C# Language DateTime Formating


Example

Standard DateTime Formatting

DateTimeForma­tInfo specifies a set of specifiers for simple date and time formating. Every specifier correspond to a particular DateTimeFormatInfo format pattern.

//Create datetime
DateTime dt = new DateTime(2016,08,01,18,50,23,230);

var t = String.Format("{0:t}", dt); // "6:50 PM"                             ShortTime
var d = String.Format("{0:d}", dt); // "8/1/2016"                            ShortDate
var T = String.Format("{0:T}", dt); // "6:50:23 PM"                          LongTime
var D = String.Format("{0:D}", dt); // "Monday, August 1, 2016"              LongDate
var f = String.Format("{0:f}", dt); // "Monday, August 1, 2016 6:50 PM"      LongDate+ShortTime
var F = String.Format("{0:F}", dt); // "Monday, August 1, 2016 6:50:23 PM"   FullDateTime
var g = String.Format("{0:g}", dt); // "8/1/2016 6:50 PM"                    ShortDate+ShortTime
var G = String.Format("{0:G}", dt); // "8/1/2016 6:50:23 PM"                 ShortDate+LongTime
var m = String.Format("{0:m}", dt); // "August 1"                            MonthDay
var y = String.Format("{0:y}", dt); // "August 2016"                         YearMonth
var r = String.Format("{0:r}", dt); // "SMon, 01 Aug 2016 18:50:23 GMT"      RFC1123
var s = String.Format("{0:s}", dt); // "2016-08-01T18:50:23"                 SortableDateTime
var u = String.Format("{0:u}", dt); // "2016-08-01 18:50:23Z"                UniversalSortableDateTime

Custom DateTime Formatting

There are following custom format specifiers:

  • y (year)
  • M (month)
  • d (day)
  • h (hour 12)
  • H (hour 24)
  • m (minute)
  • s (second)
  • f (second fraction)
  • F (second fraction, trailing zeroes are trimmed)
  • t (P.M or A.M)
  • z (time zone).
var year =       String.Format("{0:y yy yyy yyyy}", dt); // "16 16 2016 2016"  year
var month =      String.Format("{0:M MM MMM MMMM}", dt); // "8 08 Aug August"  month
var day =        String.Format("{0:d dd ddd dddd}", dt); // "1 01 Mon Monday"  day
var hour =       String.Format("{0:h hh H HH}",     dt); // "6 06 18 18"       hour 12/24
var minute =     String.Format("{0:m mm}",          dt); // "50 50"            minute
var secound =    String.Format("{0:s ss}",          dt); // "23 23"            second
var fraction =   String.Format("{0:f ff fff ffff}", dt); // "2 23 230 2300"    sec.fraction
var fraction2 =  String.Format("{0:F FF FFF FFFF}", dt); // "2 23 23 23"       without zeroes
var period =     String.Format("{0:t tt}",          dt); // "P PM"             A.M. or P.M.
var zone =       String.Format("{0:z zz zzz}",      dt); // "+0 +00 +00:00"    time zone

You can use also date separator / (slash) and time sepatator : (colon).

For code example

For more information MSDN.