UTC−12:00

thumb|300px|UTC−12:00: blue (December), orange (June), yellow (year-round), light blue (sea areas) UTC−12:00 is an identifier for a time offset from UTC of −12:00. It is the last to enter a New Year, and is sometimes referred to as the International Date Line West (IDLW) time zone.

==Characteristics== UTC−12:00 is a nautical time zone comprising the high seas between 180° and 172°30′W longitude, and the time is obtained by subtracting twelve hours from Coordinated Universal Time (UTC). No inhabited territory lies within this time zone offset, either as standard time or daylight saving time; it only comprises the United States Minor Outlying Islands, specifically Baker Island and Howland Island (strict nature reserves belonging to the United States), as standard time. It is therefore also sometimes known as Baker Island Time (BIT).