-h, --help
Display help message and exit.
-V, --version
Display version and exit.
-v, --verbose
Increase verbosity of logging.
--background-colour <colour>
The background colour of the clock. The default is
  "#FFFFFF".
--border-colour <colour>
The border colour of the clock. The default is
  "#000000".
--border-size <size>, --border-size
    <top> <right> <bottom> <left>
Set the border size. Requires either one argument, to set
  all border sizes, or four arguments, to set the border sizes individually. The
  default border size is 0 (no border).
--corner-radius <radius>, --corner-radius
    <top-left> <top-right> <bottom-right>
  <bottom-left>
The radius of the corners. Expects either one argument,
  to set the radius of all corners, or four arguments, to set the individual
  corner radii. If set to sufficiently high values, wlclock will be completely
  round. Set to 0 to disable corner roundness. The default radius is 0.
--exclusive-zone <option>
Exclusive zone of the surface. Can be "true",
  "false" or "stationary". If "true", the
  compositor is informed that it should not obstruct the surface of wlclock with
  other surfaces. If "false", the compositor is informed that it can
  place other surfaces over or under the surface of wlclock. If
  "stationary", the compositor is informed that the surface of wlclock
  should not be moved to accommodate other layer shell surfaces and that it can
  freely place other surfaces over or under the surface of wlclock. The default
  is "stationary". The exact implementation is compositor dependant; A
  compositor may choose to ignore the requested exclusive zone of
  surfaces.
--layer <layer>
Layer of the layer surface. Can be "overlay",
  "top", "bottom" or "background". Typically,
  "bottom" and "background" will be underneath regular
  windows, while "top" and "overlay" will be above them,
  however the exact placement on the z axis depends on the implementation of the
  compositor. The default layer is "bottom".
--margin <size>, --margin <top>
    <right> <bottom> <left>
Set the margin. Requires either one argument, to set all
  margins, or four arguments, to set the margins individually. The default
  margin is 0.
--namespace <namespace>
The namespace of the layers surface. Some compositors may
  treat layer surfaces differently based on their namespace. The default is
  "wayout".
-input
If this flag is set, wayout will ask the compositor to
  send it input events; Otherwise (the default) mouse events pass through wayout
  to windows beneath it.
--output <output name>
Name of the output on which wlclock should be displayed.
  Output names are compositor dependant. If set to "all" or
  "*", wlclock will be displayed on all outputs, which is the default
  behaviour.
--position <position>
Set the position of the clock. Can be "center",
  "top", "right", "bottom", "left",
  "top-right", "top-left", "bottom-right" and
  "bottom-left". Defaults to "center".
--width <size>
The width of the widget, in pixels with borders. The
  default width is 320
--height <size>
The height of the widget, in pixels with borders. The
  default height is 240
--font <font>
Font pattern specification (e.g. Monospace 23)
--no-wrap
Disable wordwrap
-l, --feed-line
Update the text periodically and treat each line of the
  input as an update
-p, --feed-par
Update the text periodically and treat each paragraph
  (parts separated by an empty line) of the input as an update
--feed-delimiter
Update the text periodically, use a custom delimiter. If
  the input line corresponds to the delimiter, an update is triggered.
-i, --interval <milliseconds>
The update interval in milliseconds (only used with the
  feed options).