Cron (Time-Based Scheduling)

A time-based job scheduling concept originating from Unix systems, where tasks are defined to run at specific intervals using cron expressions (e.g., '0 */6 * * *' for every 6 hours). In blockchain contexts, cron-like scheduling is used to trigger on-chain operations such as reward distributions, oracle updates, and automated rebalancing at regular intervals, typically implemented through off-chain keeper services or on-chain automation protocols.