mars

• Earth time should be your local time.
• Mars time is measured in SOLs.
• 1 SOL is a Martian day, and is 24 hours, 38 minutes, and 22 seconds long (in Earth time).
  • A Martian day has 24 Martian hours.
  • A Martian hour has 60 Martian minutes.
  • A Martian minute has 60 Martian seconds.
• The SOL count is the number of Martian days measured from the Mars local midnight just before the Pathfinder landed on July 4, 1997.
• Mars local time is based on the position of the Sun in the sky over the Pathfinder site at 19.22° N latitude, 326.59° E longitude.
• The source code for the applet can be found here.

Very helpful data was obtained from NASA's web site: http://mpfwww.arc.nasa.gov/mpf/mpftechtraj.html#MDATA -->

Other Mars clocks

http://www.geocities.com/~newgeneration/marsView.html

http://uah.seds.org/mars/

http://www.geocities.com/CapeCanaveral/4881/starlog.html

Note: This project is no longer actively maintained, but the code is available if you want it.