XCLOCK(1)						      General Commands Manual							 XCLOCK(1)

NAME

       xclock - analog / digital clock for X

SYNOPSIS

       xclock  [  -help  ]  [  -analog	|  -digital ] [ -brief ] [ -chime ] [ -hd color ] [ -hl color ] [ -update seconds ] [ -strftime format ] [
       -twelve | -twentyfour | -utime ] [ -padding number ] [ -norender ] [ -render ] [ -sharp ] [ -face pattern ]

DESCRIPTION

       The xclock program displays the time in analog or digital form.	The time is continuously updated at a frequency which may be specified	by
       the user.

OPTIONS

       Xclock accepts all of the standard X Toolkit command line options along with the additional options listed below:

       -help   This option indicates that a brief summary of the allowed options should be printed on the standard error.

       -analog This option indicates that a conventional 12 hour clock face with tick marks and hands should be used.  This is the default.

       -digital or -d
	       This option indicates that a 24 hour digital clock should be used.

       -brief  This  option  indicates	that  the digital clock should only display the hours and minutes fields.  The default is to show the full
	       time and date information.

       -utime  This option indicates that a digital clock should display seconds since the  Epoch  (in	format	'970012340  seconds  since  Epoch'
	       instead of a standard 24-hour time.

       -strftime format
	       This option allows an strftime(3) format string to be specified for the digital clock's display.

       -twelve This option indicates that a digital clock should display the time in twelve hour format.

       -twentyfour
	       This  option indicates that a digital clock should display the time in twenty-four hour format.	This is the default when a digital
	       clock is used.

       -chime  This option indicates that the clock should chime once on the half hour and twice on the hour.

       -hands color (or -hd color)
	       This option specifies the color of the hands on an analog clock.  The default is black.	This option is	effectively  ignored  when
	       Xrender is in use.

       -highlight color (or -hl color)
	       This option specifies the color of the edges of the hands on an analog clock, and is only useful on color displays.  The default is
	       black.  This option is effectively ignored when Xrender is in use.

       -update seconds
	       This option specifies the frequency in seconds at which xclock should update its display.   If  the  clock  is  obscured  and  then
	       exposed,  it will be updated immediately.  A value of 30 seconds or less will enable a second hand on an analog clock.  The default
	       is 60 seconds.

       -padding number
	       This option specifies the width in pixels of the padding between the window border and clock text or picture.  The default is 10 on
	       a digital clock and 8 on an analog clock.

       -render This option tells xclock to use the Xrender extension to draw an anti-aliased face. This is the default if xclock has been compiled
	       with Xrender support.  Note that the color selection options and resources used when Xrender is in effect differ from the  standard
	       options.

       -norender
	       This option turns off the use of Xrender to draw the clock.

       -sharp  This option tells xclock to use sharper edges when drawn using the Xrender extension.

       -face pattern
	       This  option  specifies the font to use in digital mode when the Xrender extension is used.  Patterns are specified using the font-
	       config face format described in the Font Names section of fonts.conf(5).

X DEFAULTS

       This program uses the Clock widget.  It understands all of the core resource names and classes as well as:

       width (class Width)
	       Specifies the width of the clock.  The default for analog clocks is 164 pixels; the default  for  digital  clocks  is  whatever	is
	       needed to hold the clock when displayed in the chosen font.

       height (class Height)
	       Specifies  the  height  of  the	clock.	The default for analog clocks is 164 pixels; the default for digital clocks is whatever is
	       needed to hold the clock when displayed in the chosen font.

       update (class Interval)
	       Specifies the frequency in seconds at which the time should be redisplayed.

       foreground (class Foreground)
	       Specifies the color for the tick marks. The default depends on whether reverseVideo is specified.  If reverseVideo is specified the
	       default is lwhite, otherwise the default is black.

       hands (class Foreground)
	       Specifies the color of the insides of the clock's hands. The default depends on whether reverseVideo is specified.  If reverseVideo
	       is specified the default is lwhite, otherwise the default is black.  Note that this resource is not used when Xrender is in effect.

       highlight (class Foreground)
	       Specifies the color used to highlight the clock's hands. The default is
		depends on whether reverseVideo is specified.  If reverseVideo is specified the default is lwhite, otherwise the default is black.
	       Note that this resource is not used when Xrender is in effect.

       analog (class Boolean)
	       Specifies whether or not an analog clock should be used instead of a digital one.  The default is True.

       twentyfour (class Boolean)
	       Specifies whether or not a digital clock should display the time in twenty-four hour format.  The default is True.

       chime (class Boolean)
	       Specifies whether or not a bell should be rung on the hour and half hour.

       padding (class Margin)
	       Specifies the amount of internal padding in pixels to be used.  The default is 8.

       font (class Font)
	       Specifies  the  font to be used for the digital clock.  Note that variable width fonts currently will not always display correctly.
	       This font is only used when Xrender is not in effect.

       render (class Boolean)
	       Specifies whether or not the Xrender extension should be used for the display. The default is True if xclock has been compiled with
	       Xrender support.

       When Xrender is in effect, the following additional resources are understood:

       face (class FaceName)
	       Specify the pattern for the font to be used for the digital clock when Xrender is used.	 Patterns are specified using the fontcon-
	       fig face format described in the Font Names section of fonts.conf(5).

       sharp (class Boolean)
	       Specifies if sharp edges should be used when rendering the clock.  The default is False.

       buffer (class Boolean)
	       Specifies that the updates of the image are drawn to a pixmap before copied into the window instead drawing them  into  the  window
	       directly.

       The  defaults  of  the  following color resources depend on whether reverseVideo is specified.  If reverseVideo is specified the default is
       lwhite, otherwise the default is black.

       hourColor (class Foreground)
	       The color of the hour hand.

       minuteColor (class Foreground)
	       The color of the minute hand.

       secondColor (class Foreground)
	       The color of the second hand.

       majorColor (class Foreground)
	       The color of the major scale ticks (i. e. each five minutes).

       minorColor (class Foreground)
	       The color of the minor scale ticks (between major ticks).

WIDGETS

       In order to specify resources, it is useful to know the hierarchy of the widgets which compose xclock.  In the notation below,  indentation
       indicates hierarchical structure.  The widget class name is given first, followed by the widget instance name.

       XClock  xclock
	    Clock  clock

ENVIRONMENT

       DISPLAY to get the default host and display number.

       XENVIRONMENT
	       to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

FILES

       /etc/X11/app-defaults/XClock
	      specifies required resources

SEE ALSO

       X(7), xrdb(1), time(3), fonts.conf (5).

BUGS

       Xclock believes the system clock.

       When in digital mode, the string should be centered automatically.

AUTHORS

       Tony Della Fera (MIT-Athena, DEC)
       Dave Mankins (MIT-Athena, BBN)
       Ed Moy (UC Berkeley)

X Version 11							   xclock 1.0.6 							 XCLOCK(1)