Cron Expression Builder.
Parse any cron expression into a human-readable schedule description. Supports *, */n, ranges, and lists.
Format: minute hour day month weekday
Runs
at 09:00, on Mon
Examples
How to use
Type a cron expression in the input field (minute hour day month weekday).
The field breakdown shows each component separately.
A human-readable description appears below — use the example buttons for quick starts.
Frequently Asked Questions
What format does this tool use?
Standard 5-field Unix cron: minute (0–59), hour (0–23), day of month (1–31), month (1–12), day of week (0–7, where both 0 and 7 are Sunday).
Does it support seconds or year fields?
No. This tool uses the 5-field standard format. Some systems (AWS, Quartz) add a 6th seconds field or a 7th year field — those are not supported here.
What does */ mean?
*/N means "every N units". For example, */15 in the minute field means every 15 minutes.