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 op-
tions 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 sec-
onds 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. This is only effective for the
brief display.
-twentyfour
This option indicates that a digital clock should display the
time in twenty-four hour format. This is only effective for the
brief display. 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 de-
fault 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 com-
piled with Xrender support. Note that the color selection op-
tions 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
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 re-
source 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 de-
fault depends on whether reverseVideo is specified. If reverse-
Video 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 de-
fault 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 cor-
rectly. 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 under-
stood:
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 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 win-
dow directly.
The defaults of the following color resources depend on whether reverse-
Video 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 indi-
cates 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 re-
sources 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 1.1.1 XCLOCK(1)
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