Please Help with Wolfram Alpha API

Hi all. I am trying to fetch dates from Wolfram and compare them to a date time picker date. currently my query is something like: “date x < first day of month after 08.2018”. The result should change the results of some calculations, but it isn’t. I’m fairly sure that’s because the result I am getting from Wolfram Alfa is not interpreted correctly. I just don’t know how to fix it and make it comparable to the date of the date time picker (used format: dd.mm.yyyy). Does anybody know how to fix this?