How to format the date correctly?

Question

PHP

Through the web service API I get:
["DateTime"]=> Date(1550959199000) [
"OffsetMinutes"]=>120

Answer 1

this is in milliseconds, you need to divide by 1000 to get seconds if you need to take into account the offset, then add / subtract ["OffsetMinutes"] (considering that these are minutes)

Answer 2

date('...', substr($date['DateTime'], 5, -1) / 1000)