date(1) - c7

1DATE(1)                          User Commands                         DATE(1)
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NAME

6       date - print or set the system date and time
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SYNOPSIS

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

13       Display the current time in the given FORMAT, or set the system date.
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15       Mandatory  arguments  to  long  options are mandatory for short options
16       too.
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18       -d, --date=STRING
19              display time described by STRING, not 'now'
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21       -f, --file=DATEFILE
22              like --date once for each line of DATEFILE
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24       -I[TIMESPEC], --iso-8601[=TIMESPEC]
25              output date/time in ISO 8601 format.  TIMESPEC='date'  for  date
26              only  (the  default), 'hours', 'minutes', 'seconds', or 'ns' for
27              date and time to the indicated precision.
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29       -r, --reference=FILE
30              display the last modification time of FILE
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32       -R, --rfc-2822
33              output date and time in RFC 2822 format.  Example: Mon,  07  Aug
34              2006 12:34:56 -0600
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36       --rfc-3339=TIMESPEC
37              output date and time in RFC 3339 format.  TIMESPEC='date', 'sec‐
38              onds', or 'ns' for date and time  to  the  indicated  precision.
39              Date  and  time  components  are  separated  by  a single space:
40              2006-08-07 12:34:56-06:00
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42       -s, --set=STRING
43              set time described by STRING
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45       -u, --utc, --universal
46              print or set Coordinated Universal Time (UTC)
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48       --help display this help and exit
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50       --version
51              output version information and exit
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53       FORMAT controls the output.  Interpreted sequences are:
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55       %%     a literal %
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57       %a     locale's abbreviated weekday name (e.g., Sun)
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59       %A     locale's full weekday name (e.g., Sunday)
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61       %b     locale's abbreviated month name (e.g., Jan)
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63       %B     locale's full month name (e.g., January)
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65       %c     locale's date and time (e.g., Thu Mar  3 23:05:25 2005)
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67       %C     century; like %Y, except omit last two digits (e.g., 20)
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69       %d     day of month (e.g., 01)
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71       %D     date; same as %m/%d/%y
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73       %e     day of month, space padded; same as %_d
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75       %F     full date; same as %Y-%m-%d
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77       %g     last two digits of year of ISO week number (see %G)
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79       %G     year of ISO week number (see %V); normally useful only with %V
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81       %h     same as %b
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83       %H     hour (00..23)
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85       %I     hour (01..12)
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87       %j     day of year (001..366)
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89       %k     hour, space padded ( 0..23); same as %_H
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91       %l     hour, space padded ( 1..12); same as %_I
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93       %m     month (01..12)
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95       %M     minute (00..59)
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97       %n     a newline
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99       %N     nanoseconds (000000000..999999999)
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101       %p     locale's equivalent of either AM or PM; blank if not known
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103       %P     like %p, but lower case
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105       %r     locale's 12-hour clock time (e.g., 11:11:04 PM)
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107       %R     24-hour hour and minute; same as %H:%M
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109       %s     seconds since 1970-01-01 00:00:00 UTC
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111       %S     second (00..60)
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113       %t     a tab
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115       %T     time; same as %H:%M:%S
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117       %u     day of week (1..7); 1 is Monday
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119       %U     week number of year, with Sunday as first day of week (00..53)
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121       %V     ISO week number, with Monday as first day of week (01..53)
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123       %w     day of week (0..6); 0 is Sunday
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125       %W     week number of year, with Monday as first day of week (00..53)
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127       %x     locale's date representation (e.g., 12/31/99)
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129       %X     locale's time representation (e.g., 23:13:48)
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131       %y     last two digits of year (00..99)
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133       %Y     year
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135       %z     +hhmm numeric time zone (e.g., -0400)
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137       %:z    +hh:mm numeric time zone (e.g., -04:00)
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139       %::z   +hh:mm:ss numeric time zone (e.g., -04:00:00)
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141       %:::z  numeric time zone with :  to  necessary  precision  (e.g.,  -04,
142              +05:30)
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144       %Z     alphabetic time zone abbreviation (e.g., EDT)
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146       By  default,  date  pads  numeric  fields  with  zeroes.  The following
147       optional flags may follow '%':
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149       -      (hyphen) do not pad the field
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151       _      (underscore) pad with spaces
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153       0      (zero) pad with zeros
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155       ^      use upper case if possible
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157       #      use opposite case if possible
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159       After any flags comes an optional field width,  as  a  decimal  number;
160       then an optional modifier, which is either E to use the locale's alter‐
161       nate representations if available, or O to use the  locale's  alternate
162       numeric symbols if available.
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ENVIRONMENT

165       TZ     Specifies the timezone, unless overridden by command line param‐
166              eters.  If neither is specified, the setting from /etc/localtime
167              is used.
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EXAMPLES

170       Convert seconds since the epoch (1970-01-01 UTC) to a date
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172              $ date --date='@2147483647'
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174       Show the time on the west coast of the US (use tzselect(1) to find TZ)
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176              $ TZ='America/Los_Angeles' date
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178       Show the local time for 9AM next Friday on the west coast of the US
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180              $ date --date='TZ="America/Los_Angeles" 09:00 next Fri'
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182       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>
183       Report date translation bugs to <http://translationproject.org/team/>
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DATE STRING

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

195       Written by David MacKenzie.
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COPYRIGHT

198       Copyright © 2013 Free Software Foundation, Inc.   License  GPLv3+:  GNU
199       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
200       This  is  free  software:  you  are free to change and redistribute it.
201       There is NO WARRANTY, to the extent permitted by law.
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