How to Run cron job Every 12 Hours (Twice a day)

This example cron job snippet runs at 12am (00:00:00) and 12pm (12:00:00) daily:

0    */12   *    *    *      your_script.sh

The */12 portion executes cron exactly at 12am and 12pm.

What about a custom time like 6am and 11pm? Set hours like 06,23 (24 hours). Example here:

0    06,23   *    *    *      your_script.sh

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