4:00 PM | 2:00 PM | 3:00 PM | |
| 01:00 | 5:00 PM | 3:00 PM | 4:00 PM | |
| 02:00 | 6:00 PM | 4:00 PM | 5:00 PM | |
| 03:00 | 7:00 PM | 5:00 PM | 6:00 PM | |
| 04:00 | 8:00 PM | 6:00 PM | 7:00 PM | |
| 05:00 | 9:00 PM | 7:00 PM | 8:00 PM | |
| 06:00 | 10:00 PM | 8:00 PM | 9:00 PM | |
| 07:00 | 11:00 PM | 9:00 PM | 10:00 PM | |
| 08:00 | 12:00 AM | 10:00 PM | 11:00 PM | next day |
| 09:00 | 1:00 AM | 11:00 PM | 12:00 AM | next day |
| 10:00 | 2:00 AM | 12:00 AM | 1:00 AM | next day |
| 11:00 | 3:00 AM | 1:00 AM | 2:00 AM | next day |
| 12:00 | 4:00 AM | 2:00 AM | 3:00 AM | next day |
| 13:00 | 5:00 AM | 3:00 AM | 4:00 AM | next day |
| 14:00 | 6:00 AM | 4:00 AM | 5:00 AM | next day |
| 15:00 | 7:00 AM | 5:00 AM | 6:00 AM | next day |
| 16:00 | 8:00 AM | 6:00 AM | 7:00 AM | next day |
| 17:00 | 9:00 AM | 7:00 AM | 8:00 AM | next day |
| 18:00 | 10:00 AM | 8:00 AM | 9:00 AM | next day |
| 19:00 | 11:00 AM | 9:00 AM | 10:00 AM | next day |
| 20:00 | 12:00 PM | 10:00 AM | 11:00 AM | next day |
| 21:00 | 1:00 PM | 11:00 AM | 12:00 PM | next day |
| 22:00 | 2:00 PM | 12:00 PM | 1:00 PM | next day |
| 23:00 | 3:00 PM | 1:00 PM | 2:00 PM | next day |
* "next day" = converted time falls on the following calendar day.
Best Hours to Schedule New York–Sydney Calls
New York and Sydney have almost no working hours overlap. Sydney's business day (9 AM–5 PM) is 5:00 PM–1:00 AM in New York from roughly November to March (EST vs AEDT) and 7:00 PM–3:00 AM from roughly April to September (EDT vs AEST), so a live call only fits at the edges — early morning in Sydney (late afternoon the previous day in New York) or evening in New York — with async communication covering the rest of the day.
About New York (ET)
New York (Eastern Time, UTC-5/UTC-4) observes US daylight saving from March to November. Sydney observes Australian daylight saving from October to April — the opposite season. This creates four different offset values throughout the year, making the exact New York–Sydney gap date-dependent.
About Sydney (AEST/AEDT)
Sydney (AEST, UTC+10; AEDT UTC+11 in summer) sits at the far eastern edge of the Asia-Pacific timezone map. During New York winter and Sydney summer, New York's 9:30 AM market open is 1:30 AM Sydney next day — deep overnight.
How to Avoid New York–Sydney Conversion Mistakes
Sydney is already on the next calendar day from these ET times onward: 8:00 AM for EST → AEDT, 10:00 AM for EDT → AEST, 9:00 AM for EDT → AEDT. For example, 11:00 PM ET is 3:00 PM in Sydney on the next day (EST → AEDT).
Abbreviations can be ambiguous here: New York switches between ET and EDT across the year, while Sydney switches between AEST and AEDT. City names and IANA time zones (America/New_York and Australia/Sydney) are safer for exact scheduling if you're automating anything, since they resolve the right abbreviation automatically instead of needing a manual seasonal check.
Frequently Asked Questions
How many hours ahead is Sydney from New York?
Sydney is usually 14 to 16 hours ahead of New York. The common cases are 16h during New York winter/Sydney summer, 14h during New York summer/Sydney winter, and 15h during short transition periods.
What time is 9 AM New York in Sydney?
9:00 AM New York is usually 1:00 AM next day in Sydney during EST/AEDT, or 11:00 PM same day during EDT/AEST. During transition weeks it can be midnight next day.
Is there any overlap between New York and Sydney working hours?
Almost none. Sydney business hours (9 AM–5 PM) map to 5 PM–1 AM in New York from roughly November to March (EST vs AEDT) and 7 PM–3 AM from roughly April to September (EDT vs AEST). A 7:00 AM Sydney call is 3:00 PM the previous day in New York in the northern winter, or 5:00 PM in the northern summer.
Does Australia observe daylight saving time?
Yes, but in opposite seasons. Sydney (NSW) observes AEDT (UTC+11) from October to April — Southern Hemisphere summer. The New York–Sydney gap is smallest when New York is on EDT and Sydney is on AEST: 14 hours.