TimeZoneConverter is a utility to convert date and times between different time zones. It is also an example Java application developed using the Presenter First UI development approach.

TimeZoneConverter Features:
1. Convert dates and times between different time zones
2. Honors daylight saving times
3. Supports three-letter time zone abbreviations (US-only)
4. Supports Olson (zoneinfo) time zone names (such as America/New_York)
5. Customizable Date/Time format
6. Optionally force itself to be the topmost window (always on top)
7. Supports translucency (Java 1.6 update 10 or higher only)

The license of this software is Free, you can free download and free use this digital clock & timer software.