Cron Expression Tester

Decode cron expressions, preview the exact windows they trigger, and validate schedules without touching production servers. Timezone controls ensure every preview matches the environment you care about.

Docs

Quick samples

Cron parameters

Set the expression, timezone, and reference moment to preview upcoming matches.

Spacing matters: cron expressions expect five fields (minute hour day-of-month month day-of-week). Shortcuts like @hourly are also supported.

Field breakdown

Every cron field explained with inline descriptions for ranges, steps, and lists.

Minutes

*/5

Every 5 minute

Hours

*

Every hour

Day of month

*

Every day of the month

Month

*

All months

Day of week

*

Every day of the week

Next runs

Upcoming matches rendered with ISO strings and copy helpers for runbooks.

Run 1

Saturday, April 18, 2026 · 13:45 GMT+0000

Run 2

Saturday, April 18, 2026 · 13:50 GMT+0000

Run 3

Saturday, April 18, 2026 · 13:55 GMT+0000

Run 4

Saturday, April 18, 2026 · 14:00 GMT+0000

Run 5

Saturday, April 18, 2026 · 14:05 GMT+0000