Cron Expression Builder & Explainer
Build standard 5-field cron expressions, see a human-readable explanation and preview the next run times in your local timezone. Nothing is sent to any server.
Cron fields
Cron expression
Format: minute hour day-of-month month day-of-week
Explanation
every minute, of every hour, every day
Next run times (local)
- Could not calculate upcoming runs.
*), ranges (1-5), lists (0,6) and simple intervals (*/5) for the patterns generated by the builder.Why a cron builder is useful
Cron expressions are powerful but easy to mis-type. A single wrong field can make your job run far too often or never at all. This builder helps you configure schedules with simple controls and immediately shows a plain-English explanation plus the next few run times, so you can be confident that the expression does what you expect.
Backend developers, DevOps engineers and SREs can use this tool when configuring Kubernetes CronJob resources, Spring Boot@Scheduled tasks, CI pipelines or any other cron-based scheduler.