Cron Expression Generator & Explainer
Validate, explain, and construct standard 5-field cron expressions with human-readable descriptions and upcoming run dates.
Upcoming 5 Executions Schedule
Mastering Standard 5-Field Cron Expressions
Clear rules, special characters, and field positioning in Linux & Unix crontabs.
The 5 Standard Fields
Standard Linux cron uses 5 space-separated positions: Minute (0-59), Hour (0-23), Day of Month (1-31), Month (1-12), and Day of Week (0-7, where both 0 and 7 indicate Sunday).
Ranges, Lists & Steps
Use asterisks (*) for every unit, commas (,) for lists like 1,15, hyphens (-) for continuous ranges like 1-5, and forward slashes (/) for intervals like */15 (every 15 minutes).
Upcoming Run Verification
Never guess when your automated server cron job will trigger. PicoFix simulates cron schedules and calculates the next 5 exact timestamps in both your local time and UTC.
Cron Expression FAQs
Helpful answers to common image compression questions.
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