Description:
------------
<?php
$start = strtotime('2020-03-08');
$end = strtotime('2020-03-09');
echo (($end - $start) / 24 / 60 / 60);
// https://sandbox.onlinephpfunctions.com/code/fff39352ad15de4414a53383499d02056f53bb22

Test script:
---------------
<?php
$start = strtotime('2020-03-08');
$end = strtotime('2020-03-09');
echo (($end - $start) / 24 / 60 / 60);


Expected result:
----------------
1

Actual result:
--------------
0.95833333333333