Coordinated Universal Time. Same as GMT or Greenwich Mean Time. The two terms are often used loosely to refer to time kept on the Greenwich meridian (longitude zero), five hours ahead of Eastern Standard Time. UTC is the basis for the worldwide system of civil time. This time scale is kept by time laboratories around the world, including the U.S. Naval Observatory, and is determined using highly precise atomic clocks. The International Bureau of Weights and Measures makes use of data from the timing laboratories to provide the international standard UTC which is accurate to approximately a nanosecond (billionth of a second) per day. The length of a UTC second is defined in terms of an atomic transition of the element cesium under specific conditions, and is not directly related to any astronomical phenomena.
I received an email that was sent at 1:00 UTC time. This was equivalent to 6:00 PM Pacific Daylight Time.
by SuburbaniteWA May 13, 2007
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Acronym: Up The Crack.

descriptor added to the word "pants", as in "UTC pants".

Used by perving males in reference to females with a great ass wearing tight fitting slacks or pants (not jeans) that are pulled up tight around the butt crack so you can see the VPL and, from the front, a potentially major display of Camel Toe.
Me (from behind dark shades): "mate, check out the blondie over there in the UTC pants."

Anthony (putting down sandwich): "oh yesss. and from the lack of VPL i would say she's wearing her friday night lucky thong...."
by Australia Square March 27, 2009
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Abbreviation for "Under the Crown", meaning to print a number indicating a certain amount of money under the crown of a bottle of beer or something as a way to boost outlet sales. In order to cash these crowns, you need to collect and return them to the Brewery, though this is usually done by sales people instead of the restaurant owners or beer dealers themselves.
A:San Miguel launched a $0.5 UTC promotion in Guangzhou.
by Jeff Zhao September 16, 2006
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Coordinated Universal Time. The civil standard of marking universal time; formerly known as Greenwich Mean Time (GMT), then Zulu Time (ZT). Universal time is denoted in 24 hour format, usually omitting the colon: 1432 (14:32) = 2:32 p.m. Coordinated Universal Time is marked either as UTC or Z (for Zulu)
The Olympics Opening Ceremonies will air on television starting at 1530 UTC.


The Olympics Opening Ceremonies will air on television starting at 1530Z
by Gregg McCarrell May 17, 2007
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Abbr. Under the Counter. 1. Refers to medications that are not available over the counter nor by prescription, but are not illegal either. 2. Refers to the status of illegal drugs.
1. This is an experimental UTC medication.
2. Coke is only available on a UTC basis.
by Gurl Troll February 24, 2008
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Abbreviation for Up The Can. Refers to Anal Sex.
she took it UTC style.
by indydave July 8, 2005
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Unbelievably Thick Cock.

Hey, girl. It's UTC time.

I can't wait till it's time to play with my boyfriend's UTC.
by SuburbaniteWA May 13, 2007
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