CHAST to UTC Time Converter

Convert Chatham Standard Time (CHAST) to Coordinated Universal Time (UTC). Both time zones are shown live below; current offset between them is 12h 45m behind.

Chatham Islands · Chatham Standard Time
17:57:04
Wednesday, May 13, 2026
GMT+12:45 · UTC+12:45
UTC · Coordinated Universal Time
05:12:04
Wednesday, May 13, 2026
UTC · UTC+00:00

Convert a specific time

From: CHAST (Chatham Islands)
To: UTC (UTC)
--:--

Daylight Saving status right now

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
UTC (Coordinated Universal Time)
Observes DST
No

Heads up: CHAST observes DST while UTC does not. The 12.75-hour difference shown above will shift by one hour when CHAST starts or ends DST.

When can CHAST and UTC meet?

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01
02
03
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09
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CHAST
UTC
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Chatham Islands (CHAST). Each row shows the local working-hours state in that zone for the same moment in time.
No business-hours overlap exists between CHAST and UTC.
The two zones are too far apart for synchronous meetings during normal working hours. Plan async or schedule outside 9-5 on at least one side.

Hour-by-hour CHAST to UTC conversion table

CHAST time (Chatham Islands)UTC time (UTC)Status
00:00 Wed11:15 TueUTC working
01:00 Wed12:15 TueUTC working
02:00 Wed13:15 TueUTC working
03:00 Wed14:15 TueUTC working
04:00 Wed15:15 TueUTC working
05:00 Wed16:15 TueUTC working
06:00 Wed17:15 TueOff-hours both sides
07:00 Wed18:15 TueOff-hours both sides
08:00 Wed19:15 TueOff-hours both sides
09:00 Wed20:15 TueCHAST working
10:00 Wed21:15 TueCHAST working
11:00 Wed22:15 TueCHAST working
12:00 Wed23:15 TueCHAST working
13:00 Wed00:15 WedCHAST working
14:00 Wed01:15 WedCHAST working
15:00 Wed02:15 WedCHAST working
16:00 Wed03:15 WedCHAST working
17:00 Wed04:15 WedOff-hours both sides
18:00 Wed05:15 WedOff-hours both sides
19:00 Wed06:15 WedOff-hours both sides
20:00 Wed07:15 WedOff-hours both sides
21:00 Wed08:15 WedOff-hours both sides
22:00 Wed09:15 WedUTC working
23:00 Wed10:15 WedUTC 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

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
Coordinated Universal Time (UTC)
IANA identifier
UTC
Current UTC offset
UTC+00:00
Current abbreviation
UTC
Major cities in this zone
UTC

Related converters

UTC to CHAST (reverse)CHAST to ESTCHAST to PSTCHAST to GMTCHAST to CETCHAST to ISTEST to UTCPST to UTCGMT to UTCCET to UTCIST to UTC
Looking for local time? See time in Chatham Islands or time in UTC.

Frequently asked questions

What is the time difference between CHAST and UTC right now?+
UTC (Coordinated Universal Time) is currently 12h 45m behind CHAST (Chatham Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does CHAST or UTC observe daylight saving time?+
CHAST: observes daylight saving time. UTC: does not observe daylight saving time.
When is the best time to schedule a meeting between CHAST and UTC?+
CHAST and UTC have no business-hour overlap, even at the edges of a typical workday. Async collaboration or non-9-5 scheduling is the practical choice.
What time is it in UTC when it is 12:00 noon in Chatham Islands?+
When it is 12:00 Wed in Chatham Islands (CHAST), it is 23:15 Tue in UTC (UTC).
Which IANA time zone identifiers are used for CHAST and UTC?+
CHAST maps to "Pacific/Chatham" in the IANA database. UTC maps to "UTC". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Chatham Islands ahead of or behind UTC?+
Whether Chatham Islands (CHAST) is ahead of or behind UTC (UTC) depends on the current UTC offsets. Right now UTC is 12h 45m behind CHAST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for CHAST and UTC?+
CHAST is UTC+12:45 (GMT+12:45) and UTC is UTC+00:00 (UTC). 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 CHAST and UTC?+
No standard business-hours overlap exists between CHAST and UTC. Plan asynchronous work or schedule outside 9-5 on at least one side.