What is the time difference between New York and Chatham Islands?

Chatham Islands is 16 hours 45 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 Chatham Islands from New York?

Between 16:15–18:00 in New York, which is 09:00–10:45 in Chatham Islands. That is the only stretch where both cities are inside a 09:00–18:00 day.

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 Chatham Islands observe daylight saving time?

Yes. Chatham Islands runs on UTC+12:45 in winter and UTC+13:45 in summer. The next change is on 2026-09-27, when clocks go forward by 60 minutes.

If it is midday in New York, what time is it in Chatham Islands?

It is 04:45 in Chatham Islands, 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 Chatham Islands use?

New York uses America/New_York, currently UTC-4 (EDT), and Chatham Islands uses Pacific/Chatham, currently UTC+12:45 (CHAST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert New York time to Chatham Islands time

Right now Chatham Islands runs 16 hours 45 minutes ahead of New York. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

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Date

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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 Chatham Islands.

New York	Chatham Islands
00:00	16:45
01:00	17:45
02:00	18:45
03:00	19:45
04:00	20:45
05:00	21:45
06:00	22:45
07:00	23:45
08:00	00:45next day
09:00	01:45next day
10:00	02:45next day
11:00	03:45next day
12:00	04:45next day
13:00	05:45next day
14:00	06:45next day
15:00	07:45next day
16:00	08:45next day
17:00	09:45next day
18:00	10:45next day
19:00	11:45next day
20:00	12:45next day
21:00	13:45next day
22:00	14:45next day
23:00	15:45next day

Daylight saving time

New York and Chatham Islands 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

Chatham Islands

Observes daylight saving time

Standard: UTC+12:45
Daylight: UTC+13:45
Next change: 2026-09-27 +60m

When you can actually talk

You have 1 hour 45 minutes of shared working time: 16:15–18:00 in New York, which is 09:00–10:45 in Chatham Islands.

New York 16:15–18:00Chatham Islands 09:00–10:45

Reference

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

	New York	Chatham Islands
IANA zone	America/New_York	Pacific/Chatham
Abbreviation	EDT	CHAST
Standard offset	UTC-5	UTC+12:45
Daylight offset	UTC-4	UTC+13:45
Clock changes this year	2	2
Country	United States	New Zealand

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

Common questions

What is the time difference between New York and Chatham Islands?: Chatham Islands is 16 hours 45 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 Chatham Islands from New York?: Between 16:15–18:00 in New York, which is 09:00–10:45 in Chatham Islands. That is the only stretch where both cities are inside a 09:00–18:00 day.
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 Chatham Islands observe daylight saving time?: Yes. Chatham Islands runs on UTC+12:45 in winter and UTC+13:45 in summer. The next change is on 2026-09-27, when clocks go forward by 60 minutes.
If it is midday in New York, what time is it in Chatham Islands?: It is 04:45 in Chatham Islands, 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 Chatham Islands use?: New York uses America/New_York, currently UTC-4 (EDT), and Chatham Islands uses Pacific/Chatham, currently UTC+12:45 (CHAST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.