Cron Expression Builder
Pick a preset or type any cron expression — see what it means in plain language, instantly.
Cron field order
A cron expression has 5 fields: minute hour day-of-month month day-of-week. * means "every", */N means "every N", 1-5 is a range, 1,3,5 is a list. Days of week: 0 or 7 = Sunday.
Does this run anywhere?
No — it only builds and explains the expression. Paste it into crontab, GitHub Actions, Cloud Scheduler or any scheduler that accepts standard 5-field cron.