wp-includes/cron.php:832Retrieves the timestamp of the next scheduled event for the given hook.
$hookstring$argsarrayoptionalarray()int|falseOne hook fires while wp_next_scheduled() runs, in this order:
Filters the timestamp of the next scheduled event for the given hook.
function wp_next_scheduled( $hook, $args = array() ) { $next_event = wp_get_scheduled_event( $hook, $args ); if ( ! $next_event ) { return false; } /** * Filters the timestamp of the next scheduled event for the given hook. * * @since 6.8.0 * * @param int $timestamp Unix timestamp (UTC) for when to next run the event. * @param object $next_event { * An object containing an event's data. * * @type string $hook Action hook of the event. * @type int $timestamp Unix timestamp (UTC) for when to next run the event. * @type string $schedule How often the event should subsequently recur. * @type array $args Array containing each separate argument to pass to the hook * callback function. * @type int $interval Optional. The interval time in seconds for the schedule. Only * present for recurring events. * } * @param array $args Array containing each separate argument to pass to the hook * callback function. */ return apply_filters( 'wp_next_scheduled', $next_event->timestamp, $next_event, $hook, $args );}Introduced in 2.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/cron.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.