Chatham Island Standard Time (CHAST)

Chatham Island Standard Time (CHAST) operates at UTC+12:45 outside of daylight saving months. Also known as "Chatham Time," CHAST is the official time zone for the Chatham Islands, a small group of islands part of New Zealand, providing a consistent and reliable time standard separate from the mainland.

Importance and Global Use of CHAST

CHAST is vital for managing daily life, transportation, and local administration on the Chatham Islands. Its distinct 45-minute offset from New Zealand Standard Time supports local needs, including fishing, community services, and seasonal tourism, giving residents a practical time zone that matches their geographic and daylight patterns.

Internationally, CHAST helps coordinate travel, shipping, and business with mainland New Zealand and the wider Pacific region. Its clear UTC+12:45 offset ensures smooth scheduling with partners and maintains the Chatham Islands' link to national and international economic activities.

Where and When CHAST is used worldwide