What is the time difference between Adelaide and New York?

New York is 13 hours 30 minutes behind Adelaide. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call New York from Adelaide?

There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.

Does Adelaide observe daylight saving time?

Yes. Adelaide runs on UTC+9:30 in winter and UTC+10:30 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.

Does New York observe daylight saving time?

Yes. New York runs on UTC-5 in winter and UTC-4 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.

If it is midday in Adelaide, what time is it in New York?

It is 22:30 in New York, still on the previous day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Adelaide and New York use?

Adelaide uses Australia/Adelaide, currently UTC+9:30 (ACST), and New York uses America/New_York, currently UTC-4 (EDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Adelaide time to New York time

Right now New York runs 13 hours 30 minutes behind Adelaide. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

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Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Adelaide, across for New York.

Adelaide	New York
00:00	10:30previous day
01:00	11:30previous day
02:00	12:30previous day
03:00	13:30previous day
04:00	14:30previous day
05:00	15:30previous day
06:00	16:30previous day
07:00	17:30previous day
08:00	18:30previous day
09:00	19:30previous day
10:00	20:30previous day
11:00	21:30previous day
12:00	22:30previous day
13:00	23:30previous day
14:00	00:30
15:00	01:30
16:00	02:30
17:00	03:30
18:00	04:30
19:00	05:30
20:00	06:30
21:00	07:30
22:00	08:30
23:00	09:30

Daylight saving time

Both cities change their clocks, but not necessarily on the same date — which is why the difference between them shifts for a few weeks each year.

Adelaide

Observes daylight saving time

Standard: UTC+9:30
Daylight: UTC+10:30
Next change: 2026-10-04 +60m

New York

Observes daylight saving time

Standard: UTC-5
Daylight: UTC-4
Next change: 2026-11-01 −60m

When you can actually talk

A standard working day in Adelaide and one in New York do not overlap at all. Any call between them is early for one side or late for the other.

Adelaide 09:30–18:00New York 20:00–04:30
Adelaide 22:30–07:30New York 09:00–18:00

Reference

The zone identifiers and offsets behind everything above.

	Adelaide	New York
IANA zone	Australia/Adelaide	America/New_York
Abbreviation	ACST	EDT
Standard offset	UTC+9:30	UTC-5
Daylight offset	UTC+10:30	UTC-4
Clock changes this year	2	2
Country	Australia	United States

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Adelaide and New York?: New York is 13 hours 30 minutes behind Adelaide. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call New York from Adelaide?: There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.
Does Adelaide observe daylight saving time?: Yes. Adelaide runs on UTC+9:30 in winter and UTC+10:30 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.
Does New York observe daylight saving time?: Yes. New York runs on UTC-5 in winter and UTC-4 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.
If it is midday in Adelaide, what time is it in New York?: It is 22:30 in New York, still on the previous day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Adelaide and New York use?: Adelaide uses Australia/Adelaide, currently UTC+9:30 (ACST), and New York uses America/New_York, currently UTC-4 (EDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.