RTC (Real-Time Clock) Modules are used to keep accurate time in electronic systems, even when powered off. These modules are essential in applications such as data logging, scheduling, and time-based automation. RTC modules provide precise timekeeping for systems that need to track real-world time or record timestamps.

With backup batteries to maintain time even during power outages, RTC modules are crucial for systems that require continuous time tracking, such as alarm systems, smart home devices, and embedded systems. For developers working on time-sensitive applications, these modules provide reliable and consistent timekeeping.