Cron Expression
Build + explain cron schedules
0–59
0–23
1–31
1–12
0–6 (Sun=0)
About Cron Expression
A cron expression parser explains what a cron schedule means in plain English and shows the next N scheduled runs. Useful when you inherit a crontab and need to figure out what those obscure asterisks actually do.
Frequently asked questions
Standard 5-field: minute, hour, day-of-month, month, day-of-week. Some systems add a 6th (seconds) or 7th (year) field.
0 0 * * *: daily midnight. */15 * * * *: every 15 minutes. 0 9 * * 1-5: 9am weekdays. The tool covers these and more in its cheat-sheet.
Cron uses the server's local timezone by default. Specify timezone explicitly in modern systems (Quartz, systemd) to avoid DST surprises.
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Cron Expression
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