schedule cron on every night at 9pm

Question

I have written job code on crontab.xml

<job name="vendor_out_for_delivery_notifiation" instance="Bakeway\VendorNotification\Helper\Data" method="sendPushNotificationForUpcomingOrderCron">
        <schedule>0 */21 * * </schedule>
</job>

I have given 9pm of every night but its not working entries is not going in to cron_schedule table.

I have created custom group of this cron.

<group id="vendor_notification_cron_group">


php bin/magento cron:run --group="vendor_notification_cron_group"

Please reply if you have any solution.

Answer 1

There is a star missing. Try:

<schedule>0 */21 * * *</schedule>

or better:

<schedule>0 21 * * *</schedule>