Third Tuesday from Office Hours

thirdtues.php

function find_next_third_tuesday() {
    $date = new DateTime();
    $date->modify('first day of this month');
    while ($date->format('D') != 'Tue') {
        $date->modify('next day');
    }
    $date->modify('+2 weeks');
    if($date < new DateTime()) {
        $date->modify('first day of next month');
        while ($date->format('D') != 'Tue') {
            $date->modify('next day');
        }
        $date->modify('+2 weeks');
    }
    return $date->format('l, F j, Y');
}

function show_next_third_tuesday(){
    $next_third_tuesday = find_next_third_tuesday();
    $output = $next_third_tuesday . " at 11:30am";
    return $output;
}

add_shortcode('next_third_tuesday', 'show_next_third_tuesday');