%M --> Month name (January..December)
%W --> Weekday name (Sunday..Saturday)
%D --> Day of the month with English suffix (1st, 2nd, 3rd, etc.)
%Y --> Year, numeric, 4 digits
%y --> Year, numeric, 2 digits
%X --> Year for the week where Sunday is the first day of the week, numeric, 4 digits, used with '%V'
%x --> Year for the week, where Monday is the first day of the week, numeric, 4 digits, used with '%v'
%a --> Abbreviated weekday name (Sun..Sat)
%d --> Day of the month, numeric (00..31)
%e --> Day of the month, numeric (0..31)
%m --> Month, numeric (01..12)
%c --> Month, numeric (1..12)
%b --> Abbreviated month name (Jan..Dec)
%j --> Day of year (001..366)
%H --> Hour (00..23)
%k --> Hour (0..23)
%h --> Hour (01..12)
%I --> Hour (01..12)
%l --> Hour (1..12)
%i --> Minutes, numeric (00..59)
%r --> Time, 12-hour (hh:mm:ss [AP]M)
%T --> Time, 24-hour (hh:mm:ss)
%S --> Seconds (00..59)
%s --> Seconds (00..59)
%p --> AM or PM
%w --> Day of the week 0=Sunday..6=Saturday)
%U --> Week (0..53), where Sunday is the first day of the week
%u --> Week (0..53), where Monday is the first day of the week
%V --> Week (1..53), where Sunday is the first day of the week. Used with '%X'
%v --> Week (1..53), where Monday is the first day of the week. Used with '%x'
%% --> A Literal '%'
--> taken from mysql.com