Cron builder
Build a cron schedule from dropdowns or paste an expression — plain English explanation plus the next five run times in your timezone.
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Presets
Fields
Built expression:
Expression
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Explanation
Next 5 runs (local)
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About this tool
Cron uses five fields: minute, hour, day of month, month, and day of week. When both day-of-month and day-of-week are restricted, most implementations (including crontab) fire if either matches.
Next-run times are computed in your browser — no server round trip. Cloudflare cron triggers and GitHub Actions use similar but not identical dialects; always check your platform's docs.
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