Explain a 5-field cron expression, break down each cron part, and show the last plus next run times.
| Part | Value | Range | Examples | Meaning |
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Cron Explainer helps developers, schedulers, SREs, and support teams explain cron fields and show last plus next scheduled run times. Use it for crontab reviews, maintenance windows, backup schedules, recurring reports, timezone-sensitive runbooks, and incident questions about when a job should have fired.
Cron Explainer is best used when you need to translate a cron expression into plain language and inspect the previous and upcoming run times for a scheduled job.
Enter a cron expression. The tool returns an explanation of the fields and schedule plus recent and upcoming run times that can be copied into tickets, runbooks, or deployment notes.
Cron implementations differ on seconds fields, timezone handling, day-of-week numbering, names, macros, and how day-of-month interacts with day-of-week, so confirm behavior in the scheduler you deploy.
No. It explains schedule syntax and run times only; use your scheduler, logs, and monitoring system to verify whether the actual task executed successfully.