Dates and times of about 1650 cities around the world are displayed, and their daylight saving times (summer times) are updated automatically during the year. The calculations are based upon the user computer date and time. The user location is selected from a database of about 1400 cities of the world, representing all of the time zones or fractional time zones. The database contains about 300 [countries] for ease of query, eg. Wake Island is considered a country in the database.
This software is a shareware. You will be able to download and test Global TimePiece during a certain period of time, then, if it does what you need, you will have to acquire the full version from Global TimePiece publisher. The Global TimePiece 2.12 free trial version contains an installer and an uninstaller, and has a size of 3067 Kilobytes.
For additional information and support request, please contact directly Global TimePiece publisher.

Global TimePiece Screenshot