C# DateTime Format
Date and Time in C# are handled by the DateTime class in C#, which provides properties and methods to format dates in different datetime formats. This article blog explains how to work with date and time format in C#.
The following table describes various C# DateTime formats and their results. Here we see all the patterns of the C# DateTime, format, and results.
| Format |
Result |
| DateTime.Now.ToString("MM/dd/yyyy") |
05/29/2015 |
| DateTime.Now.ToString("dddd, dd MMMM yyyy") |
Friday, 29 May 2015 |
| DateTime.Now.ToString("dddd, dd MMMM yyyy") |
Friday, 29 May 2015 05:50 |
| DateTime.Now.ToString("dddd, dd MMMM yyyy") |
Friday, 29 May 2015 05:50 AM |
| DateTime.Now.ToString("dddd, dd MMMM yyyy") |
Friday, 29 May 2015 5:50 |
| DateTime.Now.ToString("dddd, dd MMMM yyyy") |
Friday, 29 May 2015 5:50 AM |
| DateTime.Now.ToString("dddd, dd MMMM yyyy HH:mm:ss") |
Friday, 29 May 2015 05:50:06 |
| DateTime.Now.ToString("MM/dd/yyyy HH:mm") |
05/29/2015 05:50 |
| DateTime.Now.ToString("MM/dd/yyyy hh:mm tt") |
05/29/2015 05:50 AM |
| DateTime.Now.ToString("MM/dd/yyyy H:mm") |
05/29/2015 5:50 |
| DateTime.Now.ToString("MM/dd/yyyy h:mm tt") |
05/29/2015 5:50 AM |
| DateTime.Now.ToString("MM/dd/yyyy HH:mm:ss") |
05/29/2015 05:50:06 |
| DateTime.Now.ToString("MMMM dd") |
May 29 |
| DateTime.Now.ToString("yyyy’-‘MM’-‘dd’T’HH’:’mm’:’ss.fffffffK") |
2015-05-16T05:50:06.7199222-04:00 |
| DateTime.Now.ToString("ddd, dd MMM yyy HH’:’mm’:’ss ‘GMT’") |
Fri, 16 May 2015 05:50:06 GMT |
| DateTime.Now.ToString("yyyy’-‘MM’-‘dd’T’HH’:’mm’:’ss") |
2015-05-16T05:50:06 |
| DateTime.Now.ToString("HH:mm") |
05:50 |
| DateTime.Now.ToString("hh:mm tt") |
05:50 AM |
| DateTime.Now.ToString("H:mm") |
5:50 |
| DateTime.Now.ToString("h:mm tt") |
5:50 AM |
| DateTime.Now.ToString("HH:mm:ss") |
05:50:06 |
| DateTime.Now.ToString("yyyy MMMM") |
2015 May |
- d: Represents the day of the month as a number from 1 through 31.
- dd: Represents the day of the month as a number from 01 through 31.
- ddd: Represents the abbreviated name of the day (Mon, Tues, Wed, etc).
- dddd: Represents the full name of the day (Monday, Tuesday, etc).
- h: 12-hour clock hour (e.g. 4).
- hh: 12-hour clock, with a leading 0 (e.g. 06)
- H: 24-hour clock hour (e.g. 15)
- HH: 24-hour clock hour, with a leading 0 (e.g. 22)
- m: Minutes
- mm: Minutes with a leading zero
- M: Month number(eg.3)
- MM: Month number with leading zero(eg.04)
- MMM: Abbreviated Month Name (e.g. Dec)
- MMMM: Full month name (e.g. December)
- s: Seconds
- ss: Seconds with leading zero
- t: Abbreviated AM / PM (e.g. A or P)
- tt: AM / PM (e.g. AM or PM
- y: Year, no leading zero (e.g. 2015 would be 15)
- yy: Year, leading zero (e.g. 2015 would be 015)
- yyy: Year, (e.g. 2015)
- yyyy: Year, (e.g. 2015)
- K: Represents the time zone information of a date and time value (e.g. +05:00)
- z: With DateTime values represent the signed offset of the local operating system's time zone from
Coordinated Universal Time (UTC), measured in hours. (e.g. +6)
- zz: As z, but with leading zero (e.g. +06)
- zzz: With DateTime values represents the signed offset of the local operating system's time zone from UTC, measured in hours and minutes. (e.g. +06:00)
- f: Represents the most significant digit of the seconds fraction; that is, it represents the tenths of a second in a date and time value.
- ff: Represents the two most significant digits of the second's fraction in date and time
- fff: Represents the three most significant digits of the second's fraction; that is, it represents the milliseconds in a date and time value.
- ffff: Represents the four most significant digits of the second's fraction; that is, it represents the ten-thousandths of a second in a date and time value. While it is possible to display the ten thousandths of a second component of a time value, that value may not be meaningful.
- fffff: Represents the five most significant digits of the second's fraction; that is, it represents the hundred-thousandths of a second in a date and time value.
- ffffff: Represents the six most significant digits of the second's fraction; that is, it represents the millionths of a second in a date and time value.
- fffffff: Represents the seven most significant digits of the second's fraction; that is, it represents the ten-millionths of a second in a date and time value.
Here is a complete C# code sample that uses these formats.
using System;
namespace DateTimeFormatInCSharpSample
{
class Program
{
static void Main(string[] args)
{
// Get current DateTime. It can be any DateTime object in your code.
DateTime aDate = DateTime.Now;
// Format Datetime in different formats and display them
Console.WriteLine(aDate.ToString("MM/dd/yyyy"));
Console.WriteLine(aDate.ToString("dddd, dd MMMM yyyy"));
Console.WriteLine(aDate.ToString("dddd, dd MMMM yyyy"));
Console.WriteLine(aDate.ToString("dddd, dd MMMM yyyy"));
Console.WriteLine(aDate.ToString("dddd, dd MMMM yyyy"));
Console.WriteLine(aDate.ToString("dddd, dd MMMM yyyy"));
Console.WriteLine(aDate.ToString("dddd, dd MMMM yyyy HH:mm:ss"));
Console.WriteLine(aDate.ToString("MM/dd/yyyy HH:mm"));
Console.WriteLine(aDate.ToString("MM/dd/yyyy hh:mm tt"));
Console.WriteLine(aDate.ToString("MM/dd/yyyy H:mm"));
Console.WriteLine(aDate.ToString("MM/dd/yyyy h:mm tt"));
Console.WriteLine(aDate.ToString("MM/dd/yyyy HH:mm:ss"));
Console.WriteLine(aDate.ToString("MMMM dd"));
Console.WriteLine(aDate.ToString("yyyy’-‘MM’-‘dd’T’HH’:’mm’:’ss.fffffffK"));
Console.WriteLine(aDate.ToString("ddd, dd MMM yyy HH’:’mm’:’ss ‘GMT’"));
Console.WriteLine(aDate.ToString("yyyy’-‘MM’-‘dd’T’HH’:’mm’:’ss"));
Console.WriteLine(aDate.ToString("HH:mm"));
Console.WriteLine(aDate.ToString("hh:mm tt"));
Console.WriteLine(aDate.ToString("H:mm"));
Console.WriteLine(aDate.ToString("h:mm tt"));
Console.WriteLine(aDate.ToString("HH:mm:ss"));
Console.WriteLine(aDate.ToString("yyyy MMMM"));
Console.ReadKey();
}
}
}
Above code sample generates the following output.
![CSharp DateTime]()
Here is a detailed tutorial on DateTime and formatting: Working with DateTime In C#
Learn about DateTime Class in C#
Calculate the Date Difference in C#