Universal Time - Revision history

John at 23:48, 6 October 2019

2019-10-06T23:48:56Z

John at 23:48, 6 October 2019

2019-10-06T23:48:27Z

John at 23:47, 6 October 2019

2019-10-06T23:47:26Z

John at 23:46, 6 October 2019

2019-10-06T23:46:59Z

John: Created page with "{{short description|Recognized maintainers of atomic clocks from which UTC is calculated}} '''List of UTC timing centers''' is a list of over 70 recognized maintainers of at..."

2019-10-06T15:40:09Z

Created page with "{{short description|Recognized maintainers of atomic clocks from which UTC is calculated}} '''List of UTC timing centers''' is a list of over 70 recognized maintainers of at..."

New page

{{short description|Recognized maintainers of atomic clocks from which UTC is calculated}}
'''List of UTC timing centers''' is a list of over 70 recognized maintainers of [[atomic clock]]s around the world from which [[UTC]] is calculated.<ref>[https://www.bipm.org/utils/en/pdf/time_ann_rep/Time_annual_report_2014/11_Table3_TAR14.pdf List of UTC timing centers] BIPM (Bureau International des Poids et Mesures). Downloaded June 23, 2016.</ref> Below are links to some of the more notable time centers which contribute to the calculation of UTC. UTC is calculated by the [[International Bureau of Weights and Measures]] (BIPM)<ref>[https://www.bipm.org/en/worldwide-metrology/national/ National Metrology Institutes (NMIs)] BIPM</ref> using weighted averages of the various times as reported by these 70+ listed timing centers.<ref>[https://www.bipm.org/utils/en/pdf/time_ann_rep/Time_annual_report_2014/7_establishment_TAR14.pdf Establishment of International Atomic Time and of Coordinated Universal Time] BIPM description of UTC calculation procedures. Downloaded June 23, 2016.</ref><ref>[http://literature.cdn.keysight.com/litweb/pdf/5965-7984E.pdf The Science of Timekeeping] by Agilent Technologies, 1997, 2000. Downloaded June 23, 2016.</ref>

When available, links are provided to the relevant "Time Page" displaying the current time as shown from the given service. ''Apparent'' times may vary due to variations in internet transmission times from various locations.

#[https://www.nrc-cnrc.gc.ca/eng/services/time/ Canada: National Research Council]
#[https://syrte.obspm.fr/spip/services/ref-temps/ France: Systemes de Reference Temps Espace], [https://syrte.obspm.fr/cgi-bin/heure_op_js/ Time Page]
#[https://vsl.nl/ Netherlands: VSL], [https://vsl.nl/en/technologies/time-and-frequency Time page]
#[http://www.npl.co.uk/science-technology/time-frequency/ United Kingdom: National Physical Laboratory]
#[https://www.nist.gov/pml/time-and-frequency-division United States: National Institute of Standards and Technology], [https://nist.time.gov Time Page]
#[http://tycho.usno.navy.mil United States: Naval Observatory], [http://tycho.usno.navy.mil/what.html Time Page]

== See also ==
* [[Coordinated Universal Time]]
* [[Time]]

== References ==
{{Reflist|30em}}

[[Category:Timekeeping]]

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	#[http://tycho.usno.navy.mil United States: Naval Observatory], [http://tycho.usno.navy.mil/what.html Time Page]		#[http://tycho.usno.navy.mil United States: Naval Observatory], [http://tycho.usno.navy.mil/what.html Time Page]

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	#[https://www.nist.gov/pml/time-and-frequency-division United States: National Institute of Standards and Technology], [https://nist.time.gov Time Page]		#[https://www.nist.gov/pml/time-and-frequency-division United States: National Institute of Standards and Technology], [https://nist.time.gov Time Page]
	#[http://tycho.usno.navy.mil United States: Naval Observatory], [http://tycho.usno.navy.mil/what.html Time Page]		#[http://tycho.usno.navy.mil United States: Naval Observatory], [http://tycho.usno.navy.mil/what.html Time Page]
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← Older revision		Revision as of 23:47, 6 October 2019
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	#[https://www.nist.gov/pml/time-and-frequency-division United States: National Institute of Standards and Technology], [https://nist.time.gov Time Page]		#[https://www.nist.gov/pml/time-and-frequency-division United States: National Institute of Standards and Technology], [https://nist.time.gov Time Page]
	#[http://tycho.usno.navy.mil United States: Naval Observatory], [http://tycho.usno.navy.mil/what.html Time Page]		#[http://tycho.usno.navy.mil United States: Naval Observatory], [http://tycho.usno.navy.mil/what.html Time Page]
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−	~~{{Reflist\|30em}}~~
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−	~~[[Category:Timekeeping]]~~

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 #[https://www.nist.gov/pml/time-and-frequency-division United States: National Institute of Standards and Technology], [https://nist.time.gov Time Page]
 #[http://tycho.usno.navy.mil United States: Naval Observatory], [http://tycho.usno.navy.mil/what.html Time Page]
 == References ==