Chatham Standard Time Zone Chatham Standard Time Zone The Chatham Standard Time Zone is a geographic region that keeps time by adding twelve hours and forty-five minutes to Coordinated Universal Time (UTC) resulting in . The Chatham Standard Time Zone is used exclusively in the Chatham Islands, New Zealand, located in the South Pacific Ocean at 43°53′54″S, 176°31′44″W. It is one of only three time zones with a 45-minute offset from UTC, the others being Nepal Time () and the unofficial Australian Central Western Time (). During summer daylight saving time is observed and clocks are advanced one hour. Chatham Daylight Time (CHADT) is
Aleutian Range (1000 mi). However the official designation "Aleutian Range" includes only the mainland peaks and the peaks on Unimak Island. The range is almost entirely roadless wilderness. Katmai National Park and Preserve, a large national park within the range, must be reached by boat or plane. The core Aleutian Range can be divided into three mountain groups. Listed from southwest to northeast, they are: See Aleutian Islands for the continuation of the range to the west of Unimak Island. Just to the north of the Aleutian Range are the Tordrillo Mountains, the southeasternmost extent of the Alaska Range. Selected mountains: Two