Is there a "time difference" between Mars and Earth?

Source: Science and Technology Daily

On May 15, China's first Mars exploration mission, the Tianwen-1 probe, successfully landed in the preselected landing area in the southern part of the Martian Utopian Plain, leaving a Chinese imprint on Mars for the first time and taking an important step in China's interstellar exploration journey.

The Zhu Rong Mars rover, which has been traveling for nearly 10 months, has now officially opened the "day and night" of patrolling and exploring this distant and mysterious planet...

Wait, is a day and a night on Mars 24 hours like Earth? Intuitively, it doesn't. So, how much is the difference between a day on Mars and a day on Earth?

To figure this out, you must first know what a "day" is. Tong Minglei, a researcher at the National Timing Center of the Chinese Academy of Sciences, told reporters that in layman's terms, the planet rotates for one day a week. Scientists have fictionalized a reference point such as the "flat sun", whose speed is equal to the average speed of the sun moving on the ecliptic plane, and the two consecutive middle days of the flat sun become a flat sun day.

The planets of the solar system rotate at the same time, but also orbit around the sun, so the earth's movement relative to the star background is more reflective of the earth's rotation. Taking the star as a reference, the interval between the vernal equinox and the middle day is one star day.

Therefore, according to the time scale defined on Earth, a flat solar day on Mars is 24 hours, 39 minutes, 35.244 seconds, and the earth's ordinary solar day is 24 hours, with a difference of more than 39 minutes and 35 seconds; in terms of stellar days that more reflect the rotation period, a star day on Mars is 24 hours, 37 minutes and 22.663 seconds, and the Earth is 23 hours, 56 minutes and 4.099 seconds, and the difference between the two is about 41 minutes and 19 seconds.

Roughly understood, a day on Mars is about 40 minutes longer than a day on Earth, which is equivalent to Zhu Rong, if it is active on Mars for 36 days, it will be 24 hours later than the people on Earth - a whole day!

Tong Minglei introduced that the difference between a weekday sun day and a stellar day, the earth reached nearly 4 minutes, obviously larger than the 2 minutes of Mars. That's because Mars has a longer orbital period of 687 days, nearly twice as long as Earth's orbital period.

"The orbits of Mars and Earth around the Sun are not perfectly round but elliptical, and the eccentricity of the Martian orbit is 0.0934, which is much higher than the eccentricity of the Earth's orbit of 0.0167, making the length of the seasons of Mars more inconsistent, so it is more necessary to establish flat solar time or stellar time." Tong Minglei said.

Then, if you want Zhu Rong to live the same 24-hour clock on Mars as the Earthlings, the second length of Mars will be longer than the second length of the Earth, and the second length of the ordinary solar day will be magnified by 1.02749 times relative to the Earth; and the second length of the star day will be magnified by 1.02877 times, which is derived from the ratio of the Rotation Rate of the Earth to the rotation rate of Mars.

It seems a bit complicated to convert. Otherwise, Zhu Rong, or live your "Martian time".