Subtract one day from DateTime object [duplicate]

Answer 1

Alternative version:

DateTime date = ...;
date -= TimeSpan.FromDays(1);

Answer 2

I am not familiar with windows phone development but you may try to use DateTime.AddDays(-1) method call. According to MSDN this call is supported by windows phone OS.

For example:

var today = DateTime.Now;
var yesterday = today.AddDays(-1);

Answer 3

Just use the AddDays method, remembering that it doesn't change the value it's called on - it returns a new DateTime value.

DateTime date = ...;
date = date.AddDays(-1);