What is the time difference between New York and Adelaide?

Adelaide is 13 hours 30 minutes ahead of New York. 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 Adelaide from New York?

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 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.

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.

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

It is 01:30 in Adelaide, and already the following day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do New York and Adelaide use?

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

Convert New York time to Adelaide time

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

Convert a time

From

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 New York, across for Adelaide.

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

Daylight saving time

New York and Adelaide both observe daylight saving. Where their change dates differ, so does the gap between them for the weeks in between.

New York

Observes daylight saving time

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

Adelaide

Observes daylight saving time

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

When you can actually talk

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

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

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

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

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

Common questions

What is the time difference between New York and Adelaide?: Adelaide is 13 hours 30 minutes ahead of New York. 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 Adelaide from New York?: 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 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.
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.
If it is midday in New York, what time is it in Adelaide?: It is 01:30 in Adelaide, and already the following day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do New York and Adelaide use?: New York uses America/New_York, currently UTC-4 (EDT), and Adelaide uses Australia/Adelaide, currently UTC+9:30 (ACST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.