What time is it in Sydney when it's 9 AM in New York?

12:00 AM (next day) — as of 6 October 2026. Sydney is 15 hours ahead of New York.

Does the time difference between New York and Sydney change?

Yes. In 2026 it's 16 hours or 15 hours or 14 hours, depending on the date, because the two cities change their clocks on different dates.

What's the best time for a call between New York and Sydney?

There's no hour when both cities are in working hours (09:00–17:00). The fairest is around 16:00 in New York (07:00 in Sydney).

What time zones are New York and Sydney in?

New York uses America/New_York (UTC−4 today); Sydney uses Australia/Sydney (UTC+11 today).

Time difference between New York and Sydney

Sydney is 15 hours ahead of New York. When it's 9:00 in New York, it's 00:00 (next day) in Sydney.

From

Sydney is 15 hours ahead of New York.

On Tuesday, 6 October 2026, 09:00 in New York is 00:00 (next day) in Sydney. New York is UTC−4; Sydney is UTC+11.

The gap through 2026

1 Jan – 8 MarSydney is 16 hours ahead of New York.
8 Mar – 4 AprSydney is 15 hours ahead of New York.
4 Apr – 3 OctSydney is 14 hours ahead of New York.
3 Oct – 1 NovSydney is 15 hours ahead of New York.
1 Nov – 31 DecSydney is 16 hours ahead of New York.

New York moves its clocks forward on 8 March (UTC−5 → UTC−4).
Sydney moves its clocks back on 4 April (UTC+11 → UTC+10).
Sydney moves its clocks forward on 3 October (UTC+10 → UTC+11).
New York moves its clocks back on 1 November (UTC−4 → UTC−5).

New York to Sydney, hour by hour

On Tuesday 6 October.

New York	Sydney
07:00 Early morning	22:00 Sleeping hours
08:00 Early morning	23:00 Sleeping hours
09:00 Working hours	00:00+1 Sleeping hours
10:00 Working hours	01:00+1 Sleeping hours
11:00 Working hours	02:00+1 Sleeping hours
12:00 Working hours	03:00+1 Sleeping hours
13:00 Working hours	04:00+1 Sleeping hours
14:00 Working hours	05:00+1 Sleeping hours
15:00 Working hours	06:00+1 Sleeping hours
16:00 Working hours	07:00+1 Early morning
17:00 Evening	08:00+1 Early morning
18:00 Evening	09:00+1 Working hours
19:00 Evening	10:00+1 Working hours
20:00 Evening	11:00+1 Working hours
21:00 Evening	12:00+1 Working hours
22:00 Sleeping hours	13:00+1 Working hours

Daylight saving in 2026

New York moves its clocks forward on Sunday 8 March (UTC−5 → UTC−4).
Sydney moves its clocks back on Saturday 4 April (UTC+11 → UTC+10).
Sydney moves its clocks forward on Saturday 3 October (UTC+10 → UTC+11).
New York moves its clocks back on Sunday 1 November (UTC−4 → UTC−5).

1 Jan – 8 MarSydney is 16 hours ahead of New York.
8 Mar – 4 AprSydney is 15 hours ahead of New York.
4 Apr – 3 OctSydney is 14 hours ahead of New York.
3 Oct – 1 NovSydney is 15 hours ahead of New York.
1 Nov – 31 DecSydney is 16 hours ahead of New York.

Best times for a call

Working hours (09:00–17:00) in New York and Sydney don't overlap, so any call is early or late for someone.

New York 16:00Working hoursSydney 07:00 +1Early morning
New York 18:00EveningSydney 09:00 +1Working hours
New York 19:00EveningSydney 10:00 +1Working hours

How the time difference calculator works

The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.

Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.

Examples

London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.

Good for

Knowing when a colleague's day starts
Setting expectations for replies across time zones
Planning travel and jet lag

Frequently asked questions

What time is it in Sydney when it's 9 AM in New York?: 12:00 AM (next day) — as of 6 October 2026. Sydney is 15 hours ahead of New York.
Does the time difference between New York and Sydney change?: Yes. In 2026 it's 16 hours or 15 hours or 14 hours, depending on the date, because the two cities change their clocks on different dates.
What's the best time for a call between New York and Sydney?: There's no hour when both cities are in working hours (09:00–17:00). The fairest is around 16:00 in New York (07:00 in Sydney).
What time zones are New York and Sydney in?: New York uses America/New_York (UTC−4 today); Sydney uses Australia/Sydney (UTC+11 today).

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