DateTime in C#

DateTime is a built-in value type in C# that represents a date and time. It is used extensively in many different types of applications, from simple console programs to complex web applications.

Here is an example of how to create a DateTime object in C#:

DateTime dt = new DateTime(2023, 02, 23);

This creates a new DateTime object representing the date and time February 23, 2023 at 12:00:00 AM.

The DateTime type provides a wide range of methods and properties for working with dates and times. Here are some of the most commonly used methods:

AddDays: Adds a specified number of days to the current DateTime object.

DateTime dt = new DateTime(2023, 02, 23);
DateTime newDt = dt.AddDays(7); // newDt = March 2, 2023

AddHours: Adds a specified number of hours to the current DateTime object.

DateTime dt = new DateTime(2023, 02, 23, 10, 0, 0);
DateTime newDt = dt.AddHours(3); // newDt = February 23, 2023 1:00:00 PM

AddMinutes: Adds a specified number of minutes to the current DateTime object.

DateTime dt = new DateTime(2023, 02, 23, 10, 0, 0);
DateTime newDt = dt.AddMinutes(30); // newDt = February 23, 2023 10:30:00 AM

AddMonths: Adds a specified number of months to the current DateTime object.

DateTime dt = new DateTime(2023, 02, 23);
DateTime newDt = dt.AddMonths(1); // newDt = March 23, 2023

AddYears: Adds a specified number of years to the current DateTime object.

DateTime dt = new DateTime(2023, 02, 23);
DateTime newDt = dt.AddYears(1); // newDt = February 23, 2024

Compare: Compares two DateTime objects and returns an integer indicating their relative values.

DateTime dt1 = new DateTime(2023, 02, 23);
DateTime dt2 = new DateTime(2024, 02, 23);
int result = DateTime.Compare(dt1, dt2); // result = -1

Equals: Determines whether two DateTime objects are equal.

DateTime dt1 = new DateTime(2023, 02, 23);
DateTime dt2 = new DateTime(2023, 02, 23);
bool isEqual = dt1.Equals(dt2); // isEqual = true

Parse: Converts a string representation of a date and time into a DateTime object.

string str = "2023-02-23 10:00:00";
DateTime dt = DateTime.Parse(str); // dt = February 23, 2023 10:00:00 AM

TryParse: Tries to convert a string representation of a date and time into a DateTime object, and returns a Boolean value indicating whether the conversion succeeded or failed.

string str = "2023-02-23 10:00:00";
DateTime dt;
bool success = DateTime.TryParse(str, out dt); // success = true, dt = February 23