When we have a requirement where we need to run a task/job repeatedly after a particular time interval, we achieve this functionality by implementing Scheduling. For Java developers, Spring Framework makes it simple by offering Spring Scheduler. Moreover, Cron Expressions are the most widely used approach to achieve scheduling. Cron Expressions are very popular in Unix/Linux OS for scheduling. Spring framework also incorporates the same concept internally. Spring Framework offers us an API where we can utilize Cron expression to get the task scheduled. This article about 'Spring Scheduling Cron Expression' includes all the new improvements in Cron Expressions in Spring 5.3. However, there are some other approaches to get our task scheduled using Spring/Spring Boot, but here in this article