A device that supplies a reproducible measure of elapsed time. An ideal relativistic clock measures proper time along its world line; the clock hypothesis separates this geometric ideal from disturbances of a particular physical mechanism.
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A clock is a device used to measure and display time. It indicates the passage of hours, minutes, and seconds, allowing individuals to coordinate activities, plan schedules, and maintain a sense of temporal awareness. There are various types of clocks, including: 1. **Analog Clocks**: These display time using a dial with hour and minute hands that rotate around a numbered face. 2. **Digital Clocks**: These show time using numerical digits, often with LED or LCD displays.
