Time Zones

Chatham Standard Time (CHAST)

Introduction

Chatham Standard Time (CHAST) is a unique time zone that is twelve hours and forty-five minutes ahead of Coordinated Universal Time (UTC plus 12 hours and 45 minutes). It is exclusively used in the Chatham Islands, New Zealand. This time zone is one of only three in the world with a 45-minute offset from UTC, making it quite distinctive.

Time Zone History

The Chatham Islands standardized their time in 1868 to be 12 hours and 15 minutes ahead of Greenwich Mean Time (GMT). However, the Standard Time Act 1945 set the time in New Zealand to UTC plus 12 hours, and the Chatham Islands informally set their clocks 45 minutes forward of this time. This unique offset was officially legislated by the Time Act 1974.

Geographical Coverage

Chatham Standard Time is observed exclusively in the Chatham Islands, New Zealand. The islands are known for their remote location and unique geographical features.

Daylight Saving Time (DST)

During the summer months, Chatham Standard Time observes daylight saving time, known as Chatham Daylight Time (CHADT). During this period, the time is advanced by one hour, making it 13 hours and 45 minutes ahead of UTC (UTC plus 13 hours and 45 minutes). Daylight saving time runs from the last Sunday in September at 2:45 AM to the first Sunday in April at 3:45 AM.

Major Cities

The major settlement in the Chatham Islands is Waitangi, which serves as the main hub for the local population. The islands are sparsely populated, with a small community that relies on fishing, farming, and tourism.

Local Culture and Traditions

The Chatham Islands have a rich cultural heritage, with a blend of Māori and European influences. The Moriori people, the original inhabitants of the islands, have a unique culture and history that is celebrated through various local traditions and customs.

Local Events and Holidays

Significant local events and holidays in the Chatham Islands include Waitangi Day, which is celebrated on February 6th, and the Chatham Islands Festival, which showcases local music, food, and crafts. These events are important for the local community and attract visitors from mainland New Zealand.

Other Names

Chatham Standard Time is commonly abbreviated as CHAST. During daylight saving time, it is referred to as Chatham Daylight Time (CHADT).

Interesting Facts

  • The Chatham Islands are one of the first places in the world to see the sunrise each day due to their unique time zone.
  • The Chatham Islands have their own distinct flora and fauna, including the Chatham Island black robin, which was once one of the world's rarest birds.
  • The time zone's 45-minute offset is shared only with Nepal Standard Time (UTC plus 5 hours and 45 minutes) and the unofficial Australian Central Western Time (UTC plus 8 hours and 45 minutes).