Coordinated Universal Time

E8830

time scale time standard

Coordinated Universal Time (UTC) is the primary global time standard by which the world regulates clocks and time, serving as the basis for most civil time zones.

Observed surface forms (3)

Surface form	Occurrences
UTC	10
Coordinated Universal Time (UTC)	2
international time standard UTC	1

Statements (51)

Predicate	Object
instanceOf	time scale ⓘ time standard ⓘ
abbreviation	Coordinated Universal Time self-linksurface differs ⓘ surface form: UTC
basedOn	International Atomic Time ⓘ
basisFor	civil time ⓘ most civil time zones ⓘ
category	standards ⓘ timekeeping ⓘ
coordinatedWith	Earth rotation ⓘ International Atomic Time ⓘ
definedBy	International Bureau of Weights and Measures ⓘ International Telecommunication Union ⓘ
differenceFromTAI	integer number of seconds ⓘ
formalAdoptionYear	1972 ⓘ
fullName	Coordinated Universal Time self-link ⓘ
governingBody	International Earth Rotation and Reference Systems Service ⓘ
introducedInYear	1960s ⓘ
ISOStandard	ISO 8601 ⓘ
languageIndependentAbbreviation	UTC ⓘ
leapSecondAdjustment	1 second ⓘ
leapSecondDecisionBy	International Earth Rotation and Reference Systems Service ⓘ
leapSecondPurpose	to keep UTC close to mean solar time ⓘ
maintainedBy	International Bureau of Weights and Measures ⓘ surface form: Bureau International des Poids et Mesures International Bureau of Weights and Measures ⓘ national time laboratories ⓘ
notAdjustedFor	daylight saving time ⓘ
offsetRangeOfTimeZones	from UTC−12:00 to UTC+14:00 ⓘ
primaryUse	global time standard ⓘ regulation of clocks and time worldwide ⓘ
referenceLocation	Maritime Greenwich ⓘ surface form: Greenwich Observatory
referenceMeridian	Prime Meridian ⓘ
relatedTo	Greenwich Mean Time ⓘ
replaced	Greenwich Mean Time as international time standard ⓘ
representedInISO8601	trailing Z suffix ⓘ
successorOf	Greenwich Mean Time ⓘ
symbol	UTC ⓘ
timeOffsetReference	UTC+00:00 ⓘ zero offset ⓘ
timeScaleType	atomic time scale ⓘ
timeZoneDesignation	UTC±hh:mm ⓘ
usedAs	reference for time zones ⓘ
usedBy	most countries ⓘ
usedFor	aviation timekeeping ⓘ financial market time-stamping ⓘ global positioning systems ⓘ internet time synchronization ⓘ maritime navigation ⓘ satellite communication systems ⓘ scientific observations ⓘ
usesLeapSeconds	true ⓘ
ZNotationMeaning	Zulu time ⓘ

Referenced by (52)

Full triples — surface form annotated when it differs from this entity's canonical label.

Pacific/Chatham → timeStandard → Coordinated Universal Time ⓘ

Halley Research Station → timeZone → Coordinated Universal Time ⓘ

this entity surface form: UTC