date(1) 						      General Commands Manual							   date(1)

NAME

       date - display or set the date and time

SYNOPSIS

       [mmddhhmm[[cc]yy]]

       sssfff]]

DESCRIPTION

       The  command  displays or sets the current HP-UX system clock date and time.  Since the HP-UX system operates in Coordinated Universal Time
       (UTC), automatically converts to and from local standard or daylight/summer time, based on your environment variable.  See in below.

   Options
       recognizes the following option:

	      Input and output values in Coordinated Universal Time (UTC),
		     functionally equivalent to Greenwich Mean Time (GMT), instead of in local time.

	      Slowly adjust the time by
		     seconds (fff represents fractions of a second).  This adjustment can be positive or negative.  The  system's  clock  will	be
		     sped up or slowed down until it has drifted by the number of seconds specified.

   Formats
       The command has two forms for displaying the date and time and one form for setting them.

				    Display the current date and time.
		      The output is the same as for the formatting directive for all languages except the default language.  See and below.

				    Display the current date and time
		      according to formatting directives specified in format, which is a string of zero or more formatting directives and ordinary
		      characters.  If it contains blanks, enclose it in apostrophes or quotation marks.

		      See below.

		      All ordinary characters are copied unchanged into the output string.

		      The output string is always terminated with a newline character.

		      If is specified and format is omitted, only a newline is output.

				    Set the HP-UX system clock to the date and time specified.
		      You require the superuser privilege.

		      If you include the option, the specified date and time is assumed to be in Coordinated Universal Time (UTC).

		      The numeric argument is interpreted left to right in two-digit pairs as follows:

			   mm	  Month number
			   dd	  Day number in the month
			   hh	  Hour number (24-hour system)
			   mm	  Minute number
			   cc	  Century minus one
			   yy	  Last two digits of the year number If omitted, the current year is used.

		      If you attempt to set the date backwards, generates the warning,

		      Type or the equivalent for your locale to set the clock backwards; anything else to cancel the command.

		      When is used to set the date, a pair of date change records is written to the file

		      (UNIX Standard only, see standards(5).)  No warning is generated if date is set backwards.

   Formatting Directives
       The following formatting directives, shown without the optional field width and precision specification,  are  replaced	by  the  indicated
       characters.  If a directive is not one of the following, the result is undefined.

       The output for digits, characters, and words depends on the language/locale settings.  See in below.

       The  examples  assume that the command was executed on Wednesday, January 12, 1994 at 7:45:58 p.m. Pacific Standard Time, using the default
       language.

	      Abbreviated weekday name.
		     For example,

	      Full weekday name.
		     For example,

	      Abbreviated month name.
		     For example,

	      Full month name.
		     For example,

	      Current date and time representation.
		     For example,

	      Century (the year divided by 100 and truncated to an integer)
		     as a two-digit decimal number For example,

	      Day of the month as a two-digit decimal number
		     For example,

	      Day of the month as a two-character decimal number with leading space fill [
		     ].  For example,

	      Combined Emperor/Era name and year.

	      Hour (24-hour clock) as a two-digit decimal number
		     For example,

	      Hour (12-hour clock) as a two-digit decimal number
		     For example,

	      Day of the year as a three-digit decimal number
		     For example,

	      Month as a decimal two-digit number
		     For example,

	      Minute as a decimal two-digit number
		     For example,

	      Newline character.

	      Emperor/Era name.

	      Emperor/Era year.

	      Equivalent of either AM or PM.
		     For example,

	      Time as %H:%M

	      Second as a two-digit decimal number (allows for possible leap seconds)
		     For example,

	      Tab character.

	      Weekday as a one-digit decimal number
		     For example,

	      Week number of the year
		     (Sunday as the first day of the week) as a two-digit decimal number All days that precede the first Sunday in  the  year  are
		     considered to be in week For example,

	      Week number of the year
		     (Monday as the first day of the week) as a two-digit decimal number If the week containing January 1 has four or more days in
		     the new year (January 1 is Thursday or sooner), it is designated as week otherwise, (January 1 is Friday  or  later),  it	is
		     designated as the last week of the previous year, and the next week is week For example,

	      Weekday as a one-digit decimal number
		     For example,

	      Week number of the year (Monday as the first day of the week)
		     as a two-digit decimal number All days that precede the first Monday in the year are considered to be in week For example,

	      Current date representation.
		     For example,

	      Current time representation.
		     For example,

	      Year without century as a two-digit decimal number
		     For example,

	      Year with century as a four-digit decimal number
		     For example,

	      Time zone name
		     (or no characters if time zone cannot be determined).  For example,

	      The    character.

   Obsolescent Directives
       The following directives are provided for backward compatibility.  It is recommended that the preceding directives be used instead.

	      Date in usual U.S. format.
		     For example, Use or instead.

	      Full month name.
		     For example, Use instead.

	      Abbreviated month name.
		     For example, Use instead.

	      Time in 12-hour U.S. format.
		     For example, Use instead.

	      Time in 24-hour U.S. format.
		     For example, Use or instead.

	      Time zone name
		     (or no characters if time zone cannot be determined).  For example, Use instead.

   Modified Formatting Directives
       Some  Formatting Directives can be modified by the and modifier characters to indicate a different format or specification for the language
       specified in the environment variable.

       If the corresponding keyword and is not specified or not supported, the unmodified field descriptor value is used.  The command

       displays the keywords and their values in the specified language (see locale(1)).

	      Alternate appropriate date and time representation.

	      The name of the base year in alternate representation.

	      Alternate date representation.

	      Offset from
			(year only) in the alternate representation.

	      Full alternate year representation.

	      Day of month using the alternate numeric symbols.

	      Day of month using the alternate numeric symbols
			with leading space-character fill if applicable.

	      Hour (24-hour clock) using the alternate numeric symbols.

	      Hour (12-hour clock) using the alternate numeric symbols.

	      Month using the alternate numeric symbols.

	      Minutes using the alternate numeric symbols.

	      Seconds using the alternate numeric symbols.

	      Week number of the year
			(Sunday is the first day of the week) using the alternate numeric symbols.

	      Weekday as number using the alternate numeric symbols

	      Weekday number of the year
			(Monday is the first day of the week) using the alternate numeric symbols.

	      Year (offset from
			in alternate representation.

   Field Width and Precision
       An optional field width and precision specification can immediately follow the initial of a formatting directive in the following order:

	      The decimal digit string
			  width specifies a minimum field width in which the result of the conversion is right- or left-justified.  The default is
			  right-justified  with  space padding on the left.  If the string starts with "", the result is left-justified with space
			  padding on the right.  If the string starts with "", the result is right-justified and padded with zeros on the left.

	      The decimal digit string
			  prec specifies the minimum number of digits to appear for the and numeric directives.  If  a	directive  supplies  fewer
			  digits than specified by the precision, it will be expanded with leading zeros.

			  prec	specifies  the maximum number of characters to be used from the and text directives.  If a directive supplies more
			  characters than specified by the precision, excess characters are truncated on the right.

       If no field width or precision is specified for a or directive, the default is for the directive, the default is for the default is for the
       default is

EXTERNAL INFLUENCES

       For information about the UNIX Standard environment, see standards(5).

   Environment Variables
       determines the interpretation of the bytes within the format string as single- and/or multi-byte characters.

       determines  the	characters  used  to  form numbers for those directives that produce numbers in the output.  The characters used are those
       defined by (see locale(1) and in langinfo(5)).

       determines the content (for example, the weekday names produced by the directive) and format (for example, the current time  representation
       produced by the directive) of date and time strings output by the command.

       determines the language in which messages (other than the date and time strings) are displayed.

       If or is not specified or is null, it defaults to the value of

       If is not specified or is null, it defaults to (see lang(5)).

       If any internationalization variable contains an invalid setting, all internationalization variables default to (see environ(5)).

       determines  the	conversion  between the system time in UTC and the time in the user's local time zone.	See environ(5) and tztab(4).  also
       determines the content (that is, the time-zone name produced by the and directives) of date and time strings output by the command.

       If is not set or is set to the empty string, its default value is If the or the value cannot be read from the time  zone  adjustment  table
       then returns the time in

   International Code Set Support
       Single and multibyte character code sets are supported.

DIAGNOSTICS

       The following messages may be displayed.

		      The date/time specification is syntactically incorrect.
	       Check it against the usage and for the correct range of each of the digit-pairs.

		      The character
	       c is not a valid format directive, field width specifier, or precision specifier.

		      The date/time you specified is earlier than the current clock value.
	       Type (or the equivalent for your locale) to set the clock backwards; anything else to cancel the command.

		      You need the
	       superuser privilege to change the date.

EXAMPLES

   Date in Different Languages
       Display the date.  In this example, the environment variable contains and the language environment variables are set as noted.

   Set Date
       Set the date to Oct 8, 12:45 a.m.

   Display Formatted Date
       Display the current date and time using a format.  Note the use of quotation marks due to the blanks in the format.

       The output resembles the following:

   Display Formatted Date Using Local Language Conversion
       With the date as set in the "Set Date" example above and set to (German):

       generates output similar to:

       where the month field is four characters long, flush-left, and space-padded on the right if the month name is shorter than four characters.
       The day field is two characters long, with leading zeros suppressed.

WARNINGS

       The former HP-UX format directive has been changed to for ANSI compatibility.

       Changing the date while the system is running in multiuser mode should be avoided to prevent disrupting user-scheduled and  time  sensitive
       programs  and  processes.   Also,  changing  the  date can cause and the SCCS and subsystems to behave in an unexpected manner.	The daemon
       should be killed prior to setting the date backwards, then restarted.  SCCS files should be checked with the command (see val(1)) if deltas
       have been made while the clock was wrongly set.

       The following formatting directives may be deleted from future releases:

       Currently, the maximum date supported is December 31, 2037 23:59:00 UTC.

AUTHOR

       was developed by AT&T and HP.

FILES

SEE ALSO

       locale(1), stime(2), ctime(3C), strftime(3C), tztab(4), environ(5), lang(5), langinfo(5), standards(5).

STANDARDS CONFORMANCE

																	   date(1)