WordPress - Get the next 12 am timestamp (sheduled actions etc.)

controller-helpers.php

<?php
/**
 * Do not allow direct access
 *
 * @since 1.0
 */
if ( ! defined( 'ABSPATH' ) ) die( 'Nothing to find Ma\'am..' );

/**
 * Your Plugin Name - Controller Helpers
 *
 * @since 1.0
 */
if ( ! class_exists( 'controllerHelpers' ) )
{

    final class controllerHelpers
    {

        /**
         * Get the next 12:00 am timestamp
         *
         * @since 1.0
         */
        public function twelveTimestamp()
        {

            $time = time();

            $hour = (int) date( 'H', $time );

            if ( $hour >= 11 ) // to be sure
                $add = 24 - $hour + 2; // next day

            if ( isset( $add ) )
                $setTarget = date( 'Y-m-d', $time + ( $add * HOUR_IN_SECONDS ) ) . ' 12:00:00';

            else
                $setTarget = date( 'Y-m-d', $time ) . ' 12:00:00';

            return DateTime::createFromFormat( 'Y-m-d H:i:s', $setTarget )->getTimestamp();

        } // end twelveTimestamp
    } // end class
} // end if

$timestamp = ( new controllerHelpers )->twelveTimestamp();