JBCL About Time Clocks




AT Clock

There are a few variants of this

Windows 7 version of Clock (Jun 2010 - Apr 2018)


This is my favourite clock

This version is looks much the same as the standard Windows 7 clock (seen when clicking on the time in the bottom right of the screen).  (The older Windows 7 sidebar clock (option 2) is also very similar, but uses usually about 2-3% CPU for the Sidebar application.   Windows 7 itself warns about this sidebar using too much CPU as it impacts the overall performance of Windows (Performance and Reliability Centre).)

This version of the clock uses negligible system resources.

This clock is the same size as the Windows 7 clock, and is somewhat smaller and fainter than the older ATClock below. 

You can run this clock on any version of Windows - on Vista and Windows 7, Windows 10 etc it will look fine with Aero.

You can move it on the screen by dragging it with the mouse.

Windows XP some screens may have some flicker.

Examples:

Bright (with the mouse on clock)
ATClockW7a

and Dim (mouse off the clock)
ATClockW7a-Dim

This version uses about the same resources as the other 2 - ie no CPU measurable except for when the clock is moved on the screen. When moved about 3-4% CPU may be used for a moment - this is normal and acceptable.

Note - in the actual clock program the hands do move.

Note - These clock programs do not have a window with a close button, you can close them by right clicking on the task bar icon and selecting "Close"

There is a command line option for this - if run by the command

ATClockWin7a.exe  100

it will refresh every 100ms rather than the default of once per second - the second hand will move more smoothly.  This uses more CPU, about 0.08 to 0.1%.

Valid values are 20 upwards, default of 1 sec (1000ms) is recommended.

Other older Clocks


Analogue Clock

This is a inconspicuous floating desktop clock - it is transparent and always on top makes it look just like one of the Max OSX or Vista widgets/gadgets, can be dragged by the roundframe (the rest is transparent)

It is based on the look of one of the Opera transparent widget clocks, but also with seconds and date. The Opera one only runs while the browser is open, where as this one runs independently.

Free download - Postcardware or emailware:
If you like it send me an interesting postcard or email.

source available as well under informal public licence and GPL:

1 - feel free to use and modify it
2 - mention of the parts from me would be nice
3 - if you improve it send me a copy.
4 - If you like it/use it send me an email to let me know :). 

Note this clock will look transparent under Windows XP and Vista, and will probably not be suitable under other versions of Windows.

By default it postions itself half way down the right hand side of the screen.

Here is are examples of what it looks like over on a real screen:

Clock dimClock with mouse on

The left picture shows the normal appearance of the clock, the right picture shows how it becomes less transparent when the mouse moves over it.

Note in the real version the hands do move.

There is a command line option for this - if run by the command

ATClock.exe  100

it will refresh every 100ms rather than the default of once per second - the second hand will move more smoothly.  This uses more CPU, about 0.08 to 0.1%.

Valid values are 20 upwards, default of 1 sec (1000ms) is recommended.

Alternate Version - Ben Bois face

There is also now (October 2009) a new version with a nice image for a face:

ATClock3 - Image face BBOn background
The features are the same otherwise, it also becomes easier to see when the mouse is on it, and fades gradually after the mouse moves off.

I will be happy to add more versions if anyone can point me to some nice clock face images.

Note this version uses slightly more system resources, but still neglible to most ways of measuring it - ie repainting the image does use the CPU slightly more, but still not enough to show even at 1% or a fraction of a percent in Windows task manager.

Note - On some PCs with Windows XP this later clock flickers a little, it does not on Vista (or Windows 7).  The earlier clock does not flicker.

(no command line options for this clock yet).

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