Every 15 Minutes Cron Expression for Cloud Scheduler

*/15 * * * *

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Valid
MINMinute
0
HRHour
9
DOMDay of Month
*
MONMonth
*
DOWDay of Week
1-5

In plain English

At 09:00 AM, Monday through Friday

English → Cron

Try: "every 5 minutes", "every weekday at 9am", "every Monday at 3pm", "every month on the 1st"

Next 10 Executions

UTC
  1. 1Mon, May 18, 09:00 AM UTCin 3d
  2. 2Tue, May 19, 09:00 AM UTCin 4d
  3. 3Wed, May 20, 09:00 AM UTCin 5d
  4. 4Thu, May 21, 09:00 AM UTCin 6d
  5. 5Fri, May 22, 09:00 AM UTCin 7d
  6. 6Mon, May 25, 09:00 AM UTCin 10d
  7. 7Tue, May 26, 09:00 AM UTCin 11d
  8. 8Wed, May 27, 09:00 AM UTCin 12d
  9. 9Thu, May 28, 09:00 AM UTCin 13d
  10. 10Fri, May 29, 09:00 AM UTCin 14d
crontab entrybash
# Add to crontab with: crontab -e
0 9 * * 1-5    /path/to/your/script.sh

When to use this schedule

  • Report generation for dashboards that update every quarter-hour
  • Queue health checks for message brokers to detect backlog buildup
  • Flushing analytics event buffers to a data warehouse in 15-minute batches
  • Rotating log files or archiving completed tasks on a quarter-hour cadence

Platform Syntax Comparison

The same "Every 15 Minutes" schedule expressed in every major platform's cron syntax.

PlatformExpression
Standard Linux/Unix
*/15 * * * *
GitHub Actions
*/15 * * * *
Google Cloud Scheduler
*/15 * * * *
Kubernetes CronJob
*/15 * * * *
Azure Functions (NCRONTAB)
0 */15 * * * *
AWS EventBridge
0/15 * * * ? *
Quartz Scheduler
0 */15 * * * ?
Spring @Scheduled
0 */15 * * * *
Jenkins
H/15 * * * *
Apache Airflow
*/15 * * * *

Frequently Asked Questions

What are the exact run times for */15?
"*/15" fires at :00, :15, :30, and :45 of every hour — four times per hour, on quarter-hour boundaries.

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