This is a copy of the man date man page, you may be looking for date, hwclock examples DATE(1) User Commands DATE(1)

NAME date - print or set the system date and time

SYNOPSIS date [OPTION]… [+FORMAT] date [-u|–utc|–universal] [MMDDhhmm[[CC]YY][.ss]]

DESCRIPTION Display the current time in the given FORMAT, or set the system date.

   -d, --date=STRING
          display time described by STRING, not ‘now’

   -f, --file=DATEFILE
          like --date once for each line of DATEFILE

   -r, --reference=FILE
          display the last modification time of FILE

   -R, --rfc-2822
          output date and time in RFC 2822 format

   --rfc-3339=TIMESPEC
          output date and time in RFC 3339 format.  TIMESPEC=‘date’, ‘sec?
          onds’, or ‘ns’ for date and time to the indicated precision.

   -s, --set=STRING
          set time described by STRING

   -u, --utc, --universal
          print or set Coordinated Universal Time

   --help display this help and exit

   --version
          output version information and exit

   FORMAT controls the output.  The only valid option for the second  form
   specifies Coordinated Universal Time.  Interpreted sequences are:

   %%     a literal %

   %a     locale’s abbreviated weekday name (e.g., Sun)

   %A     locale’s full weekday name (e.g., Sunday)

   %b     locale’s abbreviated month name (e.g., Jan)

   %B     locale’s full month name (e.g., January)

   %c     locale’s date and time (e.g., Thu Mar  3 23:05:25 2005)

   %C     century; like %Y, except omit last two digits (e.g., 21)

   %d     day of month (e.g, 01)

   %D     date; same as %m/%d/%y

   %e     day of month, space padded; same as %_d

   %F     full date; same as %Y-%m-%d

   %g     last two digits of year of ISO week number (see %G)

   %G     year of ISO week number (see %V); normally useful only with %V

   %h     same as %b

   %H     hour (00..23)

   %I     hour (01..12)

   %j     day of year (001..366)

   %k     hour ( 0..23)

   %l     hour ( 1..12)

   %m     month (01..12)

   %M     minute (00..59)

   %n     a newline

   %N     nanoseconds (000000000..999999999)

   %p     locale’s equivalent of either AM or PM; blank if not known

   %P     like %p, but lower case

   %r     locale’s 12-hour clock time (e.g., 11:11:04 PM)

   %R     24-hour hour and minute; same as %H:%M

   %s     seconds since 1970-01-01 00:00:00 UTC

   %S     second (00..60)

   %t     a tab

   %T     time; same as %H:%M:%S

   %u     day of week (1..7); 1 is Monday

   %U     week number of year, with Sunday as first day of week (00..53)

   %V     ISO week number, with Monday as first day of week (01..53)

   %w     day of week (0..6); 0 is Sunday

   %W     week number of year, with Monday as first day of week (00..53)

   %x     locale’s date representation (e.g., 12/31/99)

   %X     locale’s time representation (e.g., 23:13:48)

   %y     last two digits of year (00..99)

   %Y     year

   %z     +hhmm numeric timezone (e.g., -0400)

   %:z    +hh:mm numeric timezone (e.g., -04:00)

   %::z   +hh:mm:ss numeric time zone (e.g., -04:00:00)

   %:::z  numeric  time  zone  with  :  to necessary precision (e.g., -04,
          +05:30)

   %Z     alphabetic time zone abbreviation (e.g., EDT)

   By default, date  pads  numeric  fields  with  zeroes.   The  following
   optional flags may follow ‘%’:

          - (hyphen) do not pad the field _ (underscore) pad with spaces 0
          (zero) pad with zeros ^ use upper case if possible #  use  oppo?
          site case if possible

   After  any  flags  comes  an optional field width, as a decimal number;
   then an optional modifier, which is either E to use the locale’s alter?
   nate  representations  if available, or O to use the locale’s alternate
   numeric symbols if available.

AUTHOR Written by David MacKenzie.

REPORTING BUGS Report bugs to bug-coreutils@gnu.org.

COPYRIGHT Copyright © 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License http://www.gnu.org/licenses/gpl.html. There is NO WARRANTY, to the extent permitted by law.

SEE ALSO The full documentation for date is maintained as a Texinfo manual. If the info and date programs are properly installed at your site, the command

          info date

   should give you access to the complete manual.

date 5.97 January 2007 DATE(1)

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