A Clock is a device used to keep, measure and indicate time. Clocks are said to be one of the oldest inventions of the human being, meeting a dire need to measure intervals of time shorter than the natural units like the day or the lunar month or the period of the entire year. Devices working on various physical processes have been used over a very long time. Some of the predecessors of the modern clock were often based on the movement of nature and were also termed as clocks. The one which shows time by representing the shadow of the sun on a flat surface is called a sundial. In order to measure the duration time, instruments like hourglass have been used. There are also water clocks which are considered to be one of the oldest time measuring devices. The major advancement came into the manufacturing system of clocks after the invention of verge escapement, which made possible the production of the first mechanical clock in 1300s in Europe. It used to keep time with oscillating timekeepers like balance wheels.
In horology, traditionally the clocks which did not strike hourly with some sound were known to be a timepiece and the one which produce the strike sound was called a clock.
In this sub category you can download free PNG images: Clock Objects. In this category "Clock" we have 159 free PNG images with transparent background.
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Alarm Clock Png Image
Format: PNG
Resolution: 1616x2223
Size: 1.2MB
Downloads: 450
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Clock Free Download Png
Format: PNG
Resolution: 1600x1597
Size: 1.2MB
Downloads: 435
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Clock Png Image
Format: PNG
Resolution: 1399x1398
Size: 976.3KB
Downloads: 403
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Clock Png Image
Format: PNG
Resolution: 2842x2688
Size: 2.2MB
Downloads: 481
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Stopwatch In Hand Png Image
Format: PNG
Resolution: 1636x3194
Size: 2.0MB
Downloads: 518
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Wristwatch Png Image
Format: PNG
Resolution: 1000x1000
Size: 282.7KB
Downloads: 673
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Wristwatch Png Image
Format: PNG
Resolution: 643x1070
Size: 279.2KB
Downloads: 463
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Wristwatch Png Image
Format: PNG
Resolution: 2008x3034
Size: 2.3MB
Downloads: 450
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Stopwatch In Hand Png Image
Format: PNG
Resolution: 1969x1101
Size: 562.0KB
Downloads: 338
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Alarm Clock
Format: PNG
Resolution: 555x785
Size: 152.5KB
Downloads: 337
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Wall Alarm Black Clock Download HQ
Format: PNG
Resolution: 1920x1080
Size: 467.2KB
Downloads: 89
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Clock Png Image
Format: PNG
Resolution: 1915x1914
Size: 528.7KB
Downloads: 433
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Wall Green Office Clock Download HQ
Format: PNG
Resolution: 512x512
Size: 326.5KB
Downloads: 60
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Clock Png Image
Format: PNG
Resolution: 1204x1526
Size: 443.8KB
Downloads: 449
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Alarm Clock Png Image
Format: PNG
Resolution: 1457x2120
Size: 1.3MB
Downloads: 437
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Wall Clock Png Image
Format: PNG
Resolution: 1775x1780
Size: 1.1MB
Downloads: 1,257
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Wristwatch Png Image
Format: PNG
Resolution: 800x1000
Size: 230.5KB
Downloads: 839
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Clock Download Png
Format: PNG
Resolution: 1024x1201
Size: 798.5KB
Downloads: 424
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Digital Clock
Format: PNG
Resolution: 600x226
Size: 16.2KB
Downloads: 327
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Clock Png Image
Format: PNG
Resolution: 396x772
Size: 139.8KB
Downloads: 376
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