Cron Expression Parser
Parse a five-field Cronie cron expression, understand its fields, and preview the next five calendar matches in your browser time zone and UTC. No upload.
Cronie five-field syntax only. Your schedule stays in this browser; preview times use your browser timezone. Updates as you type. Maximum 256 characters.
Try a common schedule
Syntax reference and supported scope
- Minute
- 0–59
- Hour
- 0–23
- Day of month
- 1–31
- Month
- 1–12 / JAN–DEC
- Day of week
- 0–7 / SUN–SAT
* any value; , list; - ascending range; / step (*/n or a-b/n). Sunday is 0 or 7; names are case-insensitive.
Five time fields only. No seconds, year, commands, @ nicknames, or ? L W # ~.
Enter five time fields or try a sample. Your preview appears here.
How to use this tool
Enter five Cronie time fields. Results update automatically. Compare calendar matches with the host timezone and read the day-field and DST guide before deployment.
When not to use it
Not a daemon simulator, monitoring service, or proof that a job will run. Other schedulers may use different dialects and DST rules; verify their own documentation.
Read the guide →