Linked from

The 21 pages that link to Coordinated Universal Time, each with the reason it gives.

• Atomic clockRelated: Atomic-clock measurements supply UTC, with leap seconds historically aligning it to Earth’s rotation.

• SecondRelated: Its atomic-clock timescales are measured and coordinated in seconds.

• Time zoneRelated: Time-zone offsets specify local time relative to this global standard.

• ISO 8601Related: The standard uses UTC as the reference behind its Z time designator.

• Greenwich Mean TimeCompared with: UTC is the modern standard commonly meant when GMT is used as a global time reference.

• HourRelated: Civil clocks express UTC time using hours, minutes, and seconds.

• Daylight saving timeRelated: Local daylight-saving schedules are expressed as offsets from this global reference.

• Leap secondRelated: UTC is the time scale whose seconds are lengthened or repeated when a leap second is inserted.

• Universal TimeCompared with: It combines atomic-clock regularity with limits on its divergence from UT1.

• ClockRelated: Clocks are commonly set or calibrated against this shared global standard.

• Unix timeRelated: Unix timestamps use UTC to define the epoch and interpret instants.

• Earth orientation parametersCompared with: UTC is a uniform civil scale, while UT1 reflects the rotation measured by these parameters.

• Network Time ProtocolRelated: NTP implementations commonly distribute time expressed on the UTC timescale.

• International Atomic TimeCompared with: UTC shares TAI’s atomic basis but inserts leap seconds; their offset changes over time.

• Railway timeNarrower topic: UTC is the modern global reference system beyond railway-era standards.

• DayRelated: It keeps global clocks near Earth's irregular rotation without redefining the civil day.

• MidnightNarrower topic: Local midnight is determined by applying a time-zone offset to this standard.

• 24-hour clockCompared with: UTC is a time standard, not a clock notation, though it is commonly written with 24-hour hours.

• Caesium standardRelated: Caesium-clock measurements help realize the atomic basis of UTC.

• Day (time unit)Related: It organizes civil time into days while accommodating the mismatch with Earth's rotation.

• Real-time clockRelated: Clock settings may be interpreted as UTC or local time, affecting system startup and dual booting.