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.	Example: Mon, 07 Aug 2006 12:34:56 -0600

       --rfc-3339=TIMESPEC
	      output  date  and  time in RFC 3339 format.  TIMESPEC=`date', `seconds', or `ns' for date and time to the indicated precision.  Date
	      and time components are separated by a single space: 2006-08-07 12:34:56-06:00

       -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.  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., 20)

       %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, space padded ( 0..23); same as %_H

       %l     hour, space padded ( 1..12); same as %_I

       %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 time zone (e.g., -0400)

       %:z    +hh:mm numeric time zone (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 opposite 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.

EXAMPLES

       Convert seconds since the epoch (1970-01-01 UTC) to a date

	      $ date --date='@2147483647'

       Show the time on the west coast of the US (use tzselect(1) to find TZ)

	      $ TZ='America/Los_Angeles' date

       Show the local time for 9AM next Friday on the west coast of the US

	      $ date --date='TZ="America/Los_Angeles" 09:00 next Fri'

DATE STRING

       The  --date=STRING is a mostly free format human readable date string such as "Sun, 29 Feb 2004 16:21:42 -0800" or "2004-02-29 16:21:42" or
       even "next Thursday".  A date string may contain items indicating calendar date, time of day, time zone, day of week, relative time,  rela-
       tive  date,  and numbers.  An empty string indicates the beginning of the day.  The date string format is more complex than is easily docu-
       mented here but is fully described in the info documentation.

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

       Report date bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report date translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2011 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  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 coreutils 'date invocation'

       should give you access to the complete manual.

GNU coreutils 8.12.197-032bb					  September 2011							   DATE(1)