wp_next_scheduled()

wp_next_scheduled( string $hook, array $args = array() ): int|false

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 string $hook       Action hook of the event.
	 * @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 );
}