Cron Expression Explainer

Translate cron expressions to plain English online for free. Field breakdown for the classic 5-field syntax and the 6-field variant with seconds — powered by cronstrue.

Cron expression (5 or 6 fields — with seconds)

*/15 9-17 * * MON-FRI

Every 15 minutes, between 09:00 AM and 05:59 PM, Monday through Friday

minute	hour	day of month	month	day of week
`*/15`	`9-17`	`*`	`*`	`MON-FRI`

Common expressions

Build one visually with the Cron Generator, or see the actual run times in Cron Next Runs.

About Cron Expression Explainer

Paste a classic 5-field cron expression (minute hour day-of-month month day-of-week) or a 6-field one with leading seconds (Quartz/Spring style) and read what it means in plain English — powered by the cronstrue library.

The field table breaks the expression down per segment, and the preset list covers the most common schedules so you can click and adapt.