Simon's World Map


Now that I'm playing with DX on 80m I need a simple display which shows me at the very least:

  • Current Time
  • Sunrise / Sunset
  • Greyline map
  • DX stations

There are commercial geo clock solutions such as Geochron, but as a programmer with spare HD monitors and computers I decided to write my own, that way i have exactly what I want.


This is a rewrite of a previous project, this program:

  • Uses DirectX / Direct2D graphics
  • Requires minimumal CPU power, will run on any Windows 7 / 8 / 10 system
  • Written to learn some new areas of Direct2D graphics
  • Written with Visual Studio 2017 (normally VS2013 is used) to learn the new features of VS2017

As time permits the program will be updated, I have a few interesting ideas in the pipeline.


The program includes three resized Natural Earth maps which have been resized to 4k or slightly less.

Higher-resolution files scale better when a Zoom is applied, but you may have problems loading them (see Errors below).

Click on a link below to download the image to your computer, then select the image (Ribbon bar, Map, Select). Only jpg format images are supported.

Nautal Earth 1 Cross-blended Hypsometric Tints



Natural Earth II with Shaded Relief, Water, and Drainages



Natural Earth III Texture (No Ice, No Clouds)



One error has been found, this is currently being investigated. The error is shown below. This occurs if the image file cannot be loaded, so try a smaller size instead.


Version 1.0.5, September 21st, 2018 [link]



Shaded Relief

Ideas and Techniques about Relief Presentation on Maps

Natural Earth

Free vector and raster map data at 1:10m, 1:50m, and 1:110m scales





  • Sunrist/sunset
  • Current time (local/UTC)
  • Timesones
  • Country borders
  • Station list

Time Offset

With the time offset you easily select any time in the past or future, the greyline / sunrise / sunset honour this offset. A simple way to see what the greayline will be like for DX planning.


  • Full screen
  • Disable screensaver
  • Disable sleep
  • Screenshots