date man page on Ultrix

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date(1)								       date(1)

Name
       date - print date and time

Syntax
       date [-c | -u] [ +format ] [[yy[mm[dd]]]hhmm[.ss][-[-]tttt][z]]

Description
       If  no argument is given, or if the argument begins with +, the current
       date and time are printed.  Otherwise, the current date is set.

   BSD and POSIX Environment Only
       To specify timezone and Daylight Savings Time display  rules  different
       from  those  normally provided by the system, set the environment vari‐
       able TZ using any of the three formats described in

   Setting the Date
       The first mm is the month number; dd is the day number in the month; hh
       is the hour number (24 hour clock); the second mm is the minute number;
       .ss the second; -[-]tttt is the minutes west of Greenwich;  a  positive
       number  means  your  time zone is west of Greenwich (for example, North
       and South America) and a negative number means it is east of  Greenwich
       (for example Europe); z is a one letter code indicating the dst correc‐
       tion mode (n=none,  u=usa,  a=australian,  w=western  europe,  m=middle
       europe,	e=eastern  europe); yy is the last 2 digits of the year number
       and is optional.	 The following example sets the date to Oct  8,	 12:45
       AM:
       date 10080045
       The  current  year  is the default if no year is mentioned.  The system
       operates in GMT.	 The takes care of the conversion to  and  from	 local
       standard and daylight time.

       If  the	argument  begins with +, the output of is under the control of
       the user.  The format for the output is similar to that	of  the	 first
       argument	 to All output fields are of fixed size (zero padded if neces‐
       sary).  Each field descriptor is preceded by % and is replaced  in  the
       output  by  its corresponding value.  A single % is encoded by %%.  All
       other characters are copied to the output without change.   The	string
       is always terminated with a new-line character.

Options
       -c     Perform	operations  using  Coordinated	Universal  Time	 (UCT)
	      instead of the default local time. The UCT  does	not  use  leap
	      seconds so UCT is the same as GMT.

       -u     Perform  operations  using  Greenwich Mean Time (GMT) instead of
	      the default local time.

       + format
	      The following is a list of field Descriptors that can be used in
	      the  format  (Note:  date exits after processing format informa‐
	      tion) :

		 %a   Locale's abbreviated weekday name

		 %A   Locale's full weekday name

		 %b   Locale's abbreviated month name

		 %B   Locale's full month name

		 %c   Locale's date and time representation

		 %d   Day of month as a decimal number (01-31)

		 %D   Date (%m/%d/%y)

		 %h   Locale's abbreviated month name

		 %H   Hour as a decimal number (00-23)

		 %I   Hour as a decimal number (01-12)

		 %j   Day of year (001-366)

		 %m   Number of month (01-12)

		 %M   Minute number (00-59)

		 %n   Newline character

		 %p   Locale's equivalent to AM or PM

		 %r   Time in AM/PM notation

		 %S   Second number (00-59)

		 %t   Tab character

		 %T   Time (%H/%M/%S)

		 %U   Week number (00-53), Sunday as first day of week

		 %w   Weekday number (0[Sunday]-6)

		 %W   Week number (00-53), Monday as first day of week

		 %x   Locale's date representation

		 %X   Locale's time representation

		 %y   Year without century (00-99)

		 %Y   Year with century

		 %Z   Timezone name, no characters if no timezone

		 %%   %

Examples
       The following command line
       date +%m/%d/%y
       generates the following output
       04/02/89
       The following command line
       date +"DATE: %m/%d/%y%nTIME: %H:%M:%S"
       generates the following output
       DATE: 04/02/89
       TIME: 14:45:05
       The quotes (") are necessary because the format contains blank  charac‐
       ters. Use single quotes (') to prevent interpretation by the shell.

Diagnostics
       Failed to set date: Not owner
	    You	 are  not the super-user and you tryed to change the date.  Do
	    not change the date while the system is running in multiuser mode.

Restrictions
       An attempt to set a date to before 1/1/1970 will	 result	 in  the  date
       being set to 1/1/1970.

Files
       /dev/kmem

								       date(1)
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