Mars Clock

Mars time in the browser.

TODO:

1. Calculate Mars time
2. Calculate time for Curiosity
3. Calculate time for Spirit and Opportunity
4. Calculate time for Pathfinder
5. Calculate time for Phoenix
6. Calculate time for InSight
7. Calculate time for Viking landers
8. Add Mars calendar
9. Add Mars daylight map
10. Highlight Mission coordinates on the map
11. Replace daylight map with Google Mars?
12. Call to http://worldclockapi.com/ for time instead of trusting the browser.
13. Publish to Github Sites.