From NASA Goddard Institute for Space Studies:
Cross-platform Java application which displays a Mars "sunclock", a graphical representation of Mars showing the current sun- and nightsides of Mars, along with a numerical readout of the time in a 24-hour format. Other displays include a plot of the relative orbital positions of Mars and Earth and a diagram showing the day's solar path for a given location on Mars.
What's new in this version:
- Bugfix: Error in subsolar longitude calculation, which affects sunrise and sunset calculations.
- Contextual menus added to both graphic and time windows. Among menu options is resizing of window to one of several pre-defined sizes.