Cron Expression Generator

Build and explain cron expressions with presets and a live human-readable description.

Meaning: Runs at 09:00, on weekday(s) 1-5.

Common presets

Format

minute hour day-of-month month day-of-week

Fields: 0-59 · 0-23 · 1-31 · 1-12 · 0-6 (Sun-Sat). Use * for any, */n for step, a-b for range, a,b for list.

Runs entirely in your browser — nothing you paste is sent to a server.

About this tool

Write cron expressions with confidence. Pick a preset or type one manually and get an English description of exactly when it will fire — before you commit it to a scheduler.

How it works

  1. Type an expression or click a preset.
  2. Read the plain-English description below.
  3. Copy the expression into n8n, GitHub Actions, pg_cron, or crontab.

When to use it

  • Scheduling an n8n or Make.com workflow.
  • Setting up a pg_cron job on Supabase or Neon.
  • Configuring a GitHub Actions workflow trigger.

FAQs

Related resources