Vista: How to get yourself some 24h time (tip by Slimy)

Start -> Control Panel -> Regional and Language Options -> Formats -> Customize this Format -> Time -> Time Format -> Capitalize the "h". Your final Time Format should be: H:mm:ss or HH:mm:ss
The difference of the two is the first will display 8 ocklock as 8:00 and the second will display it as 08:00