date - print or set the system date and time


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


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

   Mandatory  arguments  to  long  options are mandatory for short options

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

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

   -I[FMT], --iso-8601[=FMT]
          output date/time in ISO 8601 format.  FMT='date' for  date  only
          (the  default),  'hours', 'minutes', 'seconds', or 'ns' for date
          and    time    to    the    indicated    precision.     Example:

   -R, --rfc-2822
          output  date  and time in RFC 2822 format.  Example: Mon, 14 Aug
          2006 02:34:56 -0600

          output date/time in RFC 3339 format.  FMT='date', 'seconds',  or
          'ns'  for  date  and  time to the indicated precision.  Example:
          2006-08-14 02:34:56-06:00

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

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

   -u, --utc, --universal
          print or set Coordinated Universal Time (UTC)

   --help display this help and exit

          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,

   %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
   alternate representations if  available,  or  O  to  use  the  locale's
   alternate numeric symbols if available.


   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'


   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,
   relative date, and numbers.  An empty string indicates the beginning of
   the day.  The date  string  format  is  more  complex  than  is  easily
   documented here but is fully described in the info documentation.


   Written by David MacKenzie.


   GNU coreutils online help: <>
   Report date translation bugs to <>


   Copyright    2016  Free Software Foundation, Inc.  License GPLv3+: GNU
   GPL version 3 or later <>.
   This is free software: you are free  to  change  and  redistribute  it.
   There is NO WARRANTY, to the extent permitted by law.


   Full documentation at: <>
   or available locally via: info '(coreutils) date invocation'


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