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date(1)				 User Commands			       date(1)

NAME
       date - write the	date and time

SYNOPSIS
       /usr/bin/date [-u] [ +format]

       /usr/bin/date [ -a  [-]sss.fff]

       /usr/bin/date [-u] [ [mmdd] HHMM	|  mmddHHMM [cc] yy]  [.SS]

       /usr/xpg4/bin/date [-u] [ +format]

       /usr/xpg4/bin/date [ -a	[-]sss.fff]

       /usr/xpg4/bin/date [-u] [ [mmdd]	HHMM |	mmddHHMM [cc] yy]  [.SS]

DESCRIPTION
       The  date  utility  writes  the date and	time to	standard output	or at-
       tempts to set the system	date and time. By default,  the	 current  date
       and time	is written.

       Specifications  of  native  language  translations of month and weekday
       names are supported. The	month and weekday names	used  for  a  language
       are  based on the locale	specified by the environment variable LC_TIME.
       See environ(5).

       The following is	the default form for the "C" locale:

       %a %b %e	%T %Z %Y

       For example,

       Fri Dec 23 10:10:42 EST 1988

OPTIONS
       The following options are supported:

       -a [-]sss.fff   Slowly adjust the time by sss.fff seconds  (fff	repre-
		       sents  fractions	 of  a second).	This adjustment	can be
		       positive	or negative. The system's clock	is sped	up  or
		       slowed  down until it has drifted by the	number of sec-
		       onds specified. Only  the  super-user  may  adjust  the
		       time.

       -u	       Display (or set)	the date in Greenwich Mean Time	(GMT--
		       universal time),	bypassing the normal conversion	to (or
		       from) local time.

OPERANDS
       The following operands are supported:

       +format	       If  the	argument  begins with +, the output of date is
		       the result of passing format and	the  current  time  to
		       strftime().  date  uses	the  conversion	specifications
		       listed on the strftime(3C) manual page, with  the  con-
		       version	specification  for  %C	determined  by whether
		       /usr/bin/date or	/usr/xpg4/bin/date is used:

		       /usr/bin/date	       Locale's	date and  time	repre-
					       sentation.  This	is the default
					       output for date.

		       /usr/xpg4/bin/date      Century (a year divided by  100
					       and truncated to	an integer) as
					       a decimal number	[00-99].

		       The string is always terminated with a NEWLINE. An  ar-
		       gument  containing blanks must be quoted; see the EXAM-
		       PLES section.

       mm	       Month number

       dd	       Day number in the month

       HH	       Hour number (24 hour system)

       MM	       Minute number

       SS	       Second number

       cc	       Century (a year divided by 100 and truncated to an  in-
		       teger)  as a decimal number [00-99]. For	example, cc is
		       19 for the year 1988 and	20 for the year	2007.

       yy	       Last two	digits of the year number. If century (cc)  is
		       not specified, then values in the range 69-99 shall re-
		       fer to years 1969 to 1999 inclusive, and	values in  the
		       range  00-68  shall refer to years 2000 to 2068,	inclu-
		       sive.

       The month, day, year number, and	century	may be	omitted;  the  current
       values are applied as defaults. For example, the	following entry:

       example%	date 10080045

       sets  the date to Oct 8,	12:45 a.m. The current year is the default be-
       cause no	year is	supplied. The system operates in GMT. date takes  care
       of  the	conversion  to and from	local standard and daylight time. Only
       the super-user may change the date. After successfully setting the date
       and  time,  date	displays the new date according	to the default format.
       The date	command	uses TZ	to determine the correct  time	zone  informa-
       tion; see environ(5).

EXAMPLES
       Example 1: Generating Output

       The following command:

       example%	date '+DATE: %m/%d/%y%nTIME:%H:%M:%S'

       generates as output

       DATE: 08/01/76

       TIME: 14:45:05

       Example 2: Setting the Current Time

       The following command sets the current time to 12:34:56:

       example#	date 1234.56

       Example 3: Setting Another Time and Date	in Greenwich Mean Time

       The following command sets the date to January 1st, 12:30 am, 2000:

       example#	date -u	010100302000

       This is displayed as:

       Thu Jan 01 00:30:00 GMT 2000

ENVIRONMENT VARIABLES
       See  environ(5) for descriptions	of the following environment variables
       that affect the execution of date:  LANG,  LC_ALL,  LC_CTYPE,  LC_TIME,
       LC_MESSAGES, and	NLSPATH.

       TZ	Determine the timezone in which	the time and date are written,
		unless the -u option is	specified. If the TZ variable  is  not
		set  and  the -u is not	specified, the system default timezone
		is used.

EXIT STATUS
       The following exit values are returned:

       0	Successful completion.

       >0	An error occurred.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

   /usr/bin/date
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE	TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |enabled			   |
       +-----------------------------+-----------------------------+

   /usr/xpg4/bin/date
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE	TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWxcu4			   |
       +-----------------------------+-----------------------------+
       |CSI			     |enabled			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       strftime(3C), attributes(5), environ(5),	standards(5)

DIAGNOSTICS
       no permission	       You are not the super-user  and	you  tried  to
			       change the date.

       bad conversion	       The date	set is syntactically incorrect.

NOTES
       If  you	attempt	 to  set the current date to one of the	dates that the
       standard	and alternate time zones change	(for example,  the  date  that
       daylight	 time  is starting or ending), and you attempt to set the time
       to a time in the	interval between the end of standard time and the  be-
       ginning of the alternate	time (or the end of the	alternate time and the
       beginning of standard time), the	results	are unpredictable.

       Using the date command from within windowing environments to change the
       date  can  lead	to unpredictable results and is	unsafe.	It can also be
       unsafe in the multi-user	mode, that is, outside of a windowing  system,
       if  the	date is	changed	rapidly	back and forth.	The recommended	method
       of changing the date is 'date -a'.

       Setting the system time or allowing the system time to progress	beyond
       03:14:07	UTC Jan	19, 2038 is not	supported on Solaris.

SunOS 5.10			  11 May 2004			       date(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | EXAMPLES | ENVIRONMENT VARIABLES | EXIT STATUS | ATTRIBUTES | SEE ALSO | DIAGNOSTICS | NOTES

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