As Mars orbits the Sun, it completes one rotation every 24.6 hours, which is very similar to one day on Earth (23.9 hours). Martian days are called sols – short for "solar day." A year on Mars lasts 669.6 sols, which is the same as 687 Earth days.
High thigh socks (often called over-the-knee socks) became popular in Japan during the 1990s with the "Zettai Ryōiki" fashion trend - the term describes the little strip of bare skin between the top of the socks and a skirt/shorts.
