Description:
------------
strtotime() is encountering issues when dealing with Nov 1st, 2020 specifically.

- Adding 2 x 86400 seconds to Nov 1st will actually return Nov 2nd
- Adding '+2 days' to the same date returns Nov 3rd

This issue does not happen with any other date.

Test script:
---------------
<?php

/* Add 2 days to Oct 1st
** Outputs 2020-10-03 - Correct
*/
echo strftime('%Y-%m-%d', strtotime('2020-10-01') + (2 * 86400))."\n";

/* Add 2 days to Nov 1st
** Outputs 2020-11-02 - Bug
*/
echo strftime('%Y-%m-%d', strtotime('2020-11-01') + (2 * 86400))."\n";

/* Add 2 days to Nov 1st
** Outputs 2020-11-03 - Correct
*/
echo strftime('%Y-%m-%d', strtotime('2020-11-01 + 2 days'))."\n";

Expected result:
----------------
2020-10-03
2020-11-03
2020-11-03

Actual result:
--------------
2020-10-03
2020-11-02
2020-11-03