Cron Expression Parser

How to Read a Cron Expression

Cron is the standard scheduler on Linux/Unix systems. A cron expression is five fields that define when a job runs — like 0 9 * * 1 meaning "every Monday at 9 AM." CI/CD pipelines, cloud schedulers (Cloud Scheduler, Lambda cron triggers), and task runners all use this format. The problem is that expressions like */15 8-17 * * 1-5 aren't exactly intuitive, which is why a translator helps.

The Five Fields