Cron Expression Açıklayıcı
Paste a cron expression and understand exactly what it does.
Common Examples
How to Read Cron Expressions
A standard cron expression has 5 fields separated by spaces:
minute hour day month weekday
* · any value */n · every n units 1,5 · at 1 and 5 1-5 · range 1 through 5
Ranges: minute (0-59), hour (0-23), day (1-31), month (1-12), weekday (0-6, 0 = Sunday)
How It Works
- Enter a cron expression: Paste any 5-field or 6-field cron string like
0 9 * * 1-5. - Read the plain-English explanation: The tool immediately shows a human-readable description of when the job runs.
- See next run times: A list of the next 5–10 scheduled execution times is shown based on the current date and time.
- Validate: Invalid expressions are highlighted with specific error messages explaining what went wrong.
Why Use Cron Explainer?
Cron syntax is compact but cryptic — 0 3 * * 0 means "every Sunday at 3 AM" but only after you've learned the field order (minute, hour, day, month, weekday). Reading unfamiliar cron expressions in infrastructure configs or CI/CD pipelines slows down debugging. This tool instantly translates any valid cron expression to a plain sentence, validates the expression, shows upcoming run times so you can verify the schedule is what you intended, and explains each field value individually. It supports standard 5-field syntax, non-standard 6-field (with seconds), and special strings like @daily and @hourly.
Field Reference
- Field 1 — minute (0–59)
- Field 2 — hour (0–23)
- Field 3 — day of month (1–31)
- Field 4 — month (1–12 or JAN–DEC)
- Field 5 — day of week (0–7 or SUN–SAT)