The name of the device used to measure time is a "clock." Clocks come in various forms, from traditional analog designs with hour and minute hands to digital displays showing numbers. They can be mechanical, using gears and springs, or electronic, utilizing circuit boards and LED displays. Some clocks, such as sundials, rely on the position of the sun, while others are atomic, providing unparalleled accuracy based on electromagnetic radiation. Clocks are not only essential for daily life, aiding in scheduling and time management, but they also play a crucial role in scientific research and navigation.