. DateTime.Now.ToString formatted strings in net

. NET in DateTime.Now.ToString display milliseconds:
DateTime.Now.ToString ("Yyyy-mm-dd HH:mm:ss.fff")

Other formatted strings for DateTime.Now.ToString:

formatting strings	Interpretation	Example
D	Long Date	Thursday, April 2008
D	Short Date	04/10/2008
F	Full Date Long	Thursday, April 2008 06:30:00
F	Full date Short	Thursday, April 2008 06:30
G	General Long	04/10/2008 06:30:00
G	General Short	04/10/2008 06:30
M	Month	April 10
O	ISO 8601	2008-04-10t06:30:00.0000000
R	RFC 1123	Thu, APR 06:30:00 GMT
S	Sortable	2008-04-10t06:30:00
T	Long time	06:30:00
T	Short time	06:30
U	Universal full	Wednesday, April 2008 22:30:00
U	Universal sortable	2008-04-10 06:30:00z
Y	Year Month	April
Yy-mm-dd	Custom	08-04-10
YYYY MMMM DD	Custom	April 08
YY-MMMM-DD DDD	Custom	08-apr-8 Tue
yyyy-m-d dddd	Custom	2008-4-8 Tuesday
Hh:mm:ss T Z	Custom	04:03:05 P-7
H:MM:SS TT ZZ	Custom	4:03:05 PM-07
HH:MM:SS TT ZZ	Custom	16:03:05 PM-07
Hh:m:s TT zzz	Custom	16:3:5 pm-07:00

The above source ReSharper.
Of course, you can also use  The properties provided by the DateTime class (for example: DateTime.Now.Year) and methods (such as: DateTime.Now.ToShortDateString ()).
The above content is relatively simple, but encountered some needs are very useful ~

. DateTime.Now.ToString formatted strings in net