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man : xclock(1)
XCLOCK(1) 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 stan-
dard 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
X Version 11 xclock 1.0.3 1
XCLOCK(1) XCLOCK(1)
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 exten-
sion 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 dif-
fer 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 fontconfig 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:
X Version 11 xclock 1.0.3 2
XCLOCK(1) XCLOCK(1)
width (class Width)
Specifies the width of the clock. The default for
analog clocks is 164 pixels; the default for digi-
tal 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 speci-
fied. 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.
X Version 11 xclock 1.0.3 3
XCLOCK(1) XCLOCK(1)
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 sup-
port.
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 fontconfig face format
described in the Font Names section of
fonts.conf(5).
sharp (class Boolean)
Specifies if sharp edges should be used when ren-
dering 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).
X Version 11 xclock 1.0.3 4
XCLOCK(1) XCLOCK(1)
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 struc-
ture. 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_MAN-
AGER property.
FILES
/etc/X11/app-defaults/XClock
specifies required resources
SEE ALSO
X(7), xrdb(1), time(3C), fonts.conf (5).
BUGS
Xclock believes the system clock.
When in digital mode, the string should be centered auto-
matically.
AUTHORS
Tony Della Fera (MIT-Athena, DEC)
Dave Mankins (MIT-Athena, BBN)
Ed Moy (UC Berkeley)
X Version 11 xclock 1.0.3 5
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