how get yesterday and tomorrow datetime in c#

Question

I have a code:

int MonthNow = System.DateTime.Now.Month;
int YearNow = System.DateTime.Now.Year;
int DayNow = System.DateTime.Now.Day;

How

Answer 1

To get "local" yesterday in UTC.

  var now = DateTime.Now;
  var yesterday = new DateTime(now.Year, now.Month, now.Day, 0, 0, 0, DateTimeKind.Utc).AddDays(-1);

Answer 2

You should do it this way, if you want to get yesterday and tomorrow at 00:00:00 time:

DateTime yesterday = DateTime.Today.AddDays(-1);
DateTime tomorrow = DateTime.Today.AddDays(1); // Output example: 6. 02. 2016 00:00:00

Just bare in mind that if you do it this way:

DateTime yesterday = DateTime.Now.AddDays(-1);
DateTime tomorrow = DateTime.Now.AddDays(1); // Output example: 6. 02. 2016 18:09:23

then you will get the current time minus one day, and not yesterday at 00:00:00 time.

Answer 3

You can find this info right in the API reference.

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