Syntax Details for Server-Side Includes

AUTH_TYPE PATH_TRANSLATED
CONTENT_LENGTH QUERY_STRING
CONTENT_TYPE REMOTE_ADDR
DATE_GMT REMOTE_HOST
DATE_LOCAL REMOTE_IDEN
DOCUMENT_NAME REMOTE_USER
DOCUMENT_URI REQUEST_METHOD
GATEWAY_INTERFACE SCRIPT_NAME
HTTP_ACCEPT SERVER_NAME
HTTP_USER_AGENT SERVER_PORT
LAST_MODIFIED SERVER_PROTOCOL
PATH_INFO SERVER_SOFTWARE

Field descriptors for the timefmt variable
%aDisplays the locale’s abbreviated weekday name.
%ADisplays the locale’s full weekday name.
%bDisplays the locale’s abbreviated month name.
%BDisplays the locale’s full month name.
%cDisplays the locale’s appropriate date and time representation (default).
%dDisplays the day of the month as a decimal number (01-31).
%DDisplays the date in the format equivalent to %m/%d/%y.
%eDisplays the day of the month as a decimal number (1-31 in a two-digit field leading space fill).
%hDisplays the locale’s abbreviated month name (a synonym for %b).
%HDisplays the hour (24-hour clock) as a decimal number (00-23).
%IDisplays the hour (12-hour clock) as a decimal number (01-12).
%jDisplays the day of year as a decimal number (001-366).
%mDisplays the month of year as a decimal number (01-12).
%MDisplays the minutes as a decimal number (00-59).
%nInserts a newline character.
%pDisplays the locale’s equivalent of either AM or PM.
%rDisplays 12-hour clock time (01-12) using the AM-PM notation; in the POSIX locale, this is equivalent to %I:%M:%S %p.
%SDisplays the seconds as a decimal number (00-59).
%tInserts a tab character.
%TDisplays the 24-hour clock (00-23) in the format equivalent to %H:%M:%S.
%UDisplays the week number of the year as a decimal number (00-53) counting Sunday as the first day of the week.
%wDisplays the weekday as a decimal number (Sunday = 0).
%WDisplays the week number of the year as a decimal number (00-53) counting Monday as the first day of the week.
%xDisplays the locale’s appropriate date representation.
%XDisplays the locale’s appropriate time representation.
%yDisplays the last two numbers of the year (00-99).
%YDisplays the year with century as a decimal number.
%ZDisplays the time-zone name, or no character if no time zone is determinable.
%%Displays a % (percent sign) character.