| Zulu Time (wikipedia) The world is divided into basically 24 time zones. For
easy reference in communications, a letter of the alphabet has been assigned to
each time zone. The "clock" at Greenwich, England is used as the standard clock
for international reference of time in communications, revolutions, military,
aviation, maritime and other activities that cross time zones. This gave rise to
the Zulu Meditation Wave that Traverse the planet twice each day
click here and read more The letter designator for this clock is Z. Zulu time is written in 24 hour format, always with four digits, and followed by the letter "Z" (e.g., 2118Z, 0024Z). Note that the phonetic alphabet is used for the letter Z (Zulu). This time is usually referred to as Zulu Time because of the letter assigned to this time zone. Its official name is Coordinated Universal Time or UTC. This time zone had previously been called Greenwich Mean Time (GMT) but was replaced with UTC in 1972 as the official world time standard changed. While GMT is based on Earth's rotation and celestial measurements, UTC is a based on cesium-beam atomic clocks. The two clocks are rarely more than a second apart as leap seconds are applied to UTC. The UTC time zone is sometimes denoted by the letter Z – a reference to the equivalent nautical time zone (GMT), which has been denoted by a Z since about 1950. The letter also refers to the "zone description" of zero hours, which has been used since 1920. See time zone history. Since the NATO phonetic alphabet and amateur radio word for Z is "Zulu", UTC is sometimes known as Zulu time. This is especially true in aviation, where Zulu is the universal standard. This ensures all pilots regardless of location are using the same 24-hour clock, thus avoiding confusion when flying between time zones. What happens on 2012 Dec. 21st at 11:11 AM Zulu Time? |
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