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

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

Answer 2

Today :

DateTime.Today

Tomorrow :

DateTime.Today.AddDays(1)

Yesterday :

DateTime.Today.AddDays(-1)

Answer 3

The trick is to use "DateTime" to manipulate dates; only use integers and strings when you need a "final result" from the date.

For example (pseudo code):

1. Get "DateTime tomorrow = Now + 1"

2. Determine date, day of week, day of month - whatever you want - of the resulting date.

Answer 4

Use DateTime.AddDays() (MSDN Documentation DateTime.AddDays Method).

DateTime tomorrow = DateTime.Now.AddDays(1);
DateTime yesterday = DateTime.Now.AddDays(-1);

Answer 5

Beware of adding an unwanted timezone to your results, especially if the date is going to be sent out via a Web API. Use UtcNow instead, to make it timezone-less.

Answer 6

You want DateTime.Today.AddDays(1).