Coordinated Universal Time (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Coordinated Universal Time" in English language version.

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Seidelmann & Seago 2011, p. S190. Seidelmann, P. Kenneth; Seago, John H. (August 2011). "Time scales, their users, and leap seconds". Metrologia. 48 (4): S186 – S194. Bibcode:2011Metro..48S.186S. doi:10.1088/0026-1394/48/4/S09. S2CID 55945838. Archived from the original on 19 October 2012.

aopa.org

Aviation Time 2006. "Aviation Time". AOPA's Path to Aviation. Aircraft Owners and Pilots Association. 2006. Archived from the original on 27 November 2006. Retrieved 17 July 2011.

archive.org

Seidelmann 1992, p. 7. Seidelmann, P Kenneth, ed. (1992). Explanatory Supplement to the Astronomical Almanac (2nd ed.). Mill Valley, CA: University Science Books. ISBN 0-935702-68-7.
Seidelmann 1992, pp. 85–87. Seidelmann, P Kenneth, ed. (1992). Explanatory Supplement to the Astronomical Almanac (2nd ed.). Mill Valley, CA: University Science Books. ISBN 0-935702-68-7.

arrl.org

Horzepa 2010. Horzepa, Stan (17 September 2010). "Surfin': Time for Ham Radio". American Radio Relay League. Archived from the original on 23 September 2010. Retrieved 24 October 2011.

bbc.co.uk

Leap decision postponed 2012. "Leap second decision is postponed". BBC News. 19 January 2012. Archived from the original on 1 February 2019. Retrieved 21 July 2018.

bipm.org

McCarthy 2009, p. 4. McCarthy, D. (2 June 2009). "Note on Coordinated Universal Time (CCTF/09-32)" (PDF). Archived from the original on 24 November 2022. Retrieved 17 August 2022.
"Resolutions of the General Conference on Weights and Measures (27th Meeting)". Bureau International des Poids et Mesures. 19 November 2022. Archived from the original on 19 November 2022. Retrieved 19 August 2022.
SI Brochure (9th ed.). BIPM. 2019. French version. Retrieved 9 September 2023.
"Circular T". International Bureau of Weights and Measures. Archived from the original on 30 June 2022. Retrieved 17 June 2022.
McCarthy 2009, p. 3. McCarthy, D. (2 June 2009). "Note on Coordinated Universal Time (CCTF/09-32)" (PDF). Archived from the original on 24 November 2022. Retrieved 17 August 2022.
McCarthy 2009, p. 5. McCarthy, D. (2 June 2009). "Note on Coordinated Universal Time (CCTF/09-32)" (PDF). Archived from the original on 24 November 2022. Retrieved 17 August 2022.
BIPM

books.google.com

Evers 2013, p. 74. Evers, Liz (2013). It's About Time: From Calendars and Clocks to Moon Cycles and Light Years - A History. Michael O'Mara. ISBN 978-1-78243-087-2.

cam.ac.uk

cl.cam.ac.uk

Nelson et al. 2001, p. 515. Nelson, Robert A.; McCarthy, Dennis D.; Malys, S.; Levine, J.; Guinot, B.; Fliegel, H. F.; Beard, R. L.; Bartholomew, T. R. (2001). "The leap second: its history and possible future" (PDF). Metrologia. 38 (6): 509–529. Bibcode:2001Metro..38..509N. doi:10.1088/0026-1394/38/6/6. S2CID 250759447. Archived (PDF) from the original on 30 January 2022. Retrieved 18 June 2022.

cornell.edu

law.cornell.edu

15 U.S. Code § 261 2007. "15 U.S. Code § 261 – Zones for standard time; interstate or foreign commerce". U.S. Code. Legal Information Institute. 2007. Archived from the original on 19 June 2022. Retrieved 19 June 2022.
15 U.S. Code § 260a 2005. "15 U.S. Code § 260a – Advancement of time or changeover dates". U.S. Code. Legal Information Institute. 2005. Archived from the original on 16 October 2021. Retrieved 19 June 2022.

doi.org

Guinot 2011, p. S181. Guinot, Bernard (August 2011). "Solar time, legal time, time in use". Metrologia. 48 (4): S181–185. Bibcode:2011Metro..48S.181G. doi:10.1088/0026-1394/48/4/S08. S2CID 121852011.
Markowitz et al. 1958. Markowitz, W.; Hall, R.; Essen, L.; Parry, J. (August 1958). "Frequency of caesium in terms of Ephemeris Time" (PDF). Physical Review Letters. 1 (3): 105–107. Bibcode:1958PhRvL...1..105M. doi:10.1103/PhysRevLett.1.105. Archived (PDF) from the original on 19 October 2008. Retrieved 18 October 2008.
Nelson et al. 2001, p. 515. Nelson, Robert A.; McCarthy, Dennis D.; Malys, S.; Levine, J.; Guinot, B.; Fliegel, H. F.; Beard, R. L.; Bartholomew, T. R. (2001). "The leap second: its history and possible future" (PDF). Metrologia. 38 (6): 509–529. Bibcode:2001Metro..38..509N. doi:10.1088/0026-1394/38/6/6. S2CID 250759447. Archived (PDF) from the original on 30 January 2022. Retrieved 18 June 2022.
Essen 1968, pp. 161–165. Essen, L. (1968). "Time Scales" (PDF). Metrologia. 4 (4): 161–165. Bibcode:1968Metro...4..161E. doi:10.1088/0026-1394/4/4/003. S2CID 250771250. Archived (PDF) from the original on 14 December 2017. Retrieved 18 October 2008.
Agnew, Duncan Car (27 March 2024). "A global timekeeping problem postponed by global warming". Nature. 628 (8007): 333–336. Bibcode:2024Natur.628..333A. doi:10.1038/s41586-024-07170-0. PMID 38538793.
Stephenson & Morrison 1995. Stephenson, F. R.; Morrison, L. V. (1995). "Long-term fluctuations in the Earth's rotation: 700 BC to AD 1990". Philosophical Transactions of the Royal Society A. 351 (1695): 165–202. Bibcode:1995RSPTA.351..165S. doi:10.1098/rsta.1995.0028. S2CID 120718607.
Seidelmann & Seago 2011, p. S190. Seidelmann, P. Kenneth; Seago, John H. (August 2011). "Time scales, their users, and leap seconds". Metrologia. 48 (4): S186 – S194. Bibcode:2011Metro..48S.186S. doi:10.1088/0026-1394/48/4/S09. S2CID 55945838. Archived from the original on 19 October 2012.

greenwichmeantime.com

wwp.greenwichmeantime.com

Military & Civilian Time Designations n.d. "Military & Civilian Time Designations". wwp. Archived from the original on 14 September 2016. Retrieved 2 June 2007.
Iceland 2011. "Iceland". 2011. Archived from the original on 18 October 2011.

harvard.edu

ui.adsabs.harvard.edu

Guinot 2011, p. S181. Guinot, Bernard (August 2011). "Solar time, legal time, time in use". Metrologia. 48 (4): S181–185. Bibcode:2011Metro..48S.181G. doi:10.1088/0026-1394/48/4/S08. S2CID 121852011.
Markowitz et al. 1958. Markowitz, W.; Hall, R.; Essen, L.; Parry, J. (August 1958). "Frequency of caesium in terms of Ephemeris Time" (PDF). Physical Review Letters. 1 (3): 105–107. Bibcode:1958PhRvL...1..105M. doi:10.1103/PhysRevLett.1.105. Archived (PDF) from the original on 19 October 2008. Retrieved 18 October 2008.
Nelson et al. 2001, p. 515. Nelson, Robert A.; McCarthy, Dennis D.; Malys, S.; Levine, J.; Guinot, B.; Fliegel, H. F.; Beard, R. L.; Bartholomew, T. R. (2001). "The leap second: its history and possible future" (PDF). Metrologia. 38 (6): 509–529. Bibcode:2001Metro..38..509N. doi:10.1088/0026-1394/38/6/6. S2CID 250759447. Archived (PDF) from the original on 30 January 2022. Retrieved 18 June 2022.
Markowitz 1988. Markowitz, Wm. (1988). "Comparisons of ET (Solar), ET (Lunar), UT and TDT". In Babcock, A. K.; Wilkins, G. A. (eds.). The Earth's Rotation and Reference Frames for Geodesy and Geophysics: Proceedings of the 128th Symposium of the International Astronomical Union, held in Coolfont, West Virginia, U.S.A., 20–24 October 1986. International Astronomical Union Symposia. Vol. 128. Dordrecht: Kluwer Academic Publishers. pp. 413–418. Bibcode:1988IAUS..128..413M. ISBN 978-90-277-2657-5.
Essen 1968, pp. 161–165. Essen, L. (1968). "Time Scales" (PDF). Metrologia. 4 (4): 161–165. Bibcode:1968Metro...4..161E. doi:10.1088/0026-1394/4/4/003. S2CID 250771250. Archived (PDF) from the original on 14 December 2017. Retrieved 18 October 2008.
Agnew, Duncan Car (27 March 2024). "A global timekeeping problem postponed by global warming". Nature. 628 (8007): 333–336. Bibcode:2024Natur.628..333A. doi:10.1038/s41586-024-07170-0. PMID 38538793.
Stephenson & Morrison 1995. Stephenson, F. R.; Morrison, L. V. (1995). "Long-term fluctuations in the Earth's rotation: 700 BC to AD 1990". Philosophical Transactions of the Royal Society A. 351 (1695): 165–202. Bibcode:1995RSPTA.351..165S. doi:10.1098/rsta.1995.0028. S2CID 120718607.
Seidelmann & Seago 2011, p. S190. Seidelmann, P. Kenneth; Seago, John H. (August 2011). "Time scales, their users, and leap seconds". Metrologia. 48 (4): S186 – S194. Bibcode:2011Metro..48S.186S. doi:10.1088/0026-1394/48/4/S09. S2CID 55945838. Archived from the original on 19 October 2012.

iau.org

IAU resolutions 1976. "IAU resolutions adopted at the XVIth General Assembly, Grenoble, France, 1976" (PDF). 1976. Archived (PDF) from the original on 2 May 2019. Retrieved 18 June 2022. Resolution no. 3 by Commissions 4 (Ephemerides/Ephémérides) and 31 (Time/L'Heure) (near the end of the document) "recommend that the following notations be used in all languages", UT0(i), UT1(i), UT2(i), UTC, UTC(i), UT, where (i) is institution "i".

iers.org

International Earth Rotation and Reference Systems Service 2011. International Earth Rotation and Reference Systems Service (19 July 2011). "IERS Bulletins". Archived from the original on 13 June 2022. Retrieved 18 June 2022.

datacenter.iers.org

"Plots for UT1-UTC – Bulletin A All". International Earth Rotation and Reference Systems Service. 16 September 2021. Archived from the original on 23 October 2021. Retrieved 16 September 2021.

itu.int

ITU Radiocommunication Assembly 2002, p. 3. ITU Radiocommunication Assembly (2002). "Standard-frequency and time-signal emissions" (PDF). International Telecommunication Union. Archived (PDF) from the original on 27 April 2022. Retrieved 2 August 2011.
ITU Radiocommunication Assembly 2002. ITU Radiocommunication Assembly (2002). "Standard-frequency and time-signal emissions" (PDF). International Telecommunication Union. Archived (PDF) from the original on 27 April 2022. Retrieved 2 August 2011.
"ITU World Radiocommunication Conference set for Geneva, 2–27 November 2015" (Press release). International Telecommunication Union. 2015. Retrieved 3 November 2015.
"Coordinated Universal Time (UTC) to retain "leap second"". itu.int (Press release). Retrieved 12 July 2017.

leapsecond.com

Markowitz et al. 1958. Markowitz, W.; Hall, R.; Essen, L.; Parry, J. (August 1958). "Frequency of caesium in terms of Ephemeris Time" (PDF). Physical Review Letters. 1 (3): 105–107. Bibcode:1958PhRvL...1..105M. doi:10.1103/PhysRevLett.1.105. Archived (PDF) from the original on 19 October 2008. Retrieved 18 October 2008.
Essen 1968, pp. 161–165. Essen, L. (1968). "Time Scales" (PDF). Metrologia. 4 (4): 161–165. Bibcode:1968Metro...4..161E. doi:10.1088/0026-1394/4/4/003. S2CID 250771250. Archived (PDF) from the original on 14 December 2017. Retrieved 18 October 2008.

nature.com

Agnew, Duncan Car (27 March 2024). "A global timekeeping problem postponed by global warming". Nature. 628 (8007): 333–336. Bibcode:2024Natur.628..333A. doi:10.1038/s41586-024-07170-0. PMID 38538793.

navy.mil

maia.usno.navy.mil

History of TAI-UTC c. 2009. "History of TAI-UTC". Time Service Dept., U.S. Naval Observatory. c. 2009. Archived from the original on 19 October 2019. Retrieved 4 January 2009.

doncio.navy.mil

Chester 2015. Chester, Geoff (15 June 2015). "Wait a second... 2015 will be a little longer". CHIPS: The Department of the Navy's Information Technology Magazine. Department of the Navy. Archived from the original on 12 February 2022. Retrieved 12 March 2021.

cnmoc.usff.navy.mil

"Are Negative Leap Seconds in Our Future?" (PDF) (Press release). US Naval Observatory. 10 February 2021. Retrieved 18 June 2022.

newindianexpress.com

"Scientists propose 'leap hour' to fix time system". The New Indian Express. 14 May 2012. Archived from the original on 3 September 2022. Retrieved 3 September 2022.

nih.gov

pubmed.ncbi.nlm.nih.gov

Agnew, Duncan Car (27 March 2024). "A global timekeeping problem postponed by global warming". Nature. 628 (8007): 333–336. Bibcode:2024Natur.628..333A. doi:10.1038/s41586-024-07170-0. PMID 38538793.

nist.gov

"Why is UTC used as the acronym for Coordinated Universal Time instead of CUT?". NIST Time Frequently Asked Questions (FAQ). National Institute of Standards and Technology, Time and Frequency Division. 7 January 2025. Archived from the original on 6 July 2011. Retrieved 17 July 2011.
Nelson, Lombardi & Okayama 2005, p. 46. Nelson, G.K.; Lombardi, M.A.; Okayama, D.T. (2005). "NIST Time and Frequency Radio Stations: WWV, WWVH, and WWVB" (PDF). National Institute of Standards and Technology. (Special Publication 250-67). Archived (PDF) from the original on 26 June 2008.
"How often do we have leap seconds?". NIST Time Frequently Asked Questions (FAQ). National Institute of Standards and Technology, Time and Frequency Division. 4 February 2010. Archived from the original on 12 August 2016. Retrieved 13 July 2017.

nvlpubs.nist.gov

Blair 1974, p. 32. Blair, Byron E., ed. (1974), Time and Frequency: Theory and Fundamentals (PDF), National Bureau of Standards, National Institute of Standards and Technology since 1988, p. 32, archived (PDF) from the original on 1 March 2021, retrieved 30 June 2019

noao.edu

iraf.noao.edu

Seaman, Rob (9 April 2001). "Upgrade, don't degrade". Archived from the original on 2 June 2013. Retrieved 10 September 2015.

obspm.fr

hpiers.obspm.fr

Bulletin C 2022. "Bulletin C". International Earth Rotation and Reference Systems Service. 5 July 2022. Archived from the original on 27 April 2022. Retrieved 18 June 2022.

semanticscholar.org

api.semanticscholar.org

Guinot 2011, p. S181. Guinot, Bernard (August 2011). "Solar time, legal time, time in use". Metrologia. 48 (4): S181–185. Bibcode:2011Metro..48S.181G. doi:10.1088/0026-1394/48/4/S08. S2CID 121852011.
Nelson et al. 2001, p. 515. Nelson, Robert A.; McCarthy, Dennis D.; Malys, S.; Levine, J.; Guinot, B.; Fliegel, H. F.; Beard, R. L.; Bartholomew, T. R. (2001). "The leap second: its history and possible future" (PDF). Metrologia. 38 (6): 509–529. Bibcode:2001Metro..38..509N. doi:10.1088/0026-1394/38/6/6. S2CID 250759447. Archived (PDF) from the original on 30 January 2022. Retrieved 18 June 2022.
Essen 1968, pp. 161–165. Essen, L. (1968). "Time Scales" (PDF). Metrologia. 4 (4): 161–165. Bibcode:1968Metro...4..161E. doi:10.1088/0026-1394/4/4/003. S2CID 250771250. Archived (PDF) from the original on 14 December 2017. Retrieved 18 October 2008.
Stephenson & Morrison 1995. Stephenson, F. R.; Morrison, L. V. (1995). "Long-term fluctuations in the Earth's rotation: 700 BC to AD 1990". Philosophical Transactions of the Royal Society A. 351 (1695): 165–202. Bibcode:1995RSPTA.351..165S. doi:10.1098/rsta.1995.0028. S2CID 120718607.
Seidelmann & Seago 2011, p. S190. Seidelmann, P. Kenneth; Seago, John H. (August 2011). "Time scales, their users, and leap seconds". Metrologia. 48 (4): S186 – S194. Bibcode:2011Metro..48S.186S. doi:10.1088/0026-1394/48/4/S09. S2CID 55945838. Archived from the original on 19 October 2012.

telegraph.co.uk

Irvine 2008. Irvine, Chris (18 December 2008). "Scientists propose 'leap hour' to fix time system". The Telegraph. Archived from the original on 14 May 2011.

ucolick.org

Arias, Guinot & Quinn 2003. Arias, E. F.; Guinot, B.; Quinn, T. J. (29 May 2003). Rotation of the Earth and Time scales (PDF). ITU-R Special Rapporteur Group Colloquium on the UTC Time Scale.
Allen 2011a. Allen, Steve (2011a). "UTC is doomed". Archived from the original on 4 December 2008. Retrieved 18 July 2011.

udel.edu

eecis.udel.edu

How NTP Works 2011. "How NTP Works". NTP: The Network Time Protocol. 28 July 2011. Archived from the original on 20 June 2014. Retrieved 18 June 2022. See heading "NTP Timescale and Data Formats".

usatoday.com

Williams 2005. Williams, Jack (17 May 2005). "Understanding and using Zulu time". USA Today. Archived from the original on 21 June 2007. Retrieved 25 February 2007.

uscg.gov

navcen.uscg.gov

Nelson & McCarthy 2005, p. 15. Nelson, Robert A.; McCarthy, Dennis D. (13 September 2005). Coordinated Universal Time (UTC) and the Future of the Leap Second. Civil GPS Interface Committee. United States Coast Guard. Archived from the original on 29 April 2011.

web.archive.org

McCarthy 2009, p. 4. McCarthy, D. (2 June 2009). "Note on Coordinated Universal Time (CCTF/09-32)" (PDF). Archived from the original on 24 November 2022. Retrieved 17 August 2022.
"Resolutions of the General Conference on Weights and Measures (27th Meeting)". Bureau International des Poids et Mesures. 19 November 2022. Archived from the original on 19 November 2022. Retrieved 19 August 2022.
"Why is UTC used as the acronym for Coordinated Universal Time instead of CUT?". NIST Time Frequently Asked Questions (FAQ). National Institute of Standards and Technology, Time and Frequency Division. 7 January 2025. Archived from the original on 6 July 2011. Retrieved 17 July 2011.
IAU resolutions 1976. "IAU resolutions adopted at the XVIth General Assembly, Grenoble, France, 1976" (PDF). 1976. Archived (PDF) from the original on 2 May 2019. Retrieved 18 June 2022. Resolution no. 3 by Commissions 4 (Ephemerides/Ephémérides) and 31 (Time/L'Heure) (near the end of the document) "recommend that the following notations be used in all languages", UT0(i), UT1(i), UT2(i), UTC, UTC(i), UT, where (i) is institution "i".
How NTP Works 2011. "How NTP Works". NTP: The Network Time Protocol. 28 July 2011. Archived from the original on 20 June 2014. Retrieved 18 June 2022. See heading "NTP Timescale and Data Formats".
Aviation Time 2006. "Aviation Time". AOPA's Path to Aviation. Aircraft Owners and Pilots Association. 2006. Archived from the original on 27 November 2006. Retrieved 17 July 2011.
Horzepa 2010. Horzepa, Stan (17 September 2010). "Surfin': Time for Ham Radio". American Radio Relay League. Archived from the original on 23 September 2010. Retrieved 24 October 2011.
ITU Radiocommunication Assembly 2002, p. 3. ITU Radiocommunication Assembly (2002). "Standard-frequency and time-signal emissions" (PDF). International Telecommunication Union. Archived (PDF) from the original on 27 April 2022. Retrieved 2 August 2011.
International Earth Rotation and Reference Systems Service 2011. International Earth Rotation and Reference Systems Service (19 July 2011). "IERS Bulletins". Archived from the original on 13 June 2022. Retrieved 18 June 2022.
History of TAI-UTC c. 2009. "History of TAI-UTC". Time Service Dept., U.S. Naval Observatory. c. 2009. Archived from the original on 19 October 2019. Retrieved 4 January 2009.
"Circular T". International Bureau of Weights and Measures. Archived from the original on 30 June 2022. Retrieved 17 June 2022.
Military & Civilian Time Designations n.d. "Military & Civilian Time Designations". wwp. Archived from the original on 14 September 2016. Retrieved 2 June 2007.
Williams 2005. Williams, Jack (17 May 2005). "Understanding and using Zulu time". USA Today. Archived from the original on 21 June 2007. Retrieved 25 February 2007.
Iceland 2011. "Iceland". 2011. Archived from the original on 18 October 2011.
15 U.S. Code § 261 2007. "15 U.S. Code § 261 – Zones for standard time; interstate or foreign commerce". U.S. Code. Legal Information Institute. 2007. Archived from the original on 19 June 2022. Retrieved 19 June 2022.
15 U.S. Code § 260a 2005. "15 U.S. Code § 260a – Advancement of time or changeover dates". U.S. Code. Legal Information Institute. 2005. Archived from the original on 16 October 2021. Retrieved 19 June 2022.
McCarthy 2009, p. 3. McCarthy, D. (2 June 2009). "Note on Coordinated Universal Time (CCTF/09-32)" (PDF). Archived from the original on 24 November 2022. Retrieved 17 August 2022.
Markowitz et al. 1958. Markowitz, W.; Hall, R.; Essen, L.; Parry, J. (August 1958). "Frequency of caesium in terms of Ephemeris Time" (PDF). Physical Review Letters. 1 (3): 105–107. Bibcode:1958PhRvL...1..105M. doi:10.1103/PhysRevLett.1.105. Archived (PDF) from the original on 19 October 2008. Retrieved 18 October 2008.
Nelson & McCarthy 2005, p. 15. Nelson, Robert A.; McCarthy, Dennis D. (13 September 2005). Coordinated Universal Time (UTC) and the Future of the Leap Second. Civil GPS Interface Committee. United States Coast Guard. Archived from the original on 29 April 2011.
Nelson et al. 2001, p. 515. Nelson, Robert A.; McCarthy, Dennis D.; Malys, S.; Levine, J.; Guinot, B.; Fliegel, H. F.; Beard, R. L.; Bartholomew, T. R. (2001). "The leap second: its history and possible future" (PDF). Metrologia. 38 (6): 509–529. Bibcode:2001Metro..38..509N. doi:10.1088/0026-1394/38/6/6. S2CID 250759447. Archived (PDF) from the original on 30 January 2022. Retrieved 18 June 2022.
Essen 1968, pp. 161–165. Essen, L. (1968). "Time Scales" (PDF). Metrologia. 4 (4): 161–165. Bibcode:1968Metro...4..161E. doi:10.1088/0026-1394/4/4/003. S2CID 250771250. Archived (PDF) from the original on 14 December 2017. Retrieved 18 October 2008.
McCarthy 2009, p. 5. McCarthy, D. (2 June 2009). "Note on Coordinated Universal Time (CCTF/09-32)" (PDF). Archived from the original on 24 November 2022. Retrieved 17 August 2022.
Blair 1974, p. 32. Blair, Byron E., ed. (1974), Time and Frequency: Theory and Fundamentals (PDF), National Bureau of Standards, National Institute of Standards and Technology since 1988, p. 32, archived (PDF) from the original on 1 March 2021, retrieved 30 June 2019
Nelson, Lombardi & Okayama 2005, p. 46. Nelson, G.K.; Lombardi, M.A.; Okayama, D.T. (2005). "NIST Time and Frequency Radio Stations: WWV, WWVH, and WWVB" (PDF). National Institute of Standards and Technology. (Special Publication 250-67). Archived (PDF) from the original on 26 June 2008.
ITU Radiocommunication Assembly 2002. ITU Radiocommunication Assembly (2002). "Standard-frequency and time-signal emissions" (PDF). International Telecommunication Union. Archived (PDF) from the original on 27 April 2022. Retrieved 2 August 2011.
Chester 2015. Chester, Geoff (15 June 2015). "Wait a second... 2015 will be a little longer". CHIPS: The Department of the Navy's Information Technology Magazine. Department of the Navy. Archived from the original on 12 February 2022. Retrieved 12 March 2021.
"How often do we have leap seconds?". NIST Time Frequently Asked Questions (FAQ). National Institute of Standards and Technology, Time and Frequency Division. 4 February 2010. Archived from the original on 12 August 2016. Retrieved 13 July 2017.
Bulletin C 2022. "Bulletin C". International Earth Rotation and Reference Systems Service. 5 July 2022. Archived from the original on 27 April 2022. Retrieved 18 June 2022.
"Plots for UT1-UTC – Bulletin A All". International Earth Rotation and Reference Systems Service. 16 September 2021. Archived from the original on 23 October 2021. Retrieved 16 September 2021.
Seaman, Rob (9 April 2001). "Upgrade, don't degrade". Archived from the original on 2 June 2013. Retrieved 10 September 2015.
Irvine 2008. Irvine, Chris (18 December 2008). "Scientists propose 'leap hour' to fix time system". The Telegraph. Archived from the original on 14 May 2011.
Allen 2011a. Allen, Steve (2011a). "UTC is doomed". Archived from the original on 4 December 2008. Retrieved 18 July 2011.
Seidelmann & Seago 2011, p. S190. Seidelmann, P. Kenneth; Seago, John H. (August 2011). "Time scales, their users, and leap seconds". Metrologia. 48 (4): S186 – S194. Bibcode:2011Metro..48S.186S. doi:10.1088/0026-1394/48/4/S09. S2CID 55945838. Archived from the original on 19 October 2012.
Leap decision postponed 2012. "Leap second decision is postponed". BBC News. 19 January 2012. Archived from the original on 1 February 2019. Retrieved 21 July 2018.
"Scientists propose 'leap hour' to fix time system". The New Indian Express. 14 May 2012. Archived from the original on 3 September 2022. Retrieved 3 September 2022.