Zone Manager v1.4 ** Updated June 19, 2007 Download your free copy of Karen's Zone Manager Take control of Windows' Time Zones! Now you can create a desktop shortcut to any time zone, allowing you to switch between zones with just the double-click of your mouse. You can even create your own custom time zones, enabling or disabling settings such as Daylight Saving Time. When you change zones, your computer's clock is adjusted automatically. Or, at any time, the Zone Manager can synchronize your computer's clock to one of the ultra-precise Internet Time Servers!
Karen's Time Zone Management Utility Download Link