Cron explainer

GitHub Actions and Kubernetes CronJobs use UTC unless the job sets a time zone. A CRON_TZ= prefix sets it here too.

Next runs

    Cron syntax
    FieldValues
    Minute0-59
    Hour0-23
    Day of month1-31, L for the last day
    Month1-12 or JAN-DEC
    Day of week0-7 (0 and 7 are Sunday) or SUN-SAT

    * any value, , list, - range, / step. A sixth field at the start adds seconds. When both day of month and day of week are set, either one matching is enough, as in standard cron.