DateTime Object
(
    [date] => 2018-07-01 00:00:00.000000
    [timezone_type] => 3
    [timezone] => America/Los_Angeles
)
DateTime Object
(
    [date] => 2018-07-31 00:00:00.000000
    [timezone_type] => 3
    [timezone] => America/Los_Angeles
)