Network & DevOps ToolkitCron Expression Builder
Build a cron schedule and read it back in plain English.
Pick a preset or edit the five fields; the expression and a human-readable description update live.
Loading…
What do the five cron fields mean?
Minute, hour, day-of-month, month and day-of-week, in that order. An asterisk means 'every', and you can use lists (1,15), ranges (1-5) and steps (*/5).
How do I run a job every 5 minutes?
Use */5 * * * *. The builder includes presets for common intervals so you don't have to memorize the syntax.
What timezone does cron use?
Classic cron uses the server's local time. Always confirm the host timezone (or use UTC) so jobs fire when you expect.
Related tools
- Unix Timestamp Converter — reason about when jobs last ran.
- Time Unit Converter — convert intervals between seconds, minutes and hours.
🔐 Private by design: every tool runs in your browser. DNS lookups go straight to Cloudflare's DoH resolver (1.1.1.1); nothing else is sent to any server, and nothing is logged.