Cron expression for weekdays at 9am

This is arguably the most useful combined cron pattern. It fires at 9 AM on working days only, which maps perfectly to business processes that don't need to run on weekends.

Standup reminders, daily sales reports, overnight deployment summaries, CI/CD pipeline status digests, and "what happened while you were away" email roundups all commonly use this schedule.

Note that this schedule doesn't account for public holidays. If you need to skip bank holidays, you'll need application-level logic — check the date against a holiday calendar before executing.