Cron Job Generator

What is valid syntax?

Cron expressions consist of five fields separated by spaces: Minute Hour Day Month Weekday. Standard syntax allows for:

• * (Asterisk): Matches any value (e.g., every minute).
• , (Comma): Separates a list of values (e.g., 1,3,5).
• - (Dash): Defines a range of values (e.g., 1-5).
• / (Slash): Specifies increments (e.g., */15 for every 15 minutes).

Server Time Considerations

When scheduling cron jobs, always remember that they run based on the server's system time. Ensure you know the timezone of your server (often UTC) to prevent jobs running at unexpected hours locally.

Common Mistakes

A common error is confusing the "Day of Month" and "Day of Week" fields. It is generally recommended to avoid setting both simultaneously unless you specifically need the job to run only when both conditions are true.