Provided by: coreutils_9.1-1ubuntu2_amd64 bug

NAME

       date - print or set the system date and time

SYNOPSIS

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

DESCRIPTION

       Display  date and time in the given FORMAT.  With -s, or with [MMDDhhmm[[CC]YY][.ss]], set
       the date and time.

       Mandatory arguments to long options are mandatory for short options too.

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

       --debug
              annotate the parsed date, and warn about questionable usage to stderr

       -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: 2006-08-14T02:34:56-06:00

       --resolution
              output the available resolution of timestamps Example: 0.000000001

       -R, --rfc-email
              output date and time in RFC 5322 format.  Example: Mon, 14 Aug 2006 02:34:56 -0600

       --rfc-3339=FMT
              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

       --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; like %+4Y-%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

       %q     quarter of year (1..4)

       %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 the Epoch (1970-01-01 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

       +      pad with zeros, and put '+' before future years with >4 digits

       ^      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.

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,  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.

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report any translation bugs to <https://translationproject.org/team/>

COPYRIGHT

       Copyright  ©  2022  Free  Software  Foundation, Inc.  License GPLv3+: GNU GPL version 3 or
       later <https://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

       Full documentation <https://www.gnu.org/software/coreutils/date>
       or available locally via: info '(coreutils) date invocation'