Real-Time Clock (RTC) components are integrated circuits designed to keep track of the current time and date continuously, even when the main electronic system is powered off. They typically use a low-power backup battery or energy source to maintain accurate timekeeping and preserve clock data.

RTCs are commonly used in computers, embedded systems, industrial controls, security systems, automotive electronics, medical equipment, consumer devices, and data-logging applications. They are available with features such as calendar functions, alarms, programmable timing, low-power operation, battery backup, and temperature-compensated timekeeping, providing reliable and accurate time management for electronic systems.