EST to CHAST Time Converter

Convert Eastern Standard Time (EST) to Chatham Standard Time (CHAST). Both time zones are shown live below; current offset between them is 16h 45m ahead.

New York · Eastern Standard Time
12:53:32
Tuesday, May 12, 2026
EDT · UTC-04:00
Chatham Islands · Chatham Standard Time
05:38:32
Wednesday, May 13, 2026
GMT+12:45 · UTC+12:45

Convert a specific time

From: EST (New York)
To: CHAST (Chatham Islands)
--:--

Daylight Saving status right now

EST (Eastern Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-11-01
Offset shift
UTC-04:00 → UTC-05:00
CHAST (Chatham Standard Time)
Observes DST
Yes
In DST right now
No
Next spring forward
2026-09-27
Offset shift
UTC+12:45 → UTC+13:45

When can EST and CHAST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
EST
CHAST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in New York (EST). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 16:00–18:00 EST (08:45–10:45 CHAST).

Hour-by-hour EST to CHAST conversion table

EST time (New York)CHAST time (Chatham Islands)Status
00:00 Tue16:45 TueCHAST working
01:00 Tue17:45 TueOff-hours both sides
02:00 Tue18:45 TueOff-hours both sides
03:00 Tue19:45 TueOff-hours both sides
04:00 Tue20:45 TueOff-hours both sides
05:00 Tue21:45 TueOff-hours both sides
06:00 Tue22:45 TueOff-hours both sides
07:00 Tue23:45 TueOff-hours both sides
08:00 Tue00:45 WedOff-hours both sides
09:00 Tue01:45 WedEST working
10:00 Tue02:45 WedEST working
11:00 Tue03:45 WedEST working
12:00 Tue04:45 WedEST working
13:00 Tue05:45 WedEST working
14:00 Tue06:45 WedEST working
15:00 Tue07:45 WedEST working
16:00 Tue08:45 WedEST working
17:00 Tue09:45 WedCHAST working
18:00 Tue10:45 WedCHAST working
19:00 Tue11:45 WedCHAST working
20:00 Tue12:45 WedCHAST working
21:00 Tue13:45 WedCHAST working
22:00 Tue14:45 WedCHAST working
23:00 Tue15:45 WedCHAST working

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Eastern Standard Time (EST)
IANA identifier
America/New_York
Current UTC offset
UTC-04:00
Current abbreviation
EDT
Major cities in this zone
New YorkMiamiAtlantaBostonPhiladelphia
Chatham Standard Time (CHAST)
IANA identifier
Pacific/Chatham
Current UTC offset
UTC+12:45
Current abbreviation
GMT+12:45
Major cities in this zone
Chatham Islands

Sun today in New York and Chatham Islands

New York
Sunrise
05:43
Sunset
20:04
Solar noon
12:53
Daylight
14h 20m

Related converters

CHAST to EST (reverse)EST to PSTEST to GMTEST to UTCEST to CETEST to ISTPST to CHASTGMT to CHASTUTC to CHASTCET to CHASTIST to CHAST
Looking for local time? See time in New York or time in Chatham Islands.

Frequently asked questions

What is the time difference between EST and CHAST right now?+
CHAST (Chatham Standard Time) is currently 16h 45m ahead EST (Eastern Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does EST or CHAST observe daylight saving time?+
EST: observes daylight saving time. CHAST: observes daylight saving time.
When is the best time to schedule a meeting between EST and CHAST?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 16:00–18:00 EST (08:45–10:45 CHAST).
What time is it in Chatham Islands when it is 12:00 noon in New York?+
When it is 12:00 Tue in New York (EST), it is 04:45 Wed in Chatham Islands (CHAST).
Which IANA time zone identifiers are used for EST and CHAST?+
EST maps to "America/New_York" in the IANA database. CHAST maps to "Pacific/Chatham". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is New York ahead of or behind Chatham Islands?+
Whether New York (EST) is ahead of or behind Chatham Islands (CHAST) depends on the current UTC offsets. Right now CHAST is 16h 45m ahead EST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for EST and CHAST?+
EST is UTC-04:00 (EDT) and CHAST is UTC+12:45 (GMT+12:45). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both EST and CHAST?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between EST and CHAST is 16:00–18:00 EST.