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Every 15 Minutes Cron Expression — */15 * * * *

Cron Expression

*/15 * * * *

What it means

Runs every 15 minutes

A common interval for reporting dashboards, webhook retry queues, and log flushing. Runs at :00, :15, :30, and :45 past every hour.

Next 8 Scheduled Runs (UTC)

  1. 1.Mon, 13 Jul 2026 15:30:00 GMT
  2. 2.Mon, 13 Jul 2026 15:45:00 GMT
  3. 3.Mon, 13 Jul 2026 16:00:00 GMT
  4. 4.Mon, 13 Jul 2026 16:15:00 GMT
  5. 5.Mon, 13 Jul 2026 16:30:00 GMT
  6. 6.Mon, 13 Jul 2026 16:45:00 GMT
  7. 7.Mon, 13 Jul 2026 17:00:00 GMT
  8. 8.Mon, 13 Jul 2026 17:15:00 GMT

Platform Snippets

GitHub Actions

- cron: '*/15 * * * *'

Kubernetes CronJob

schedule: "*/15 * * * *"

AWS EventBridge

cron(*/15 * * * ? *)

AWS uses a 6-field format with year and requires either DOM or DOW to be ?.

systemd Timer

[Timer]
OnCalendar=*-*-* *:*/15:00
Persistent=true

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FAQ

What does the cron expression */15 * * * * mean?

Runs every 15 minutes. A common interval for reporting dashboards, webhook retry queues, and log flushing. Runs at :00, :15, :30, and :45 past every hour.

How do I use */15 * * * * in GitHub Actions?

Add a schedule trigger under the "on" key in your workflow YAML: on: schedule: - cron: '*/15 * * * *'. This will run your workflow runs every 15 minutes. Note that GitHub Actions uses UTC time.

Is the cron expression */15 * * * * valid for Kubernetes CronJobs?

Yes. Set the schedule field in your CronJob spec to "*/15 * * * *". Kubernetes CronJobs use standard 5-field cron syntax and run in UTC by default unless you configure a timeZone field.

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