What is CroneTrigger in Salesforce?

CornTrigger: It is an object in salesforce which contains schedule information for a scheduled job. It holds the CronExpression, NextFireTime, LastFireTime, StartTime, End Time, status, etc. It is used to query scheduled jobs in your organization.

Example:-

List<CronTrigger> jobs = [Select Id, State, NextFireTime From CronTrigger];
for(CronTrigger job : jobs)
{
System.debug(job);
}

.