wp_shortcode_my_time.php

<?php
/* 
Usage: [mytime]
Edit the timezone on line 8 to reflect your actual timezone.
Find your timezone: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones */
add_shortcode( 'mytime', 'ims_my_time' );
function ims_my_time( $atts ) {
	$timezone = new DateTimeZone( 'Europe/Amsterdam' ); // edit this
	$return = wp_date("h:i A", null, $timezone );
	return $return;
}