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date command man page

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.

ENVIRONMENT
       TZ     Specifies the timezone, unless overridden by command line param-
     eters.  If neither is specified, the setting from /etc/localtime
     is used.

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   May 2011       DATE(1)

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