C# DateTime to "YYYYMMDDHHMMSS" format

Question

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?

Answer 1

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

Answer 2

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"