Date Time C# Tutorial

Format Character       Format Pattern                               Associated Property/ Description
D                      MM/dd/yyyy                                   ShortDatePattern
D                      dddd, MMMM dd, yyyy                          LongDatePattern
F                      dddd, MMMM dd, yyyy HH:mm                    Full date and time 
F                      dddd, MMMM dd, yyyy HH:mm:ss                 FullDateTimePattern
G                      MM/dd/yyyy HH:mm                             General 
G                      MM/dd/yyyy HH:mm:ss                          General 
M, M                   MMMM dd                                      MonthDayPattern
r, R                   ddd, dd MMM yyyy HH':'mm':'ss 'GMT'          RFC1123Pattern
S                      yyyy-MM-dd HH:mm:ss                          SortableDateTimePattern using local time
T                      HH:mm                                        ShortTimePattern
T                      HH:mm:ss                                     LongTimePattern
U                      yyyy-MM-dd HH:mm:ss                          UniversalSortableDateTimePattern using universal time
U                      dddd, MMMM dd, yyyy HH:mm:ss                 UniversalSortableDateTimePattern
y, Y                   MMMM, yyyy                                   YearMonthPattern