Automation reference
Cron Explainer
Paste or pick a cron schedule before shipping a background job:
This is the Every 5 minutes.
Runs once every five minutes.
Useful for polling, queue checks, cache warming, and lightweight sync jobs.
Make the job idempotent because retries and overlapping runs can happen in real systems.
Working example
*/5 * * * *Production note: Avoid heavy jobs at very frequent intervals unless you have locking and monitoring.
Before shipping this schedule
- Document timezone, owner, expected runtime, retry behavior, and where logs live.
- Add locking or idempotency before frequent jobs can overlap.
- Create an alert path for silent failures, especially monthly or billing-related jobs.
Common mistakes
- Assuming the server timezone matches the user's timezone.
- Running a destructive job without a dry-run or replay plan.
- Scheduling frequent polling without rate-limit, timeout, or concurrency protection.
Minute
*/5
Hour
*
Day of month
*
Month
*
Day of week
*
Direct answer
A readable cron helper for scheduled jobs, workflow automations, reminders, background tasks, and production handoff checks.
What this tool solves
Review a schedule before shipping a background job or handing an automation to another team.
Input and output
- Input: A common cron expression or scheduling intent
- Output: Readable schedule, example expression, and operating caveats
- Privacy: Runs entirely in the browser
Best used for
- Checking scheduled jobs before adding them to Vercel Cron, GitHub Actions, n8n, or a server worker.
- Documenting handoff notes for reports, reminders, cleanup jobs, and sync automations.
- Spotting missing production controls such as locks, retry rules, timezone notes, and alerts.
Do not use it blindly when
- You need Quartz cron with seconds, year fields, or platform-specific syntax.
- The schedule controls high-risk financial, medical, or compliance work without human review.
Pre-publish checklist
- Document the timezone, owner, expected runtime, and retry behavior.
- Make the job idempotent before adding frequent schedules.
- Add logs and alerts so a silent monthly failure does not stay hidden.
Example searches
Useful starting inputs include: */5 * * * *, 0 9 * * 1-5, 0 0 * * *, 0 8 1 * *.
Production use
Use the result as a decision aid, then verify it in the real product context. Browser support, API contracts, validation behavior, timezones, accessibility, monitoring, and handoff documentation can still change the right implementation.