DEVELOPER TOOL
Cron Expression Explainer
Turn a cron schedule expression into a plain-English description.
Standard 5-field format: minute hour day-of-month month day-of-week
In plain English
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About this tool
Paste a standard 5-field cron expression to see what schedule it describes in plain English — no more counting asterisks and commas by hand. Covers the most common patterns: wildcards, step values, ranges, and lists.
Frequently asked questions
- What are the five fields?
- In order: minute (0–59), hour (0–23), day of month (1–31), month (1–12), and day of week (0–6, where 0 is Sunday).
- Does this calculate the next run time?
- No — this describes the schedule in words rather than computing upcoming run times, since that also depends on the server's time zone and current time.
- What does "*/15" mean?
- A step value — "every 15 units" starting from the field's minimum. In the minute field, */15 means the job runs at :00, :15, :30, and :45 of every hour.