perl-Schedule-Cron-Events-1.96-18.fc45.src.rpm

Given a line from a crontab, tells you the time at which cron will next run the line, or when the last event occurred, relative to any date you choose. The object keeps that reference date internally, and updates it when you call nextEvent() or previousEvent() - such that successive calls will give you a sequence of events going forward, or backwards, in time.