Size Chart. Over 90% of the population is a normal width. If you are not sure of your width, chances are you wear a normal width. If a size is listed with just a number, this means the size is only available in a normal width. Below are some common notations that indicate a width measurment.
One year on Mars about 687 Earth days. That's about 1.88 Earth years. The length of a sidereal year on Mars is about 686.98 Earth solar days (24 hours). More info aboutâ¦ Time Keeping on Mars: http://en.wikipedia.org/wiki/Timekeeping_on_Mars.
So the Martian year consists of 668.6 Martian days.   A Martian day is 39.5 minutes longer than an Earth day. But Mars' circumference is just over half of Earth's, so its spin velocity is also about half, just 868 km/hr compared to Earth's 1674 km/hr at the Equator.