Format date time in .net

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How to format date time in .net?

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William Patrick
Asked on: Aug 12, 2011 at 8:16PM

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There are number of formats in datetime. here are some examples..

// create date time 2011-03-09 16:05:07.123
DateTime dt = new DateTime(2011, 3, 9, 16, 5, 7, 123);

String.Format("{0:y yy yyy yyyy}", dt);  // "8 08 008 2011"   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);            // "3/9/2011"
String.Format("{0:MM/dd/yyyy}", dt);          // "03/09/2011"

// day/month names
String.Format("{0:ddd, MMM d, yyyy}", dt);    // "Sun, Mar 9, 2011"
String.Format("{0:dddd, MMMM d, yyyy}", dt);  // "Sunday, March 9, 2011"
// two/four digit year
String.Format("{0:MM/dd/yy}", dt);            // "03/09/11"
String.Format("{0:MM/dd/yyyy}", dt);          // "03/09/2011"
String.Format("{0:t}", dt);  // "4:05 PM"                      
ShortTime
String.Format("{0:d}", dt);  // "3/9/2011"                        ShortDate
String.Format("{0:T}", dt);  // "4:05:07 PM"                      LongTime
String.Format("{0:D}", dt);  // "Sunday, March 09, 2011"          LongDate
String.Format("{0:f}", dt);  // "Sunday, March 09, 2011 4:05 PM"  LongDate+ShortTime
String.Format("{0:F}", dt);  // "Sunday, March 09, 2011 4:05:07 PM" FullDateTime
String.Format("{0:g}", dt);  // "3/9/2011 4:05 PM"                ShortDate+ShortTime
String.Format("{0:G}", dt);  // "3/9/2011 4:05:07 PM"             ShortDate+LongTime
String.Format("{0:m}", dt);  // "March 09"                        MonthDay
String.Format("{0:y}", dt);  // "March, 2011"                     YearMonth
String.Format("{0:r}", dt);  // "Sun, 09 Mar 2011 16:05:07 GMT"   RFC1123
String.Format("{0:s}", dt);  // "2011-03-09T16:05:07"             SortableDateTime
String.Format("{0:u}", dt);  // "2011-03-09 16:05:07Z"            UniversalSortableDateTime

Here is the table where you can match

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
edit | flag
Gokul A
Answered on: Aug 12, 2011 at 8:27PM

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