Generate cron expressions for scheduling recurring tasks and jobs.
* * * * *
│ │ │ │ │
│ │ │ │ └─── Day of Week (0-7)
│ │ │ └───── Month (1-12)
│ │ └─────── Day of Month (1-31)
│ └───────── Hour (0-23)
└─────────── Minute (0-59)