Cron Expression Parser
Parse, validate and visualise cron job schedules with next run times.
Enter a cron expression (like */15 9-17 * * 1-5) and see a human-readable description, field-by-field breakdown, and the next scheduled run times. Supports standard 5-field cron syntax including ranges, steps, wildcards and common presets.
Privacy: Processing happens entirely in your browser.
Related tools
Frequently asked questions
What are the 5 fields?
From left to right: minute (0-59), hour (0-23), day of month (1-31), month (1-12), day of week (0-6, where 0=Sunday).
What does */5 mean?
The / prefix means "every Nth unit". */5 in the minute field means "every 5 minutes".