Change the EE3 calendar start date. You can add the above to a custom functions plugin or into your WordPress theme's functions.php file. http://eventespresso.com/wiki/create-site-specific-plugin-wordpress-site/

functions.php

<?php
//* Please do NOT include the opening php tag, except of course if you're starting with a blank file

function eecal_custom_start_month(){
    wp_add_inline_script( 
        'espresso_calendar',
        'jQuery( document ).ready(function($) {
            $("#espresso_calendar").fullCalendar( "gotoDate", 2017, 0, 1);
        } );'
    );
}
add_action( 'wp_enqueue_scripts', 'eecal_custom_start_month', 11 );