Cron Expression Parser

繁中
Minute0-59
Hour0-23
Day1-31
Month1-12
Weekday0-7

Common Presets

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Next 10 Execution Times

    Visual Editor

    Human Readable

    Converts Cron expressions to natural language descriptions instantly.

    Execution Preview

    Shows next 10 execution times to verify your schedule is correct.

    Visual Editor

    Build Cron expressions with dropdowns — no syntax memorization needed.

    Common Presets

    Built-in popular schedule patterns for one-click application.

    100% Private

    All parsing happens locally in your browser. No data uploaded to any server.

    Completely Free

    No registration, no limits. Free to use forever.

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    Frequently Asked Questions

    What is a Cron expression?
    A Cron expression defines a schedule for recurring tasks using 5 fields: minute, hour, day of month, month, and day of week. It is commonly used in Linux crontab and various scheduling systems.
    What does * mean in Cron?
    The asterisk (*) means "every." For example, * in the minute field means every minute, and * in the hour field means every hour.
    What does */5 mean?
    */5 means "every 5 units." For example, */5 in the minute field means every 5 minutes (0, 5, 10, 15...).
    What is the difference between 0 and 7 in the weekday field?
    In most systems, both 0 and 7 represent Sunday. 1-6 represent Monday through Saturday.
    Does it support 6-field Cron expressions?
    This tool supports only five fields (minute, hour, day, month, weekday). Seconds and six-field expressions are not supported.
    How do I check the next runs of a cron expression?

    Enter a five-field cron expression in the order minute, hour, day of month, month and day of week. Use valid ranges and positive step values; a zero step is not supported.

    Which cron schedule format does this parser use?

    It uses the standard five-field form. Syntax with seconds, a year field or scheduler-specific extensions should be checked in the documentation for your actual scheduler.