DateTime Formats in C# (2024)

FAQs

What is the format of date time in C#? ›

Method: Applying C# DateTime Format yyyy-mm-dd.

You can view the source for the entire set of examples from this article in either Visual Basic, F#, or C#. An alternative to the DateTime structure for working with date and time values in particular time zones is the DateTimeOffset structure.

Why is the ISO 8601 date format considered the best? The ISO 8601 date format is considered the best because it eliminates ambiguity and confusion. It is an international standard that follows the format “YYYY-MM-DD”. This format is universally understood and is not subject to regional variations.

Use the DateTime. TryParseExact method in C# for Date Format validation. They method converts the specified string representation of a date and time to its DateTime equivalent. It checks whether the entered date format is correct or not.

The international standard recommends writing the date as year, then month, then the day: YYYY-MM-DD. So if both Australians and Americans used this, they would both write the date as 2019-02-03.

DateTime represents some point in time that is composed of a date and a time. However, you can retrieve the date part via the Date property (which is another DateTime with the time set to 00:00:00 ). And you can retrieve individual date properties via Day , Month and Year .

The DateTime and TimeSpan value types differ in that a DateTime represents an instant in time, whereas a TimeSpan represents a time interval. This means, for example, that you can subtract one instance of DateTime from another to obtain the time interval between them.

DateTime is a struct in C# that represents an instant in time, typically expressed as a date and time of day. It is available in the System namespace and has various constructors, fields, properties, methods, and operators to work with dates and times.

The ISO 8601 notation is today the commonly recommended format of representing date and time as human-readable strings in new plain-text communication protocols and file formats.

Which date format is better? ›

In America, the date is formally written in month/day/year form. Thus, “January 1, 2011” is widely considered to be correct. In formal usage, it is not appropriate to omit the year, or to use a purely numerical form of the date.

In most cases, writing the date in full letters would be better than the example above. Apr. 3rd, 2002 , for example will be easy to understand for any English-speaking audience.

C# provides several methods and operators for comparing DateTime values, including the Equals() method, the Compare() method, the CompareTo() method, and the various comparison operators. The Equals method checks if two DateTime values are equal.

DateTime DT = new DateTime(2019,05,09,9,15,0);// this will initialize variable with a specific date(09/05/2019) and time(9:15:00). Note: The (year, month, day, hour, minute, second) format is followed.

dd/MM/yyyy — Example: 23/06/2013. yyyy/M/d — Example: 2013/6/23. yyyy-MM-dd — Example: 2013-06-23. yyyyMMddTHH:mmzzz — Example: 20130623T13:22-0500.

If you have to put your DateTime value directly into your query string, you can simply use myDate. ToString("MM/dd/yyyy",CultureInfo. InvariantCulture); .

With the fractional part included, the format for these values is ' YYYY-MM-DD hh:mm:ss [. fraction ]' , the range for DATETIME values is '1000-01-01 00:00:00.000000' to '9999-12-31 23:59:59.499999' , and the range for TIMESTAMP values is '1970-01-01 00:00:01.000000' to '2038-01-19 03:14:07.499999' .

There are two ways to initialize the DateTime variable: DateTime DT = new DateTime();// this will initialze variable with a date(01/01/0001) and time(00:00:00). DateTime DT = new DateTime(2019,05,09,9,15,0);// this will initialize variable with a specific date(09/05/2019) and time(9:15:00).