Developer

Cron Explainer

Read a cron expression in plain English and see exactly when it fires next, in your own time zone.

Expression

30

minute

8

hour

*

day of month

*

month

1-5

day of week

At 08:30, on weekdays

Next runs

UTC

  • 1Mon, Aug 17, 08:30 AMin 56 minutes
  • 2Tue, Aug 18, 08:30 AMin 1 day
  • 3Wed, Aug 19, 08:30 AMin 2 days
  • 4Thu, Aug 20, 08:30 AMin 3 days
  • 5Fri, Aug 21, 08:30 AMin 4 days
  • 6Mon, Aug 24, 08:30 AMin 1 week
  • 7Tue, Aug 25, 08:30 AMin 1 week
  • 8Wed, Aug 26, 08:30 AMin 1 week

Syntax

SyntaxMeaning
*Every value
5That exact value
1-5A range, inclusive
*/15Every 15th value, starting at the lowest
1,15,30A list of values
9-17/2Every 2nd value inside a range
mon-friNames work for weekdays and months
@dailyShorthand for 0 0 * * *
When both day-of-month and day-of-week are restricted, cron runs on days matching either one — a classic source of surprise schedules.
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