Given a VSTS REST API call like this:
https://*account*/*project*/_apis/build/builds?definitions=2&minTime=????queryOrder=startTimeDescending&api-version=4.1
What is the correct datetime format for the minTime value? Everything I have tried either returns all builds, or none, and is not filtering by date. For example, I have tried "31/08/2018", "2018-08-31T12:01:31.450Z", "08/31/2018". The format is not documented anywhere that I can see.