Common Cron Expressions

Twenty-plus ready-made schedules. Click any expression to open it in the interpreter for a full breakdown.

*/30 9-17 * * 1-5
Every 30 minutes during work hours, Mon–Fri
工作日 9–17 点每 30 分钟
Open in interpreter →
0 0 1 1,4,7,10 *
Quarterly — 1st of Jan, Apr, Jul, Oct at midnight
每季度首日 00:00
Open in interpreter →

How to use these examples

This library covers the schedules people reach for most often in Linux crontabs, Kubernetes CronJobs, and CI pipelines: fast repeating jobs (every minute, every five or fifteen minutes), hourly and daily maintenance, business-hours rules, weekday-only backups, and monthly or quarterly reports.

Every card shows the raw expression plus a short description in English and Chinese. Click the “Open in interpreter” link and the expression is passed to the main tool as a URL parameter, where you get the full five-field breakdown, a complete natural-language explanation, and the next five execution times in your local timezone. From there you can copy the expression directly into your own configuration.

If a schedule is close but not exactly what you need — say you want every ten minutes only between 8 AM and 6 PM — click through and switch to the Generate tab to tweak each field visually. For the underlying rules that make these expressions work, see the syntax reference, which explains *, commas, ranges, and steps, and the day-of-month versus day-of-week OR behavior.