C# DateTime to "YYYYMMDDHHMMSS" format

C#Datetime

C# Problem Overview

I want to convert a C# DateTime to "YYYYMMDDHHMMSS" format. But I don't find a built in method to get this format? Any comments?

C# Solutions

Solution 1 - C#

DateTime.Now.ToString("yyyyMMddHHmmss"); // case sensitive

Solution 2 - C#

This site has great examples check it out

// create date time 2008-03-09 16:05:07.123
DateTime dt = new DateTime(2008, 3, 9, 16, 5, 7, 123);

String.Format("{0:y yy yyy yyyy}",      dt);  // "8 08 008 2008"   year
String.Format("{0:M MM MMM MMMM}",      dt);  // "3 03 Mar March"  month
String.Format("{0:d dd ddd dddd}",      dt);  // "9 09 Sun Sunday" day
String.Format("{0:h hh H HH}",          dt);  // "4 04 16 16"      hour 12/24
String.Format("{0:m mm}",               dt);  // "5 05"            minute
String.Format("{0:s ss}",               dt);  // "7 07"            second
String.Format("{0:f ff fff ffff}",      dt);  // "1 12 123 1230"   sec.fraction
String.Format("{0:F FF FFF FFFF}",      dt);  // "1 12 123 123"    without zeroes
String.Format("{0:t tt}",               dt);  // "P PM"            A.M. or P.M.
String.Format("{0:z zz zzz}",           dt);  // "-6 -06 -06:00"   time zone

// month/day numbers without/with leading zeroes
String.Format("{0:M/d/yyyy}",           dt);  // "3/9/2008"
String.Format("{0:MM/dd/yyyy}",         dt);  // "03/09/2008"

// day/month names
String.Format("{0:ddd, MMM d, yyyy}",   dt);  // "Sun, Mar 9, 2008"
String.Format("{0:dddd, MMMM d, yyyy}", dt);  // "Sunday, March 9, 2008"

// two/four digit year
String.Format("{0:MM/dd/yy}",           dt);  // "03/09/08"
String.Format("{0:MM/dd/yyyy}",         dt);  // "03/09/2008"

Standard DateTime Formatting

String.Format("{0:t}", dt);  // "4:05 PM"                           ShortTime
String.Format("{0:d}", dt);  // "3/9/2008"                          ShortDate
String.Format("{0:T}", dt);  // "4:05:07 PM"                        LongTime
String.Format("{0:D}", dt);  // "Sunday, March 09, 2008"            LongDate
String.Format("{0:f}", dt);  // "Sunday, March 09, 2008 4:05 PM"    LongDate+ShortTime
String.Format("{0:F}", dt);  // "Sunday, March 09, 2008 4:05:07 PM" FullDateTime
String.Format("{0:g}", dt);  // "3/9/2008 4:05 PM"                  ShortDate+ShortTime
String.Format("{0:G}", dt);  // "3/9/2008 4:05:07 PM"               ShortDate+LongTime
String.Format("{0:m}", dt);  // "March 09"                          MonthDay
String.Format("{0:y}", dt);  // "March, 2008"                       YearMonth
String.Format("{0:r}", dt);  // "Sun, 09 Mar 2008 16:05:07 GMT"     RFC1123
String.Format("{0:s}", dt);  // "2008-03-09T16:05:07"               SortableDateTime
String.Format("{0:u}", dt);  // "2008-03-09 16:05:07Z"              UniversalSortableDateTime

/*
Specifier	DateTimeFormatInfo property 	Pattern value (for en-US culture)
	t 			ShortTimePattern 					h:mm tt
	d 			ShortDatePattern 					M/d/yyyy
	T 			LongTimePattern 					h:mm:ss tt
	D 			LongDatePattern 					dddd, MMMM dd, yyyy
	f 			(combination of D and t) 			dddd, MMMM dd, yyyy h:mm tt
	F 			FullDateTimePattern 				dddd, MMMM dd, yyyy h:mm:ss tt
	g 			(combination of d and t) 			M/d/yyyy h:mm tt
	G 			(combination of d and T) 			M/d/yyyy h:mm:ss tt
	m, M 		MonthDayPattern 					MMMM dd
	y, Y 		YearMonthPattern 					MMMM, yyyy
	r, R 		RFC1123Pattern						ddd, dd MMM yyyy HH':'mm':'ss 'GMT' (*)
	s 			SortableDateTi­mePattern             yyyy'-'MM'-'dd'T'HH':'mm':'ss (*)
	u 			UniversalSorta­bleDateTimePat­tern    yyyy'-'MM'-'dd HH':'mm':'ss'Z' (*)
	                                                (*) = culture independent	
*/

Update using c# 6 string interpolation format

// create date time 2008-03-09 16:05:07.123
DateTime dt = new DateTime(2008, 3, 9, 16, 5, 7, 123);

$"{dt:y yy yyy yyyy}";  // "8 08 008 2008"   year
$"{dt:M MM MMM MMMM}";  // "3 03 Mar March"  month
$"{dt:d dd ddd dddd}";  // "9 09 Sun Sunday" day
$"{dt:h hh H HH}";      // "4 04 16 16"      hour 12/24
$"{dt:m mm}";           // "5 05"            minute
$"{dt:s ss}";           // "7 07"            second
$"{dt:f ff fff ffff}";  // "1 12 123 1230"   sec.fraction
$"{dt:F FF FFF FFFF}";  // "1 12 123 123"    without zeroes
$"{dt:t tt}";           // "P PM"            A.M. or P.M.
$"{dt:z zz zzz}";       // "-6 -06 -06:00"   time zone

// month/day numbers without/with leading zeroes
$"{dt:M/d/yyyy}";    // "3/9/2008"
$"{dt:MM/dd/yyyy}";  // "03/09/2008"

// day/month names
$"{dt:ddd, MMM d, yyyy}";    // "Sun, Mar 9, 2008"
$"{dt:dddd, MMMM d, yyyy}";  // "Sunday, March 9, 2008"

// two/four digit year
$"{dt:MM/dd/yy}";    // "03/09/08"
$"{dt:MM/dd/yyyy}";  // "03/09/2008"

Solution 3 - C#

You've practically written the format yourself.

yourdate.ToString("yyyyMMddHHmmss")

  • MM = two digit month
  • mm = two digit minutes
  • HH = two digit hour, 24 hour clock
  • hh = two digit hour, 12 hour clock

Everything else should be self-explanatory.

Solution 4 - C#

You've just got to be careful between months (MM) and minutes (mm):

DateTime dt = DateTime.Now; // Or whatever
string s = dt.ToString("yyyyMMddHHmmss");

(Also note that HH is 24 hour clock, whereas hh would be 12 hour clock, usually in conjunction with t or tt for the am/pm designator.)

If you want to do this as part of a composite format string, you'd use:

string s = string.Format("The date/time is: {0:yyyyMMddHHmmss}", dt);

For further information, see the MSDN page on custom date and time formats.

Solution 5 - C#

You can use a custom format string:

DateTime d = DateTime.Now;
string dateString = d.ToString("yyyyMMddHHmmss");

Substitute "hh" for "HH" if you do not want 24-hour clock time.

Solution 6 - C#

If you use ReSharper, get help with ':' (see image)

Intellisense

Solution 7 - C#

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

Solution 8 - C#

DateTime.Now.ToString("yyyyMMddHHmmss");

if you just want it displayed as a string

Solution 9 - C#

In .Net Standard 2 you can format DateTime like belows:

DateTime dt = DateTime.Now;
CultureInfo iv = CultureInfo.InvariantCulture;

// Default formats
// D - long date           Tuesday, 24 April 2018
// d - short date          04/24/2018
// F - full date long      Tuesday, 24 April 2018 06:30:00
// f - full date short     Tuesday, 24 April 2018 06:30
// G - general long        04/24/2018 06:30:00
// g - general short       04/24/2018 06:30
// U - universal full      Tuesday, 24 April 2018 06:30:00
// u - universal sortable  2018-04-24 06:30:00
// s - sortable            2018-04-24T06:30:00
// T - long time           06:30:00
// t - short time          06:30
// O - ISO 8601            2018-04-24T06:30:00.0000000
// R - RFC 1123            Tue, 24 Apr 2018 06:30:00 GMT           
// M - month               April 24
// Y - year month          2018 April
Console.WriteLine(dt.ToString("D", iv));

// Custom formats
// M/d/yy                  4/8/18
// MM/dd/yyyy              04/08/2018
// yy-MM-dd                08-04-18
// yy-MMM-dd ddd           08-Apr-18 Sun
// yyyy-M-d dddd           2018-4-8 Sunday
// yyyy MMMM dd            2018 April 08      
// h:mm:ss tt zzz          4:03:05 PM -03
// HH:m:s tt zzz           16:03:05 -03:00
// hh:mm:ss t z            04:03:05 P -03
// HH:mm:ss tt zz          16:03:05 PM -03      
Console.WriteLine(dt.ToString("M/d/yy", iv));

Solution 10 - C#

string date = DateTime.Now.ToString("dd-MMM-yy");  //05-Aug-13

Solution 11 - C#

I am surprised no one has a link for this . any format can be created using the guidelines here:

Custom Date and Time Format Strings

For your specific example (As others have indicated) use something like

my_format="yyyyMMddHHmmss";
DateTime.Now.ToString(my_format);

Where my_format can be any string combination of y,M,H,m,s,f,F and more! Check out the link.

Solution 12 - C#

Get the date as a DateTime object instead of a String. Then you can format it as you want.

  • MM/dd/yyyy 08/22/2006
  • dddd, dd MMMM yyyy Tuesday, 22 August 2006
  • dddd, dd MMMM yyyy HH:mm Tuesday, 22 August 2006 06:30
  • dddd, dd MMMM yyyy hh:mm tt Tuesday, 22 August 2006 06:30 AM
  • dddd, dd MMMM yyyy H:mm Tuesday, 22 August 2006 6:30
  • dddd, dd MMMM yyyy h:mm tt Tuesday, 22 August 2006 6:30 AM
  • dddd, dd MMMM yyyy HH:mm:ss Tuesday, 22 August 2006 06:30:07
  • MM/dd/yyyy HH:mm 08/22/2006 06:30
  • MM/dd/yyyy hh:mm tt 08/22/2006 06:30 AM
  • MM/dd/yyyy H:mm 08/22/2006 6:30
  • MM/dd/yyyy h:mm tt 08/22/2006 6:30 AM
  • MM/dd/yyyy HH:mm:ss 08/22/2006 06:30:07

Click here for more patterns

Solution 13 - C#

using C# 6.0

$"Date-{DateTime.Now:yyyyMMddHHmmss}"

Solution 14 - C#

An easy Method, Full control over 'from type' and 'to type', and only need to remember this code for future castings

DateTime.ParseExact(InputDate, "dd/MM/yyyy", CultureInfo.InvariantCulture).ToString("yyyy/MM/dd"));

Solution 15 - C#

It is not a big deal. you can simply put like this

WriteLine($"{DateTime.Now.ToString("yyyy-MM-dd-HH:mm:ss")}");

Excuse here for I used $ which is for string Interpolation .

Solution 16 - C#

Specify formatted DateTime as Utc:

Step 1 - Initial date

var initialDtm = DateTime.Now;

Step 2 - Format date as willing ("yyyyMMddHHmmss")

var formattedDtm = DateTime.ParseExact(initialDtm.ToString("yyyyMMddHHmmss"), "yyyyMMddHHmmss", CultureInfo.InvariantCulture);

Step 3 - Specify kind of date (Utc)

var specifiedDtm = DateTime.SpecifyKind(formattedDtm, DateTimeKind.Utc);

Solution 17 - C#

Chances are slim that any of the above answers wouldn't has solved your problem. Nonetheless, I'm sharing my method which always works for me for different format of datetimes.

//Definition   
     public static DateTime ConvertPlainStringToDatetime(string Date, string inputFormat, string  outputFormat)
            {
                DateTime date;
                CultureInfo enUS = new CultureInfo("en-US");
                DateTime.TryParseExact(Date, inputFormat, enUS,
                                    DateTimeStyles.AdjustToUniversal, out date);
        
                string formatedDateTime = date.ToString(outputFormat);
                return Convert.ToDateTime(formatedDateTime);   
            }
//Calling
    
    string oFormat = "yyyy-MM-dd HH:mm:ss";
    DateTime requiredDT = ConvertPlainStringToDatetime("20190205","yyyyMMddHHmmss", oFormat  );
    DateTime requiredDT = ConvertPlainStringToDatetime("20190508-12:46:42","yyyyMMdd-HH:mm:ss", oFormat);

Solution 18 - C#

After spent a lot of hours on Google search, I found the below solution as when I locally give date time, no exception while from other server, there was Error......... Date is not in proper format.. Before saving/ searching Text box date time in C#, just checking either the outer Serer Culture is same like database server culture.. Ex both should be "en-US" or must be both "en-GB" asp below snap shot.

enter image description here

Even with different date format like (dd/mm/yyyy) or (yyyy/mm/dd), it will save or search accurately.

Categories
Recommended C# Solutions
Recommended Datetime Solutions

Previous Solution:

How to remove all duplicates from an array of objects?

JavascriptArraysObjectDuplicates

Next Solution:

Updating address bar with new URL without hash or reloading the page

JavascriptAjaxGoogle Chrome

Attributions

All content for this solution is sourced from the original question on Stackoverflow.

The content on this page is licensed under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionSARAVANView Question on Stackoverflow
Solution 1 - C#Jim LambView Answer on Stackoverflow
Solution 2 - C#NerdroidView Answer on Stackoverflow
Solution 3 - C#Anthony PegramView Answer on Stackoverflow
Solution 4 - C#Jon SkeetView Answer on Stackoverflow
Solution 5 - C#Paul Kearney - pkView Answer on Stackoverflow
Solution 6 - C#GeorgView Answer on Stackoverflow
Solution 7 - C#YudnerView Answer on Stackoverflow
Solution 8 - C#PharabusView Answer on Stackoverflow
Solution 9 - C#Sina LotfiView Answer on Stackoverflow
Solution 10 - C#Zohaib IqbalView Answer on Stackoverflow
Solution 11 - C#joecopView Answer on Stackoverflow
Solution 12 - C#Gihan Saranga SiriwardhanaView Answer on Stackoverflow
Solution 13 - C#Waleed A.K.View Answer on Stackoverflow
Solution 14 - C#Arun Prasad E SView Answer on Stackoverflow
Solution 15 - C#SUNIL DHAPPADHULEView Answer on Stackoverflow
Solution 16 - C#GiopetView Answer on Stackoverflow
Solution 17 - C#Iqra.View Answer on Stackoverflow
Solution 18 - C#Abdul KhaliqView Answer on Stackoverflow