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Time zone 12 hours behind UTC
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.
[1]
As standard time (year-round)
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Oceania
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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
UTC
.
Characteristics of UTC?12:00
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A number of inhabited territories lie within the longitudinal limits of this time zone. These are
Tonga
,
Wallis and Futuna
and
Chatham Islands
as well as parts of
Chukotka Autonomous Okrug
of
Russia
, the US state of
Alaska
,
Fiji
,
Tokelau
and
Samoa
. However, none of them keep the date and time of UTC?12:00. Instead, they keep the time and date (or just the date) of one of the neighboring zones, usually because they belong, politically, to a country which lies mostly in the neighboring time zone.
Since the International Date Line West (IDLW) time zone represents the last place on
Earth
a particular time and date exists, this is referred to as
Anywhere on Earth
(AoE). A deadline specified as "Anywhere on Earth" has not passed if there is a place on Earth where the deadline has not passed, which is equivalent to the statement that the deadline has not passed in the UTC?12:00 zone.
[1]
The IDLW is also used in
software testing
for time zone related code that uses system default time zone, as in some cases they may be the same as on the developer's computer.
[
citation needed
]
Since the area of the IDLW has no programmers or data centers, there is no conflict.
See also
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References
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External links
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Media related to
UTC?12:00
at Wikimedia Commons
