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man page(1) manual page
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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.
- -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. 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 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.
- TZ
- Specifies the timezone, unless overridden by command line parameters.
If neither is specified, the setting from /etc/localtime
is used.
Written by David MacKenzie.
Report bugs to <bug-coreutils@gnu.org>.
Copyright © 2007 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.
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.
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