Every Hour Cron Expression for Cloud Scheduler
0 * * * *Try it live
Valid
MINMinute
0HRHour
9DOMDay of Month
*MONMonth
*DOWDay of Week
1-5In 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- 1Mon, May 18, 09:00 AM UTCin 3d
- 2Tue, May 19, 09:00 AM UTCin 4d
- 3Wed, May 20, 09:00 AM UTCin 5d
- 4Thu, May 21, 09:00 AM UTCin 6d
- 5Fri, May 22, 09:00 AM UTCin 7d
- 6Mon, May 25, 09:00 AM UTCin 10d
- 7Tue, May 26, 09:00 AM UTCin 11d
- 8Wed, May 27, 09:00 AM UTCin 12d
- 9Thu, May 28, 09:00 AM UTCin 13d
- 10Fri, May 29, 09:00 AM UTCin 14d
crontab entrybash
# Add to crontab with: crontab -e
0 9 * * 1-5 /path/to/your/script.shWhen to use this schedule
- ▸ Hourly database index maintenance or VACUUM jobs in PostgreSQL
- ▸ Rotating API keys or refreshing OAuth tokens that expire after 1-2 hours
- ▸ Sending hourly system health summaries to a Slack channel
- ▸ Processing a batch of queued uploads or transformations once per hour
- ▸ Hourly price feed updates for e-commerce catalogs or financial instruments
Platform Syntax Comparison
The same "Every Hour" schedule expressed in every major platform's cron syntax.
| Platform | Expression |
|---|---|
| Standard Linux/Unix | 0 * * * * |
| GitHub Actions | 0 * * * * |
| Google Cloud Scheduler | 0 * * * * |
| Kubernetes CronJob | @hourly |
| Azure Functions (NCRONTAB) | 0 0 * * * * |
| AWS EventBridge | 0 * * * ? * |
| Quartz Scheduler | 0 0 * * * ? |
| Spring @Scheduled | 0 0 * * * * |
| Jenkins | H * * * * |
| Apache Airflow | @hourly |
Frequently Asked Questions
Why "0 * * * *" and not "* * * * *" for every hour? ▾
"* * * * *" runs every minute. "0 * * * *" runs at minute 0 of every hour — once per hour. The first field is the minute.
Can I use @hourly instead? ▾
Yes — @hourly is equivalent to "0 * * * *" and is supported by standard cron, Kubernetes, and Airflow. GitHub Actions supports it too.