xclock Analog/Digital Clock
xclock – continuously display the time in either analog or digital form.
xclock continuously displays the time of day, either in digital or analog form. In digital form, xclock displays the time using a 24-hour clock. It also displays the day, month, and year. In analog form, xclock displays a standard 12-hour clock face. You can set up more than one clock simultaneously.
The default clock is an analog clock with a black foreground on a white background. If you want to change the clock's appearance, type in the appropriate options. For example,
xclock -bd slateblue -fg navyblue -hl darkslategrey &
sets up a conventional 12-hour clock with a slate blue window border, navy blue tick marks, and dark slate grey hands.
By default, the clock is positioned in the upper-left corner of your background window. If you are running the default version of mwm, the window manager will place the clock in the upper-left quadrant of the screen, offset from the corner.
xclock accepts all of the standard X Toolkit command line options, which are listed on the X reference page. (We've included some of the more commonly used Toolkit options later in this section.) In addition, xclock accepts the following application-specific options:
Displays a brief summary of xclock's calling syntax and options.
Draws a conventional 12-hour clock face with tick marks for each minute and stroke marks for each hour. This is ...