Time Zone Map, Wall Map Size Here's a colorful wall map for your office that will  always keep you on-time for that overseas call. The colored stripes on this time zone map really makes it easy to see which areas of the world are in which time zone. But these series of time zone maps have a real innovation. You can order the map based on your own  U.S. time zone. That way you don't have to know GMT and then figure out the time.  All the plus and minus numbers for the time zones are based on YOUR time-zone. It's so easy.  Just click the Add-to-Cart button of your choice.  If you co-ordinate many locations then take the standard GMT based map. Double-click on the map or use the tools at the bottom to zoom in on this map and see all the detail.