Slashtime is a small program which displays the time in various places. It has a compact display of locations along with supporting information such as the date and the abbreviated code used to name that timezone. The feature that made Slashtime unique when first created is that is shows the offset from the current location, not from UTC. When running you can change the center point by double-clicking on another city.
Time data displayed will be as accurate as that currently supplied by your distro; the system's zoneinfo data is used. The program does its best to determine what your current location actually is; that is the line shown in blue. Universal Time, Co-ordinated is always shown in green.
There is a meeting planner built into Slashtime which you can activate by right-clicking on the zones list. Using it you can specify a date and time and see what the corresponding time in other locations will be. When the meeting planner is active the zones list is bordered in red to warn you that it is not showing the current time.
There is a README with information about how to build and run the program, along with a brief FAQ. The PLACES file documents how you can customize the timezones that will be shown. And of course, there is the obligatory screenshot here on this page.
Slashtime was written by Andrew Cowie and has been improved by patches from people around the world. If you would like to ask questions, you can contact AfC in #java-gnome on the irc.gimp.net IRC network.