Displays all the TimeZones on your machine supported by Java, with their standard time and daylight saving time offsets from GMT, along with the their ID (programmer) names and display names. It also displays the UTC time, local time, and your default TimeZone and whether daylight savings is currently in effect. Version 1.4 2007-08-08. Major overhaul. Now done with Swing and a JTable. Displays default TimeZone. Displays current local time showing TimeZone and whether daylight savings in use.