AI Cron Expression Generator
Last updated: June 2026 · Free · No sign-up required
Enter your requirement on the left to generate or explain the schedule.
How to Translate Cron Schedules
Managing server tasks and background jobs has never been easier:
- Natural Language to Cron: Type your desired schedule in plain English, such as “Every 15 minutes on weekdays,” and the AI will generate the exact 5-part cron syntax (e.g.,
*/15 * * * 1-5). - Cron to Natural Language: Paste an existing cron expression like
0 0 * * 0, and the AI will explain that it means “At 00:00 on Sunday.”
Why Use an AI Cron Builder?
A single mistake in a cron expression can cause critical background jobs to run at the wrong time—or not at all. Our AI ensures accuracy, preventing server overloads and missed backups. It eliminates the need to look up documentation or guess what the asterisk and slash combinations mean.
Quick reference
| Field | Range | Meaning |
|---|---|---|
| 1st | 0–59 | minute |
| 2nd | 0–23 | hour |
| 3rd | 1–31 | day of month |
| 4th | 1–12 | month |
| 5th | 0–6 | day of week |
Interpretation guide
| Plain English | Cron expression |
|---|---|
| Every minute | * * * * * |
| Every day at midnight | 0 0 * * * |
| Every weekday at 9am | 0 9 * * 1-5 |
| Every 15 minutes | */15 * * * * |
Formula & methodology
Formula: Cron = minute hour day-of-month month day-of-week (5 space-separated fields)
A cron expression has five fields that define when a scheduled job runs. The AI maps your plain-English schedule onto those fields.
- Describe the schedule in words (e.g. “every Sunday at 2am”).
- The AI fills the five cron fields: minute, hour, day-of-month, month, day-of-week.
- Review the human-readable summary it returns.
- Paste the expression into crontab, CI, or your scheduler.
Worked example: “Every weekday at 9am” becomes 0 9 * * 1-5.