IAT meaning in Computing ?

Answer: What is International Atomic Time mean?

International Atomic Time (TAI, from the French name temps atomique international) is a high-precision atomic coordinate time standard based on the notional passage of proper time on Earth's geoid. It is a continuous scale of time, without leap seconds. It is the principal realisation of Terrestrial Time (with a fixed offset of epoch). It is also the basis for Coordinated Universal Time (UTC), which is used for civil timekeeping all over the Earth's surface. UTC deviates from TAI by a number of whole seconds. As of 1 January 2017, when another leap second was put into effect, UTC is currently exactly 37 seconds behind TAI. The 37 seconds result from the initial difference of 10 seconds at the start of 1972, plus 27 leap seconds in UTC since 1972.

TAI may be reported using traditional means of specifying days, carried over from non-uniform time standards based on the rotation of the Earth. Specifically, both Julian days and the Gregorian calendar are used. TAI in this form was synchronised with Universal Time at the beginning of 1958, and the two have drifted apart ever since, due to the changing motion of the Earth.

reference

Full Form	Category
Instructor Authorization Test	Academic & Science
Implicit Association Test	Academic & Science
Institute of Advanced Technology	Academic & Science
Insurance and Trust	Business
Internal Auditing Team	Business
Invesco Asia	Business
Iatia Ltd	Business
Internet access time	Computer and Networking
Internet Access and Telecommunications	Computing
International Atomic Time	Computing
Intervention Action Team	General
Initial Accreditation Training	General
Ice Age Trail	General
Indirect Antiglobulin Test	General
Interaction Appearance Theory	General
Intrinsic Actions Technique	General
Information Assurance Technical	General
Intreprinderea de Autoturisme Timisoara	General
Ingenieurgesellschaft Fur Automobiltechnik	General
Innovative Automobile Technology	General
Institute of Automobile Technology	General
Incoming Air Temp	General
Intake Air Temp	General
International ACH Transaction	General
Import Address Table	General
Interagency Aviation Training	General
Institute of Agricultural Technology	General
International ACH Transactions	General
Iso9660 Analyzer Tool	General
Is A Test	General
It's About Time	General
International Appalachian Trail	General
issued at The	General
Issued At This	General
Internal Air Transport	Governmental
Inter Arrival Time	Governmental
Intervention Assistance Team	Governmental
Institute of Ag Tech	Governmental
International Association of Trichologists	International
International Aqua Tech	International
Internet Appliance Toolkit	Internet
Internet Addiction Test	Internet
In Addition To	Internet
I Am Trash	Internet
Institute of Animal Technology	Medical
Immuno Augmentive Therapy	Medical
Immuno Augmentative Therapy	Medical
Intracarotid Amobarbital Test	Medical
Institute for Advanced Technology	Military and Defence
Initial Acceptance Test	Military and Defence
Iowa Terminal Railroad	Regional
Iowa Terminal Railroad Company (formerly ITR)	Regional
Integration and Test	Space Science
Integrated Avionics Test	Space Science
Intake Air Temperature	Space Science
Intelligent Agent Technology	Technology
Information and Technology	Technology
Integrated Access Terminal	Telecommunication
Incorrect Abbreviation for International Atomic Time (see Tai)	Time