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Cron Expression Parser

Parse and explain cron expressions in plain English. Understand scheduling syntax instantly.

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选项

Field order:

┌─── minute (0-59)
│ ┌─── hour (0-23)
│ │ ┌─── day of month (1-31)
│ │ │ ┌─── month (1-12)
│ │ │ │ ┌─── day of week (0-6, Sun=0)
* * * * *

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Examples

Example 1
* * * * *
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Example 2
0 9 * * 1-5
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Example 3
30 6 1 * *
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Example 4
*/15 * * * *
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Example 5
0 0 * * 0
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FAQ

Q: What is a cron expression?

A: A string of 5 fields (minute, hour, day, month, weekday) that defines when a scheduled task runs.

Q: What does * mean?

A: * means "every" for that field — e.g., * in the minute field means every minute.

Q: What does */5 mean?

A: The slash notation means "every N units" — */5 in minutes means every 5 minutes.

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