Setting Card.DueDate goes to the day before

Hi, I’m having problems setting the dueDate of a card.

var serializer = new ManateeSerializer();
TrelloConfiguration.Serializer = serializer;
TrelloConfiguration.Deserializer = serializer;
TrelloConfiguration.JsonFactory = new ManateeFactory();
TrelloConfiguration.RestClientProvider = new Manatee.Trello.WebApi.WebApiClientProvider();
TrelloAuthorization.Default.AppKey = "my app key";
TrelloAuthorization.Default.UserToken = "my user token";
var learningBoard = new Board("my board id");
string listId = learningBoard.Lists.First().Id;
var list = new List(listId);
var member = list.Board.Members.First();
var card = list.Cards.Add("test card 2");
card.DueDate=new DateTime(2016,07,21);

When running this snippet the dueDate on the card is changed to 2016,07,20 at 21:00. I tried with other Dates and it always gives the day before at the same hour. Is this expected and documented somehwere? Sorry if I missed something, just starting to use this API.

[gregsdennis]

Please see Manatee.Trello.ManateeJson v1.5.1.

[saulosag]

Thank you for replying, I’ll wait further responses.