Windows Vista includes the innovative new Sidebar. This can host gadgets, such as this Faber Optimé clock gadget - Tempus Optimé.
A variation of an original Hans Donner design, it has the following features:
A unique movement - seconds are shown sweeping on the outside ring, minutes on the middle ring and hours in the centre. The original Hans Donner movement can be used instead, if preferred.
Capability to set to a specific time zone. By default the clock shows the computer's local time.
Nine choices of background colour.
Thus you can have multiple clocks active at the same time, each set to differing time zones and colours.
Expanded and compact modes.
A (localised) "How It Works" animation, illustrating the original Hans Donner design concept.