Cron Expression for Every 15 Minutes
*/15 * * * *→Runs every 15 minutes, 4 times per hourQuick Examples
How It Works
*/15 * * * * triggers at minutes 0, 15, 30, and 45 of every hour — exactly 4 times per hour, 96 times per day. This quarter-hour interval is a sweet spot for many operational tasks that don't need real-time speed but still require timely execution.Common Use Cases
- 1Generating and caching reports
- 2Checking for new deployments or config changes
- 3Social media posting schedule checks
Linux Crontab Example
*/15 * * * * /usr/local/bin/generate-report.shAdd this line to your crontab with crontab -e
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More Every X Minutes
Runs every minute, 60 times per hour
* * * * *
Runs every 2 minutes, 30 times per hour
*/2 * * * *
Runs every 5 minutes, 12 times per hour
*/5 * * * *
Runs every 10 minutes, 6 times per hour
*/10 * * * *
Runs every 30 minutes, twice per hour
*/30 * * * *
Runs every 3 minutes
*/3 * * * *
Runs every 4 minutes
*/4 * * * *
Runs every 6 minutes
*/6 * * * *
Runs every 7 minutes
*/7 * * * *
Runs every 8 minutes
*/8 * * * *
Runs every 12 minutes
*/12 * * * *
Runs every 20 minutes
*/20 * * * *
Runs every 25 minutes
*/25 * * * *
Runs every 45 minutes
*/45 * * * *
Runs every 50 minutes
*/50 * * * *
Runs every 9 minutes
*/9 * * * *
Runs every 11 minutes
*/11 * * * *
Runs every 35 minutes
*/35 * * * *
Runs every 40 minutes
*/40 * * * *
Runs every 55 minutes
*/55 * * * *