xclock - analog / digital clock for X
xclock [
-help ] [
-analog |
-digital ] [
-brief ] [
-chime ] [
-hd color ] [
-hl
color ] [
-update seconds ] [
-strftime
format ] [
-twelve |
-twentyfour |
-utime ] [
-padding number ] [
-norender ] [
-render ] [
-sharp ] [
-face pattern ]
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.
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. 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 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 fontconfig
face format described in the Font Names section of
fonts.conf(5).
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 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 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).
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
- 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.
- /etc/X11/app-defaults/XClock
- specifies required resources
X(7),
xrdb(1),
time(3), fonts.conf (5).
Xclock believes the system clock.
When in digital mode, the string should be centered automatically.
Tony Della Fera (MIT-Athena, DEC)
Dave Mankins (MIT-Athena, BBN)
Ed Moy (UC Berkeley)