World Time. 

Keep track of times around the world.  Select up to five different locations to monitor from the included database of over 350 locations.  Also computes the current day and nighttime locations, along with sunrise and sunset times for any of the included locations.

Just download and put both the application and database on your MMC card.

World Time - Beta 0.8
Database: Jan 18, 2003
Source code for World Time - Beta 0.8

 

Adding or changing the database:   Click Here