From Jesper Norgaard Welen:
World Time Explorer is a PC program to view current time for any place in the world, either from a list of more than 4882 cities, or from a world map that shows each GMT offset with a different color. Put family and friends in main window.
Historic info for each city with all GMT offset changes since 1850.
Calculate map colors for any given time since 1850.
Jump to map from list of cities and back with simple mouse clicks.
World flags and some state flags for all cities.
Set date and time display format freely.
Set weekday and month texts freely, possibly copying from Windows regional info.
Show population count for cities, sunrise and sunset, latitude, longitude, time.
Distance calculation between selected city and the mouse position on the map, if you jump from the city to the map.
Jump to a specific place in the map using latitude and longitude.
Check Windows time zone compared to your own time zone in the program.
Calendar with week numbers displayed, 2 months view.
Time Calculator reports current time in more thanl 494 world time zones, or based on a specific time in a specific place, output sorted by the criteria you want.
Minimizes to the System Tray.
Yearly report of DST changes for the whole world showing your own time when each change happens.
See how to edit Windows Time Zone Information.
Synchronize your PC clock with a time server.
Make list of people to show current or future past times with time calculator.
Daily Planner to see 24 hours plan for time in two places, to help making on-line meetings or phone calls.
Island search for islands that have no city included.
Help file with 55 topics.