Home > Time Zones > Abbreviations > CHAST – Chatham Island Standard Time

CHAST – Chatham Island Standard Time (Standard Time)

Chatham Island Standard Time Note:

Pacific: CHAST is currently not observed because locations are on DST. Locations are currently observing CHADT instead.

Time zone map of CHAST
No locations currently on CHAST.
Observes CHAST part of the year.
Areas with same time currently (UTC +12:45).
No locations are currently on CHAST – Chatham Island Standard Time.
Observes CHAST – Chatham Island Standard Time part of the year, but not currently.
Currently has same time zone offset as CHAST (UTC +12:45) but different time zone name.

Chatham Island Standard Time (CHAST) is 12:45 hours ahead of Coordinated Universal Time (UTC). This time zone is a standard time zone and is used in: Pacific. Chatham Island Standard Time is a quarter-hour time zone. Its local time differs by either 15 or 45 minutes from the usual one-hour time zone interval.

See full time zone map

Summer Time & DST

Some places observe daylight saving time/summer time during the summer, and therefore use CHADT (Chatham Island Daylight Time) in the summer.

Email time zone indicator: +1245

An email sent from someone in the Chatham Island Standard Time (CHAST) time zone will have the time zone listed as "+1245" in the headers of the email. (However, "+1245" does not have to be in Chatham Island Standard Time, as other time zones could have the same UTC offset).

Where and when is CHAST observed?


Pacific islands/territories using CHAST in the winter and CHADT in the summer

  • Chatham Islands (New Zealand)

No locations currently on CHAST

  • CHAST will be observed in Chatham Islands starting from Apr 5, 2015 at 3:45 AM
  • UTC Offset: UTC +12:45

Find current time and time zone by city


Example cities

New Zealand – Chatham Islands (Winter)

Related time zones

CHADT – Chatham Island Daylight Time (Daylight Time)

Time Zone Map with DST

Time zone map

Time Zone Map