⏱️ Cron Expression Generator
Type a five-field crontab expression and get a readable description plus the next five times it will fire in your local timezone. Invalid ranges and steps are flagged, and eight presets cover the schedules you actually use.
minutehourday of monthmonthday of week
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🔒 Runs 100% in your browser. Your data never leaves your device.
How to use
- Type a cron expression, or click a preset and edit it.
- Read the plain-English description under the input.
- Check the next five run times — they use your device's timezone, not the server's.
FAQ
Which cron flavour is this?
The classic five-field crontab: minute, hour, day of month, month, day of week. Sunday is 0. Extensions such as @reboot, seconds fields or L/W/# are not supported.
What timezone are the next runs in?
Your device's timezone. Servers usually run cron in UTC — check your server before trusting these times.
Why do day-of-month and day-of-week both matter?
In real cron, if both are restricted the job runs when either matches. This tool requires both to match, which is stricter — keep one of them as * to avoid surprises.