KnowraCoordinated Universal TimeLinked fromLinked fromThe 21 pages that link to Coordinated Universal Time, each with the reason it gives.All 21Related 14Narrower topic 2Compared with 5Greenwich Mean TimeCompared with: UTC is the modern standard commonly meant when GMT is used as a global time reference.Universal TimeCompared with: It combines atomic-clock regularity with limits on its divergence from UT1.Earth orientation parametersCompared with: UTC is a uniform civil scale, while UT1 reflects the rotation measured by these parameters.International Atomic TimeCompared with: UTC shares TAI’s atomic basis but inserts leap seconds; their offset changes over time.24-hour clockCompared with: UTC is a time standard, not a clock notation, though it is commonly written with 24-hour hours.