Category:Timekeeping

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This category is being discussed as part of a Categories for discussion process. As a result of this discussion, pages and files in this category may be recategorized (not deleted).

Please do not make major changes to this category (or to categories and pages related to this discussion), or remove this notice until the discussion has been closed.

chronometry

specifying measures of time-mesaurement in clear reference units

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Subclass of

measurement

Authority file
Q186398 GND ID: 4131097-4 Library of Congress authority ID: sh85135420 Bibliothèque nationale de France ID: 119594752 BNCF Thesaurus ID: 30250 NL CR AUT ID: ph136869, ph184822 National Library of Israel J9U ID: 987007536563305171
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Subcategories

This category has the following 43 subcategories, out of 43 total.

Timekeeping by country‎ (3 C)

!

Gallery pages of timekeeping‎ (12 P)

*

Animations of timekeeping‎ (2 C, 5 F)
Timekeepers‎ (3 C, 7 F)
Videos of timekeeping‎ (1 C)

A

Time in astronomy‎ (3 C, 3 F)

B

Time balls‎ (15 C, 37 F)

C

Calendars‎ (54 C, 6 P, 925 F)
Ceramic resonators‎ (9 F)
ChampionChip‎ (6 F)
Timekeeping components‎ (2 C, 1 F)
Crystal oscillators‎ (3 C, 84 F)
Crystal resonator‎ (2 C, 74 F)

D

Date (UNIX)‎ (1 F)
Time of day‎ (19 C, 1 P, 1 F)
Daylight saving time‎ (11 C, 60 F)
Timekeeping devices in the National Maritime Museum, London‎ (5 C)

E

Errors in timekeeping‎ (3 F)
Timekeeping exhibition (Deutsches Museum)‎ (1 C, 6 F)

F

French Republican decimal time‎ (3 C, 1 F)
Frequency counters‎ (3 C, 27 F)
Time and frequency standards‎ (2 C, 25 F)

G

Greenwich Time Signal‎ (4 F)
Time guns‎ (9 C, 10 F)

H

Hexadecimal time‎ (6 F)
Horology‎ (13 C, 169 F)
Hours meters‎ (8 F)

I

Indicators of local time‎ (7 F)

M

Mechanical resonators‎ (7 C, 4 F)

N

New Year celebrations‎ (53 C, 293 F)
NHK Clock‎ (3 F)
Nürnberger Uhr‎ (2 F)

P

Photoelectric sensors‎ (47 F)
Time in physics‎ (7 C, 2 F)

R

Ancient Roman time keeping‎ (1 C, 12 F)

S

Clocks and timekeeping exhibits in the Science Museum, London‎ (1 C, 11 F)
Time signal devices‎ (8 F)
Time signal radio stations‎ (15 C, 17 F)
Stopwatches‎ (7 C, 1 P, 95 F)
Synchronization‎ (27 C, 130 F)

T

Timepieces‎ (5 C, 17 F)
Timers‎ (10 C, 69 F)

W

Working time‎ (7 C, 70 F)

Pages in category "Timekeeping"

This category contains only the following page.

C

Circa

Media in category "Timekeeping"

The following 91 files are in this category, out of 91 total.

056-vintage-heuer-leonidas-stopwatch-microsplit-hl-820-top-view-wide-shot-with-user-guide-ikonicstopwatch-com.jpg 1,000 × 563; 127 KB
2011 08 20 CP analemmatique2.png 1,153 × 1,936; 139 KB
2013 Longines Global Champions - Lausanne - 14-09-2013 - Cellule 1.jpg 2,620 × 3,956; 10.04 MB
2013 Longines Global Champions - Lausanne - 14-09-2013 - Cellule.jpg 3,264 × 4,928; 17.25 MB
2019120304 Casio ProTrek PRW 60Y-1AER display stopwatch 2019.jpg 6,016 × 4,000; 7.76 MB
4 yugas.PNG 657 × 171; 9 KB
A Train driver Counting down at a Platform on Shōnan-Shinjuku Line.jpg 5,383 × 3,589; 23.48 MB
A Treatise on Zodiacal Signs and Constallations- Unique Jewels on the Benefits of Keeping Time WDL3204.pdf 900 × 1,312, 73 pages; 6.39 MB
Back side of disposable RFID tag used for race timing.png 256 × 171; 80 KB
Basicot.png 892 × 621; 84 KB
Begin CEST Transparent.png 250 × 250; 7 KB
Begin CEST.png 250 × 250; 5 KB
Begin CEST.svg 250 × 250; 6 KB
Begin CESTR Transparent.png 250 × 250; 5 KB
Berlin Rollt, Berlin (IF4A0037).jpg 3,734 × 4,668; 5.56 MB
Berlin Rollt, Berlin (IF4A0054).jpg 3,840 × 5,760; 5.85 MB
Biological clock human.svg 1,200 × 620; 981 KB
Bracelet Puce.jpg 5,184 × 3,456; 5.08 MB
CBS & WTOP microphones, and Stop watch, National Museum of American History.jpg 3,872 × 2,592; 2.54 MB
CET-12hr Spiral.jpg 1,280 × 1,024; 412 KB
CET-24hr-NorthPolarProjection.png 1,280 × 1,024; 405 KB
Chronometerpruefungsinstitut.jpg 340 × 153; 18 KB
Clocks; a watch-maker seated at his workbench with a long-ca Wellcome V0023855.jpg 2,888 × 2,444; 3.73 MB
Compendium on Using the Device Known as the Almucantar Quarter WDL2851.jpg 1,024 × 1,384; 88 KB
CVSup.png 738 × 398; 7 KB
DateForPoster.png 389 × 77; 18 KB
Daylight saving time begin UTC+2.png 250 × 250; 8 KB
Deliverance from Error on Knowledge of Times of Day and the Direction of Prayer WDL2855.jpg 1,024 × 1,347; 121 KB
DST begin.svg 250 × 250; 719 bytes
DST end.svg 250 × 250; 970 bytes
DT-Дополнительная-секунда.svg 579 × 471; 521 KB
EmbeddedSynchronousSignalling.png 352 × 121; 8 KB
End CEST in Israel.svg 250 × 250; 10 KB
End CEST Transparent.png 250 × 250; 9 KB
End CEST.png 250 × 250; 5 KB
End CEST.svg 250 × 250; 942 bytes
Finish-SprintforSight-Large.jpg 500 × 386; 66 KB
Gaa scoreboard smaple.jpg 599 × 337; 32 KB
Geological time spiral.png 2,424 × 2,145; 1.86 MB
GPT-4 does not know the current year - explainability, contextuality and accuracy of ChatGPT output.png 1,324 × 1,418; 326 KB
Helsingin olympialaiset 1952 - XLVIII-278 - hkm.HKMS000005-km0000mrdq.jpg 3,543 × 2,869; 1.81 MB
High-accuracy settling time measurements.pdf 1,275 × 1,650, 6 pages; 3.8 MB
HistofLeavebyCountry.png 580 × 383; 9 KB
Improvements in Atomic Clock Accuracy.jpg 1,417 × 1,029; 224 KB
IPTAtimeBox1.jpg 1,700 × 1,504; 262 KB
L Ancient-egyptian-sundial.jpg 256 × 280; 14 KB
Leap hour.svg 331 × 90; 10 KB
Locman 2006.jpg 1,329 × 1,961; 485 KB
Locman Montecristo.jpg 1,037 × 1,481; 232 KB
Locman Teseo Tesei.jpg 1,449 × 1,977; 347 KB
Maximum Benefit from the Knowledge of Circles of Projection on the 30 Degree Northern Latitude WDL2854.jpg 1,024 × 1,405; 135 KB
Measurement; a scholar making observations of a pendulum, wi Wellcome V0024586.jpg 3,025 × 2,384; 3.13 MB
Muhammad Qunawi, timekeeping by the stars.jpg 434 × 683; 104 KB
Nocturlabe Vienne IMG 8668.jpg 2,304 × 3,456; 3.98 MB
Nocturnal (instrument) - transparent.png 600 × 900; 572 KB
Nocturnal (instrument).jpg 652 × 892; 50 KB
Nürnberger Uhr.svg 2,292 × 1,421; 465 KB
Oil-lamp clock00.jpg 366 × 800; 40 KB
Olaus Magnus - On Time Measurement with Shadows.jpg 1,300 × 600; 332 KB
Palomar Observatory 2012 17.jpg 3,456 × 5,184; 4 MB
Principe-recoupement.svg 354 × 195; 5 KB
Principe-superposition.svg 354 × 195; 4 KB
RelojUniversal.JPG 2,592 × 3,872; 4.16 MB
Route 234 RT bus at Woodcote Green - geograph.org.uk - 1456389.jpg 640 × 341; 61 KB
Seasonal Almanac Based on the Coptic Calendar WDL2842.jpg 1,024 × 1,360; 109 KB
Setnakht-clepsydre.jpg 500 × 308; 32 KB
SpringFwd-FallBack.jpg 1,280 × 1,024; 1,013 KB
SpringFwd-FallBack.png 1,280 × 1,024; 544 KB
SyncMLPackages-fr.png 397 × 458; 17 KB
SyncMLPackages.png 397 × 458; 18 KB
Terminator line January.png 290 × 150; 61 KB
The Book of Remedies from Deficiencies in Setting Up Marble Sundials WDL2841.jpg 1,024 × 1,252; 121 KB
The Book of the Table Regarding the Knowledge of the Time and the Heavens for the Calculation of the Beginning of the Islamic and Christian Months WDL4294.pdf 900 × 1,233, 25 pages; 2.75 MB
The central clock of the broadcasting station in Lahti, 1935.jpg 4,824 × 6,864; 3.86 MB
The Hornblast in Ripon (cropped).jpg 235 × 356; 14 KB
The Hornblast in Ripon.jpg 409 × 640; 66 KB
The Lights of the Stars WDL4300.pdf 900 × 1,187, 782 pages; 73.65 MB
The Travelers Guide on Drawing the Circle of Projection WDL2853.jpg 1,024 × 1,288; 146 KB
Tombe-RamsèsVI-clepsydre.jpg 500 × 385; 81 KB
Treatise for Observers on Constructing the Circle of Projection WDL2849.jpg 1,024 × 1,343; 109 KB
UTC hue4map X world CET-24h-NorthPolarProjection.png 1,280 × 1,024; 246 KB
Waltham model 1899 pocket watch.jpg 4,000 × 3,000; 2 MB
White marble sculpture Chronos - stadsmuseum Lokeren.jpg 2,645 × 2,858; 845 KB
Wooden hourglass edit.jpg 1,134 × 2,454; 1.37 MB
Yıldız günü.jpg 376 × 402; 27 KB
Ytterbium Lattice Double Clock with Photons at NIST.jpg 2,400 × 1,600; 563 KB
Yugas.png 370 × 395; 6 KB
МСЭ-R TF.460-6 Рисунок 3.svg 543 × 169; 339 KB
МСЭ-R TF.460-6 Рисунок 4.svg 551 × 170; 334 KB
タイムキーパー (4025783269).jpg 1,936 × 1,296; 1.17 MB
時報用ドラとチューブラベル.jpg 3,648 × 2,056; 2.61 MB

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