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...he commonly discussed topics in such texts including planetary positions, timekeeping and calendar construction, eclipses, heliacal rising and settings, planetar ...

...darkgray; text-align: left;" | '''[[Intercalation (timekeeping)|Embolismic month]]''' ...nuel Arturo |year=2009 |title=The Muisca Calendar: An approximation to the timekeeping system of the ancient native people of the northeastern Andes of Colombia ( ...

...and time-dependent [[Field (physics)|fields]]. ''[[:category:Timekeeping|Timekeeping]]'' is a complex of technological and scientific issues, and part of the fo {{main|History of timekeeping devices}} ...

...ct and inexpensive, quartz timekeepers became the world's most widely used timekeeping technology, used in most clocks and [[watch]]es as well as computers and ot ...al-Tuningfork.jpg|thumb|Picture of a quartz crystal resonator, used as the timekeeping component in quartz watches and clocks, with the case removed. It is formed ...

{{About||related longer-term variations|ΔT (timekeeping)|regular changes in the length of a solar day through the year due to the o ...

...23-11-21 |website=www.merriam-webster.com |language=en}}</ref>|| [[Week]]s timekeeping, Western music [[letter notation]] ...ross (unit)|gross]]-great gross counting; [[12-hour clock]] and [[month]]s timekeeping; years of [[Chinese zodiac]]; [[Foot (unit)|foot]] and [[inch]]; [[Roman nu ...

* [[GPS time|Timekeeping in Global Positioning System]] ...

...ellite navigation)|Galileo Programme]] and the United States' [[GPS]]. The timekeeping [[Accuracy and precision|accuracy]] of the involved atomic clocks is import ..., which defines the [[Second#History of definition|mean solar second]] for timekeeping.<ref>{{Cite web |date=14 June 2022 |title=Milestones:First Atomic Clock, 19 ...

...a growing difference: the amount that TT is ahead of UT1 is known as [[ΔT (timekeeping)|Δ''T'']], or Delta ''T''.{{sfn|McCarthy|Seidelmann|2009|pp=86–67}} {{As of ...al years common except 4500, 5000, 5500, 6000, etc. but the quantity [[ΔT (timekeeping)|ΔT]] is not sufficiently predictable to form more precise proposals.{{r|Bl ...

...ain harvest as quickly as possible, [[Elisha]] refused to [[Intercalation (timekeeping)|intercalate]] that same year by adding an additional lunar month [[Adar]]. ...

...nd progressively accumulates a difference with ephemeris time called [[ΔT (timekeeping)|ΔT]] ("delta-T"). ...

...many questions in previous Greek mathematical astronomy, especially their timekeeping.<ref name=Gingerich1986 /> ...he mathematical way he applied the instrument to astrology, astronomy, and timekeeping.<ref name=Gingerich1986 /> The earliest known Astrolabe in existence today ...

...rtt–Synchronome clock|Shortt double-pendulum clock]], which was a national timekeeping standard in the late 1920s. ...

...ries were local to both latitude and altitude, so there was no standard of timekeeping. Nor had a unit of time been recognised as an essential base unit for the d ...