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

CHAST – Chatham Island Standard Time (Standard Time)

CHAST is currently not used at all

Pacific: CHAST is currently not observed because locations are on summer time / daylight saving time and are observing CHADT.

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

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