Fix for phoebe's subscriptions where the next payment date was set in the AS before daylight savings took affect.

phoebe_reset_subscription_next_renewal.php

<?php
/**
 * Plugin Name: Prospress Script - Reset next payment dates
 * Description: A custom plugin for Phoebe's site that will reset all the next payment dates and push them back 1 minute.
 * Author: Matt Allan - Prospress Inc.
 * Author URI: http://prospress.com/
 * Version: 1.0
 */

function phoeb_reset_next_payment() {
	$logger = new WC_Logger();
	if ( isset( $_GET['phoebe_reset_dates'] ) ) {
		// get all active subscriptions
		$subscription_ids = get_posts( array(
				'post_status'    => 'wc-active',
				'post_type'      => 'shop_subscription',
				'posts_per_page' => '-1',
				'fields'         => 'ids',
			)
		);
		$updated_subscriptions = get_option( '_phoebe_wcs_subscriptions_updated' , array() );

		if ( count( $subscription_ids ) == count( $updated_subscriptions ) ) {
			echo "<h1>PROSPRESS - UPDATER FINISHED</h1>";
		}

		foreach ( $subscription_ids as $subscription_id ) {
			if ( in_array( $subscription_id, $updated_subscriptions ) ) {
				continue;
			}
			try {
				$subscription     = wcs_get_subscription( $subscription_id );
				$next_payment     = $subscription->get_time( 'next_payment' );
				$new_next_payment = gmdate( 'Y-m-d H:i:s', $next_payment + 60 ); // add one minute
				$subscription->update_dates( array( 'next_payment' => $new_next_payment ) );
				$updated_subscriptions[] = $subscription_id;
				update_option( '_phoebe_wcs_subscriptions_updated', $updated_subscriptions );
			} catch( Exception $e ) {
				$logger->add( 'phoebe-date-fixer', 'failed updating ' . $subscription_id . ' error: ' . print_r( $e->getMessage(), true ) ); // log any issues with updating

				$updated_subscriptions[] = $subscription_id;
				update_option( '_phoebe_wcs_subscriptions_updated', $updated_subscriptions );
			}
		}
	}
}
add_action( 'admin_footer', 'phoeb_reset_next_payment' );